This document provides an overview of the anatomy and biomechanics of the hip and knee joints. It describes the bones, ligaments, muscles, range of motion and movements of the hip and knee. It also reviews common pathologies that can affect the hip and knee joints, such as fractures, arthritis and anatomical abnormalities.
This document provides an overview of biomechanics of the sacroiliac joints. It discusses the osteology, articulating surfaces, ligaments, blood and nerve supply, factors promoting stability, kinematics, and functional considerations of the sacroiliac joints. It also covers clinical anatomy and sacroiliac dysfunction. The sacroiliac joints connect the sacrum to the iliac bones and allow for slight motion including rotation and translation while maintaining stability through interlocking surfaces and strong ligaments. Proper functioning of the sacroiliac joints is important for load transfer and movements including those related to childbirth.
The document summarizes the structure and function of the hip joint. It describes the hip joint as a ball and socket joint formed by the acetabulum of the pelvis articulating with the femoral head. It has 3 degrees of freedom including flexion/extension, abduction/adduction, and medial/lateral rotation. The document outlines the bones, ligaments, and angles that make up the hip joint, as well as some common abnormalities.
this is a slide show which gives in brief about anatomy and detailed description about biomechanics as well as pathomechanics of shoulder joint. various rhythms of shoulder complex are discussed as well along with the stability factors
1. The document discusses the biomechanics of the lumbar spine, including its osteology, articulations, ligaments, muscles, blood supply, and kinematics.
2. Key structures include the five lumbar vertebrae and intervertebral disks, facet joints, and ligaments like the anterior longitudinal ligament.
3. The major muscles are the erector spinae and multifidus posteriorly and abdominal muscles like rectus abdominis anteriorly. Range of motion includes flexion, extension, lateral flexion, and rotation.
This document summarizes the origins, insertions, actions and roles of various muscles around the hip and knee. It describes the rectus femoris, vastus intermedius, vastus lateralis, vastus medialis and other quadriceps muscles as knee extensors and hip flexors. It also outlines the hamstrings muscles and their actions as knee flexors and hip extensors. Additionally, it provides details on stabilizer muscles like the tensor fasciae latae, sartorius, gracilis, popliteus and others. The roles of these muscles in dynamic stabilization of the joints are emphasized.
MUSCLES OF THE VERTEBRAL COLUMN- The system of ligaments in the vertebral column, combined with the tendons and muscles, provides a natural brace to help protect the spine from injury. For More Online Medical Resource, Visit at http://gisurgery.info
THis PPT will give you knowledge about the principles of shoulder; articulating surface, motions, ligamentous structure and musculature structure that related to shoulder region.
This document provides an overview of biomechanics of the sacroiliac joints. It discusses the osteology, articulating surfaces, ligaments, blood and nerve supply, factors promoting stability, kinematics, and functional considerations of the sacroiliac joints. It also covers clinical anatomy and sacroiliac dysfunction. The sacroiliac joints connect the sacrum to the iliac bones and allow for slight motion including rotation and translation while maintaining stability through interlocking surfaces and strong ligaments. Proper functioning of the sacroiliac joints is important for load transfer and movements including those related to childbirth.
The document summarizes the structure and function of the hip joint. It describes the hip joint as a ball and socket joint formed by the acetabulum of the pelvis articulating with the femoral head. It has 3 degrees of freedom including flexion/extension, abduction/adduction, and medial/lateral rotation. The document outlines the bones, ligaments, and angles that make up the hip joint, as well as some common abnormalities.
this is a slide show which gives in brief about anatomy and detailed description about biomechanics as well as pathomechanics of shoulder joint. various rhythms of shoulder complex are discussed as well along with the stability factors
1. The document discusses the biomechanics of the lumbar spine, including its osteology, articulations, ligaments, muscles, blood supply, and kinematics.
2. Key structures include the five lumbar vertebrae and intervertebral disks, facet joints, and ligaments like the anterior longitudinal ligament.
3. The major muscles are the erector spinae and multifidus posteriorly and abdominal muscles like rectus abdominis anteriorly. Range of motion includes flexion, extension, lateral flexion, and rotation.
This document summarizes the origins, insertions, actions and roles of various muscles around the hip and knee. It describes the rectus femoris, vastus intermedius, vastus lateralis, vastus medialis and other quadriceps muscles as knee extensors and hip flexors. It also outlines the hamstrings muscles and their actions as knee flexors and hip extensors. Additionally, it provides details on stabilizer muscles like the tensor fasciae latae, sartorius, gracilis, popliteus and others. The roles of these muscles in dynamic stabilization of the joints are emphasized.
MUSCLES OF THE VERTEBRAL COLUMN- The system of ligaments in the vertebral column, combined with the tendons and muscles, provides a natural brace to help protect the spine from injury. For More Online Medical Resource, Visit at http://gisurgery.info
THis PPT will give you knowledge about the principles of shoulder; articulating surface, motions, ligamentous structure and musculature structure that related to shoulder region.
3. biomechanics of Patellofemoral jointSaurab Sharma
The patellofemoral joint is one of the most incongruent joints in the body. It depends on static structures like the lateral lip of the femoral condyle and the length of the patellar tendon for stability. Forces through the joint increase significantly during activities like squatting or ascending stairs. Pathologies of the patellofemoral joint can include osteoarthritis, ligament injuries, meniscal tears, and patellofemoral pain syndrome resulting from an imbalance of forces through the joint.
2. biomechanics of the knee joint artho, osteoSaurab Sharma
The document discusses biomechanics of the tibiofemoral joint, including osteokinematics (bone motions), arthrokinematics (joint motions), and the automatic locking/screw home phenomenon. It describes the two degrees of freedom of motion as flexion-extension along a migrating axis and internal-external rotation along a vertical axis. Arthrokinematics involve gliding and rolling motions of the femoral condyles on the tibia during extension. The automatic locking occurs through lateral rotation of the tibia on the femur during the last 30 degrees of extension, increasing joint stability.
This document discusses the biomechanics of the knee joint, including its structure, stability mechanisms, and kinetics. It describes the knee as a complex hinge joint made up of the femur, tibia, and patella. Key stabilizing structures include the collateral and cruciate ligaments, menisci, and surrounding muscles. The document outlines the knee's degrees of freedom and range of motion, including screw-home rotation. It also analyzes the forces acting on the knee during activities like walking, cycling, and squatting using free body diagrams and dynamic analysis.
This document provides an overview of the anatomy of the knee joint. It describes the bones that make up the knee (femur, tibia, patella). It then discusses the tibiofemoral joint and patellofemoral joint. It provides details on the degrees of freedom in the knee joint and the ligaments, menisci, and other structures that are involved in the knee joint.
This document summarizes the biomechanics of the hip joint. It describes the bony anatomy including the femoral head, acetabulum, and labrum. It also discusses the capsule, ligaments including the iliofemoral, pubofemoral, and ischiofemoral ligaments. Muscles that act on the hip joint and the ranges of motion are outlined. Factors affecting hip joint stability and weight transmission through the joint are summarized. Pathomechanics related to variations in the neck shaft angle and angle of torsion are covered.
The foot is a complex biomechanical structure that must provide both stability and mobility. It is composed of 26 bones arranged in 3 sections - the rearfoot, midfoot, and forefoot. The main joints of the foot include the subtalar, transverse tarsal, tarsometatarsal, metatarsophalangeal, and interphalangeal joints. These joints allow for pronation, supination, and a metatarsal break during gait to absorb shock and efficiently propel the body forward. The foot's unique bone structure and motion are finely tuned to support weight-bearing activities while accommodating varied surfaces.
The document provides information on the biomechanics of the cervical spine. It discusses the vertebrae, ligaments, joints, motions, forces, and muscles involved. Key points include that the atlantoaxial joint allows rotation, the atlantooccipital joint allows flexion and extension, and lateral flexion is coupled with rotation. Degenerative changes from aging can cause conditions like cervical spondylosis or radiculopathy by reducing the disc space and increasing pressure on nerves. Maintaining healthy discs is important for protecting spinal structures.
The document summarizes the anatomy and function of the knee joint. It describes the articulating surfaces of the patella and femur, the muscles that act on the knee joint as flexors, extensors, and rotators, and how the angle of pull of the quadriceps femoris muscle is increased by the patella acting as a pulley. It also discusses the Q-angle and how increased or decreased angles can impact patellofemoral contact pressures.
1) The sit-to-stand movement involves raising the body from a sitting to standing position and requires coordination of limbs to transfer weight while maintaining balance.
2) Individuals with knee osteoarthritis display different movement strategies during sit-to-stand, such as greater muscle co-contraction, earlier hamstring activation, and reduced hip and knee range of motion.
3) Altered movement strategies in osteoarthritis are thought to compensate for pain and weakness, helping to accomplish the task while protecting the affected knee joint.
The document discusses the biomechanics of the knee joint, including the tibiofemoral joint and patellofemoral joint. It covers the articulating surfaces, degrees of freedom, ligaments, muscles, alignment and weight bearing forces of the knee. It also discusses normal patellar tracking in the trochlear groove during range of motion and the changing contact areas between the patella and femur through different degrees of flexion.
This document discusses the biomechanics of posture. It defines posture as the relative arrangement of body parts in relation to gravity. There are static and dynamic types of posture. The biomechanics of posture involves analyzing the kinetics and kinematics of all body segments. Perfect posture reduces stress on muscles and joints. However, the erect human posture is less stable than quadrupedal postures due to a smaller base of support and the location of the center of gravity being further from the base. Proper balance and control of posture depends on compensating for forces from gravity and maintaining stability of individual body segments and the whole body.
Thoracic and rib cage anatomy, biomechanics, and pathomechanicsRadhika Chintamani
The document discusses the biomechanics of the thorax and chest wall. It describes the anatomy of the rib cage including the various joints that connect the ribs to each other and to the sternum and vertebrae. It also discusses the muscles involved in respiration including the diaphragm and accessory muscles. It explains the axes of motion of the ribs during breathing and how this affects the diameters of the thorax. Finally, it covers topics such as the forces and loading on the thoracic spine during respiration and the concept of dynamic equilibrium.
The document discusses the biomechanics of sit-to-stand (STS) movement. STS is an important daily activity that requires moving the center of mass from a stable seated position to an unstable standing position. It involves four phases - flexion momentum, momentum transfer, extension, and stabilization. Kinematics include pelvic tilt, trunk extension, hip and knee flexion/extension. Kinetics involve using leg, back and arm muscles to generate momentum to rise from sitting to standing and stabilize in the upright position. Proper timing and coordination of body segments is important for effective STS.
BIOMECHANICS AND PATHOMECHANICS OF THORACIC SPINE.pptxTabassum Saher
The thoracic spine has 12 vertebrae from T1 to T12 that are larger than cervical vertebrae. Each thoracic vertebra has a vertebral body, pedicles, lamina, transverse processes, and superior and inferior articular facets. The thoracic spine has a slight kyphotic curve and vertebrae articulate with ribs. Biomechanically, the thoracic spine experiences increased compression due to body weight and its shape. Its joints allow limited flexion/extension from T1-T6 and more from T7-T12. Rotation occurs between ribs and vertebrae at costovertebral joints.
This document provides an overview of the biomechanics of the knee complex. It describes the anatomy of the tibiofemoral and patellofemoral joints, including the femoral condyles, tibial plateaus, and alignment of the femur and tibia. It also discusses how weight-bearing forces are distributed between the medial and lateral compartments during activities like standing, walking, and with conditions like genu valgum or genu varum. The complex biomechanics of the knee allow for both mobility and stability through interactions of its bones, cartilage, ligaments and muscles.
The thoracic spine consists of 12 vertebrae located between the cervical and lumbar regions. Each thoracic vertebra has a heart-shaped body with demi-facets that articulate with the ribs. They also have transverse processes with costal facets that connect to the ribs. The thoracic region has a natural kyphotic curvature and supports the rib cage. Common spinal conditions that affect the thoracic region include kyphosis, Scheuermann's disease, flat back, and thoracic scoliosis.
This document discusses the biomechanics of the hip joint. It begins by defining biomechanics and describing the mobility and stability of the hip. It then discusses forces acting on the hip like body weight, abductor muscles, and joint reaction forces. It explains how these forces are balanced in different positions like two-leg stance, single-leg stance, and with the use of a cane. The document concludes by discussing implications for conditions like coxa valga and coxa vara, and principles of total hip replacement surgery.
This document describes the anatomy of the hip joint, including its movements, muscles, and actions. The hip joint is a weight-bearing ball and socket joint where the femur head articulates with the acetabulum. It allows for flexion, extension, abduction, adduction, and medial/lateral rotation. The major hip flexors are the iliopsoas, rectus femoris, and sartorius. The gluteus maximus and hamstrings are the primary extensors. Abduction is performed by the gluteus medius and minimus. Lateral rotation is carried out by the superior and inferior gemelli, piriformis, obturator internus/externus
3. biomechanics of Patellofemoral jointSaurab Sharma
The patellofemoral joint is one of the most incongruent joints in the body. It depends on static structures like the lateral lip of the femoral condyle and the length of the patellar tendon for stability. Forces through the joint increase significantly during activities like squatting or ascending stairs. Pathologies of the patellofemoral joint can include osteoarthritis, ligament injuries, meniscal tears, and patellofemoral pain syndrome resulting from an imbalance of forces through the joint.
2. biomechanics of the knee joint artho, osteoSaurab Sharma
The document discusses biomechanics of the tibiofemoral joint, including osteokinematics (bone motions), arthrokinematics (joint motions), and the automatic locking/screw home phenomenon. It describes the two degrees of freedom of motion as flexion-extension along a migrating axis and internal-external rotation along a vertical axis. Arthrokinematics involve gliding and rolling motions of the femoral condyles on the tibia during extension. The automatic locking occurs through lateral rotation of the tibia on the femur during the last 30 degrees of extension, increasing joint stability.
This document discusses the biomechanics of the knee joint, including its structure, stability mechanisms, and kinetics. It describes the knee as a complex hinge joint made up of the femur, tibia, and patella. Key stabilizing structures include the collateral and cruciate ligaments, menisci, and surrounding muscles. The document outlines the knee's degrees of freedom and range of motion, including screw-home rotation. It also analyzes the forces acting on the knee during activities like walking, cycling, and squatting using free body diagrams and dynamic analysis.
This document provides an overview of the anatomy of the knee joint. It describes the bones that make up the knee (femur, tibia, patella). It then discusses the tibiofemoral joint and patellofemoral joint. It provides details on the degrees of freedom in the knee joint and the ligaments, menisci, and other structures that are involved in the knee joint.
This document summarizes the biomechanics of the hip joint. It describes the bony anatomy including the femoral head, acetabulum, and labrum. It also discusses the capsule, ligaments including the iliofemoral, pubofemoral, and ischiofemoral ligaments. Muscles that act on the hip joint and the ranges of motion are outlined. Factors affecting hip joint stability and weight transmission through the joint are summarized. Pathomechanics related to variations in the neck shaft angle and angle of torsion are covered.
The foot is a complex biomechanical structure that must provide both stability and mobility. It is composed of 26 bones arranged in 3 sections - the rearfoot, midfoot, and forefoot. The main joints of the foot include the subtalar, transverse tarsal, tarsometatarsal, metatarsophalangeal, and interphalangeal joints. These joints allow for pronation, supination, and a metatarsal break during gait to absorb shock and efficiently propel the body forward. The foot's unique bone structure and motion are finely tuned to support weight-bearing activities while accommodating varied surfaces.
The document provides information on the biomechanics of the cervical spine. It discusses the vertebrae, ligaments, joints, motions, forces, and muscles involved. Key points include that the atlantoaxial joint allows rotation, the atlantooccipital joint allows flexion and extension, and lateral flexion is coupled with rotation. Degenerative changes from aging can cause conditions like cervical spondylosis or radiculopathy by reducing the disc space and increasing pressure on nerves. Maintaining healthy discs is important for protecting spinal structures.
The document summarizes the anatomy and function of the knee joint. It describes the articulating surfaces of the patella and femur, the muscles that act on the knee joint as flexors, extensors, and rotators, and how the angle of pull of the quadriceps femoris muscle is increased by the patella acting as a pulley. It also discusses the Q-angle and how increased or decreased angles can impact patellofemoral contact pressures.
1) The sit-to-stand movement involves raising the body from a sitting to standing position and requires coordination of limbs to transfer weight while maintaining balance.
2) Individuals with knee osteoarthritis display different movement strategies during sit-to-stand, such as greater muscle co-contraction, earlier hamstring activation, and reduced hip and knee range of motion.
3) Altered movement strategies in osteoarthritis are thought to compensate for pain and weakness, helping to accomplish the task while protecting the affected knee joint.
The document discusses the biomechanics of the knee joint, including the tibiofemoral joint and patellofemoral joint. It covers the articulating surfaces, degrees of freedom, ligaments, muscles, alignment and weight bearing forces of the knee. It also discusses normal patellar tracking in the trochlear groove during range of motion and the changing contact areas between the patella and femur through different degrees of flexion.
This document discusses the biomechanics of posture. It defines posture as the relative arrangement of body parts in relation to gravity. There are static and dynamic types of posture. The biomechanics of posture involves analyzing the kinetics and kinematics of all body segments. Perfect posture reduces stress on muscles and joints. However, the erect human posture is less stable than quadrupedal postures due to a smaller base of support and the location of the center of gravity being further from the base. Proper balance and control of posture depends on compensating for forces from gravity and maintaining stability of individual body segments and the whole body.
Thoracic and rib cage anatomy, biomechanics, and pathomechanicsRadhika Chintamani
The document discusses the biomechanics of the thorax and chest wall. It describes the anatomy of the rib cage including the various joints that connect the ribs to each other and to the sternum and vertebrae. It also discusses the muscles involved in respiration including the diaphragm and accessory muscles. It explains the axes of motion of the ribs during breathing and how this affects the diameters of the thorax. Finally, it covers topics such as the forces and loading on the thoracic spine during respiration and the concept of dynamic equilibrium.
The document discusses the biomechanics of sit-to-stand (STS) movement. STS is an important daily activity that requires moving the center of mass from a stable seated position to an unstable standing position. It involves four phases - flexion momentum, momentum transfer, extension, and stabilization. Kinematics include pelvic tilt, trunk extension, hip and knee flexion/extension. Kinetics involve using leg, back and arm muscles to generate momentum to rise from sitting to standing and stabilize in the upright position. Proper timing and coordination of body segments is important for effective STS.
BIOMECHANICS AND PATHOMECHANICS OF THORACIC SPINE.pptxTabassum Saher
The thoracic spine has 12 vertebrae from T1 to T12 that are larger than cervical vertebrae. Each thoracic vertebra has a vertebral body, pedicles, lamina, transverse processes, and superior and inferior articular facets. The thoracic spine has a slight kyphotic curve and vertebrae articulate with ribs. Biomechanically, the thoracic spine experiences increased compression due to body weight and its shape. Its joints allow limited flexion/extension from T1-T6 and more from T7-T12. Rotation occurs between ribs and vertebrae at costovertebral joints.
This document provides an overview of the biomechanics of the knee complex. It describes the anatomy of the tibiofemoral and patellofemoral joints, including the femoral condyles, tibial plateaus, and alignment of the femur and tibia. It also discusses how weight-bearing forces are distributed between the medial and lateral compartments during activities like standing, walking, and with conditions like genu valgum or genu varum. The complex biomechanics of the knee allow for both mobility and stability through interactions of its bones, cartilage, ligaments and muscles.
The thoracic spine consists of 12 vertebrae located between the cervical and lumbar regions. Each thoracic vertebra has a heart-shaped body with demi-facets that articulate with the ribs. They also have transverse processes with costal facets that connect to the ribs. The thoracic region has a natural kyphotic curvature and supports the rib cage. Common spinal conditions that affect the thoracic region include kyphosis, Scheuermann's disease, flat back, and thoracic scoliosis.
This document discusses the biomechanics of the hip joint. It begins by defining biomechanics and describing the mobility and stability of the hip. It then discusses forces acting on the hip like body weight, abductor muscles, and joint reaction forces. It explains how these forces are balanced in different positions like two-leg stance, single-leg stance, and with the use of a cane. The document concludes by discussing implications for conditions like coxa valga and coxa vara, and principles of total hip replacement surgery.
This document describes the anatomy of the hip joint, including its movements, muscles, and actions. The hip joint is a weight-bearing ball and socket joint where the femur head articulates with the acetabulum. It allows for flexion, extension, abduction, adduction, and medial/lateral rotation. The major hip flexors are the iliopsoas, rectus femoris, and sartorius. The gluteus maximus and hamstrings are the primary extensors. Abduction is performed by the gluteus medius and minimus. Lateral rotation is carried out by the superior and inferior gemelli, piriformis, obturator internus/externus
The document discusses hip joint anatomy and biomechanics from the perspective of total hip arthroplasty. It describes key terms like kinematics and kinetics. It provides details on normal ranges of motion for the hip. It discusses femoral head anatomy and the forces acting on the hip during single leg stance, which can be up to 4 times body weight. Factors like leg length, weight, and abductor lever arm influence joint loading.
The hip joint is a ball and socket joint that connects the femur to the pelvis. It has an articular capsule and several ligaments that provide stability. Important anatomical structures near the hip joint include nerves, blood vessels, and bursae. The hip allows flexion, extension, abduction, adduction, internal and external rotation. Examination of the hip evaluates gait, range of motion, special tests like Trendelenburg sign, and imaging may be used.
The document discusses principles of joint mobilization including using lower grades to reduce pain and higher grades to increase mobility. It outlines convex-concave rules for determining glide direction in different joints. Treatment glides are described to improve range of motion in various joints like the shoulder, knee, ankle and elbow. Open-packed positions and grades of movement are also defined. The goal of a joint mobilization treatment is to increase range of motion through appropriate gliding techniques.
This document discusses the biomechanics of the patellofemoral joint. It describes the anatomy of the patella and its articulation with the femur. As the knee flexes and extends, the patella translates and rotates in complex motions to maintain contact within the femoral groove. The patellofemoral joint experiences high stresses from quadriceps forces, especially between 30-90 degrees of flexion when contact area is increasing. Several mechanisms help minimize stresses on the joint.
Postgraduate orthopaedics march 2015 biomechanicsnickcaplan23
The document provides an overview of orthopaedic biomechanics. It defines biomechanics as the study of mechanics in living things. Key topics covered include Newton's laws of motion, free body diagrams, kinetics, kinematics, gait analysis, and examples analyzing the hip and knee. Units of measure, forces, moments, and assumptions of biomechanical models are also discussed. Examples of gait data from healthy and osteoarthritic patients are presented to demonstrate biomechanical analysis.
The document discusses the biomechanics of the spine, including its regional structures and biomechanics. It describes the typical curves and vertebrae of the spine, as well as the intervertebral discs, ligaments, and joints. It then summarizes the specific structures, kinematics, and kinetics of the cervical and thoracic regions. The cervical region allows nodding and rotational motions and bears less weight, while the thoracic region has limited flexion/extension and increased compression forces due to its kyphotic shape.
1. biomechanics of the knee joint basicsSaurab Sharma
This document provides an overview of the biomechanics of the knee complex. It describes the knee as the largest and most complex joint, consisting of the tibiofemoral and patellofemoral joints. The knee functions to flex and extend the leg, support body weight, and facilitate locomotion. Key components include the articular surfaces, menisci, capsule, collateral and cruciate ligaments, muscles, bursae, and plicae. The document outlines the roles and mechanics of each of these structures, as well as common injuries associated with the knee.
The document discusses the muscles that act on the knee joint. It describes the seven muscles that flex the knee - the semimembranosus, semitendinosus, biceps femoris, sartorius, gracilis, popliteus, and gastrocnemius. It also discusses the four knee extensor muscles which make up the quadriceps group. Additionally, it explores how some muscles like the hamstrings and gastrocnemius act as both flexors and extensors depending on the position of other joints they cross.
The hip joint is a ball and socket synovial joint that connects the lower limb to the pelvis. It is formed by the spherical head of the femur articulating with the acetabulum of the pelvis. Strong ligaments including the iliofemoral, ischiofemoral, and pubofemoral ligaments reinforce the joint capsule to provide stability while allowing flexion, extension, abduction, adduction, and rotation movements. The hip joint has an extensive blood supply and is innervated by nerves from the lumbar plexus and sacral plexus.
This document discusses the biomechanics of the knee complex, focusing on tibiofemoral joint function and kinematics. It describes the primary motions of the knee as flexion/extension along with smaller amounts of medial/lateral rotation and varus/valgus motion. It explains how the cruciate ligaments and menisci facilitate and guide knee motion through rolling and gliding movements. The normal range of motion for flexion/extension is also outlined.
This document discusses the management of wrist and hand disorders and surgeries. It covers topics like joint hypomobility, degenerative changes, signs and symptoms of rheumatoid arthritis and osteoarthritis, goals of joint surgery, types of surgeries like wrist arthroplasty, overuse syndromes like carpal tunnel syndrome and compression of the tunnel of Guyon, tendinitis, and traumatic injuries to the wrist and hand like simple strains.
the gross antomy of the hip hoint and applied anatomy focused for undergradua...Shaifaly madan rustagi
The hip joint is a ball-and-socket joint that allows for flexion, extension, abduction, adduction, and rotation. It is formed by the articulation of the femoral head with the acetabulum. The joint is surrounded by ligaments including the iliofemoral, ischiofemoral, and pubofemoral ligaments. It is supplied by blood vessels and nerves and allows a wide range of motion important to walking and other activities. Common conditions that can affect the hip joint include fractures, developmental disorders like Perthes disease, and displacement of structures like the femoral head or greater trochanter.
This document provides an overview of biomechanics of posture. It defines static and dynamic posture and describes the major goals and elements of postural control, including maintaining the body's center of gravity over its base of support. It discusses perturbations that can disrupt posture and the compensatory muscle synergies and strategies used to regain equilibrium, such as ankle and hip synergies. The document also covers kinetics of posture involving forces like inertia, gravity and ground reaction forces. It analyzes optimal posture and deviations, and describes various postural abnormalities.
Biomechanics is the study of human movement and the forces acting on the body during motion and rest. It helps identify optimal techniques and allows skills to be broken down. The centre of gravity is the point where the body is balanced and changes based on position. The line of gravity passes through the centre of gravity to the ground. Stability depends on the line of gravity falling within the base of support, which are the contact points with the ground. Newton's laws of motion describe how forces cause and change motion. Forces must be applied optimally through large muscle groups in sequence to maximize momentum. Friction occurs between contacting surfaces and can help or hinder performance.
The document summarizes the biomechanics of the ankle joint complex. It describes the anatomy and function of the talocrural joint (ankle joint), subtalar joint, and transverse tarsal joint. The ankle-foot complex consists of 28 bones and 25 joints that allow the foot to meet stability and mobility demands through dorsiflexion, plantarflexion, pronation, and supination movements. Key bones include the talus, tibia, and fibula. Ligaments such as the deltoid and tibiofibular ligaments provide stability to the ankle mortise.
The hip joint is a ball and socket joint that connects the femur to the pelvis. It is the body's largest weight bearing joint. The rounded head of the femur fits into the cup-shaped acetabulum of the pelvis. Strong ligaments and muscles provide stability to the joint. Damage to any of the hip joint components can negatively affect its range of motion and weight bearing ability, and may require hip replacement surgery. The hip allows for flexion, extension, abduction, adduction, internal and external rotation.
The document discusses the biomechanics of the hip joint, including its structure, motions, stability mechanisms, and common injuries. The hip is a ball-and-socket joint between the pelvis and femur that allows for flexion/extension, abduction/adduction, and internal/external rotation. Stability is provided by bony configuration, cartilage, ligaments like the iliofemoral and ischiofemoral, and large muscles like the gluteals. Common injuries include fractures from direct impacts or degenerative joint disease from repeated stresses.
The document discusses the anatomy and biomechanics of the hip joint. It describes the ball and socket structure of the hip joint formed by the acetabulum and femoral head. It details the angles of the hip joint including the central edge angle and angle of anteversion. It discusses the muscles, ligaments, biomechanics including ranges of motion, and forces across the hip joint during activities like standing, walking, and squatting. Pathomechanics of conditions like hip fractures and dislocations are also mentioned.
This document provides an overview of the anatomy of the pelvis and thigh. It describes the bony anatomy including bones such as the ilium, ischium, pubis, sacrum, and femur. It also discusses articulations like the sacroiliac joint and ligaments including the iliofemoral, pubofemoral, and ischiofemoral ligaments. Additionally, it outlines the muscular anatomy including muscles like the gluteus maximus, tensor fascia latae, adductor longus, and hamstrings. Finally, it briefly touches on vascular/neuro anatomy such as the femoral triangle, femoral artery, and dermatomes.
The document describes the anatomy and movement of the pelvis and hip joint. It discusses the bones that make up the pelvis, including the ilium, ischium, pubis and sacrum. It then describes the major ligaments and joints of the pelvis and hip, including the sacroiliac, pubic symphysis and hip joints. It outlines the movements that occur at the pelvis and hip, such as flexion, extension, abduction and rotation. Key muscles that act on the pelvis and hip like the psoas major, iliacus and gluteus maximus are also identified.
The document provides information on clinical examination of the hip joint. It begins with anatomy of the hip joint and associated muscles and ligaments. It then discusses elements of history taking including pain characteristics. The physical examination section covers inspection of gait, limb posture and length, palpation of bony landmarks and muscles, range of motion testing, and special tests like Trendelenburg test. Measurements of limb length discrepancies both apparent and true are also described.
Pelvic girdle, Femur, Sacroiliac joint and Hip JointSado Anatomist
The document discusses the anatomy of the pelvic girdle and femur. It describes the bones that make up the pelvic girdle - the hip bones, pubic symphysis and sacrum. It then details the individual bones, their features and articulations. This includes the sacroiliac joint and hip joint. It also outlines the ligaments supporting these joints and the movements they allow. Finally, it lists some of the muscles involved in hip joint movement.
The document provides information about the pectoral girdle (shoulder girdle) and associated bones, joints, muscles and movements. It describes the clavicle bone, its articulations in the sternoclavicular and acromioclavicular joints. It also describes the scapula bone and its movements. Key muscles that act on the pectoral girdle and humerus are identified, including their origins, insertions and actions. The major joints of the pectoral girdle, the sternoclavicular and acromioclavicular joints, are also summarized.
Postural deviations of spine by Dr. NidhiNidhiVedawala
This document provides information on various types of spinal deformities including lordosis, kyphosis, scoliosis, and flat back posture. It discusses the potential causes, clinical presentations, and treatment approaches for each condition. Key points include that lordosis is an increased lumbar curve, kyphosis is an increased thoracic curve, scoliosis is a lateral curvature of the spine greater than 10 degrees, and flat back posture is a loss of the normal lumbar curve. Treatment generally involves stretching tight muscles, strengthening weak muscles, and posture retraining exercises. Scoliosis has multiple classifications including idiopathic, congenital, and neuromuscular causes.
The document provides an overview of the human skeletal system, including its main functions, anatomical terminology, bone locations, types of joints, and movements. It describes the 206 bones in the human body, including the 80 bones that make up the axial skeleton (cranium, vertebrae, ribs, sternum) and 126 bones of the appendicular skeleton (extremities, pelvis). Key bones, landmarks, and motions of the shoulder, arm, pelvis, thigh, leg, foot are defined.
The hip joint connects the femur to the pelvis and supports the weight of the upper body. It has a ball and socket structure, with the femoral head forming the ball and the acetabulum forming the socket. Several ligaments stabilize the hip joint, including the iliofemoral ligament which resembles an inverted Y shape. The hip joint allows flexion, extension, abduction, adduction, and rotation. Femoroacetabular impingement can occur if the femoral head or acetabulum have abnormal shapes that cause them to impinge upon each other.
The document summarizes the biomechanics of the lower extremity, including the hip, knee, ankle, and foot. It describes the bony structures, ligaments, muscles, and movements of each joint. It also discusses common injuries to these areas such as fractures, strains, ligament tears, and tendonitis. Loads and forces on the joints during various activities are explained.
This document provides an overview of major muscles in the human body, describing their origins, insertions, joints crossed, and actions. It covers muscles of the lower limb including the hamstrings, quadriceps, hip flexors and extensors, and calf muscles. It also details muscles of the shoulder girdle and shoulder joint, including rotator cuff muscles. Key back muscles like the erector spinae and muscles of the anterior abdominal wall are outlined. For each muscle or muscle group, a brief description of no more than 3 sentences is given.
This document provides an overview of biomechanics of the elbow, including its structure, function, kinematics, muscle actions, and stability mechanisms. It describes the three joints that make up the elbow complex - the humeroulnar joint, humeroradial joint, and proximal radioulnar joint. It details the motions of elbow flexion/extension and forearm pronation/supination, identifying the muscles, ligaments, and bony structures involved in each motion. Common injuries to the elbow from direct stresses and repeated stresses are also summarized.
This document provides an overview of the anatomy and examination of the hip joint. It begins with a detailed review of hip anatomy including bones, ligaments, muscles and nerves. It then discusses common hip conditions and outlines the components of a history and physical exam for the hip. The physical exam section describes how to inspect, palpate and perform range of motion and special tests on the hip including Bryant's triangle, Shoemaker's line, and tests for instability like FABER. Differential diagnoses for hip and thigh pain are also listed.
The document summarizes the anatomy of the shoulder complex, including bones, articulations, ligaments, musculature, nerves, and blood supply. It then discusses functional anatomy, common injuries such as fractures, sprains, dislocations, and impingements. It also covers the phases of throwing mechanics and notable pitchers.
12-year-old Male with Slipped Capital Femoral Epiphysis_ CurranCara Curran
This case report describes a 12-year-old male who presented to physical therapy 10 weeks post-op for an in-situ pinning procedure on his right hip due to a stable slipped capital femoral epiphysis. He had a history of hypothyroidism and obesity. Physical therapy focused on reducing pain and improving mobility, strength, and coordination through manual therapy, exercises, and neuromuscular retraining. Outcome measures showed a 72% increase on the Modified Harris Hip Score and decreased risk of injury on the Star Excursion Balance Test by the end of treatment. The report provides insight into examining and treating similar pediatric orthopedic patients.
The document discusses the anatomy and biomechanics of the hip joint. It covers the following key points in 3 sentences:
The hip joint is a ball and socket joint that allows for flexion, extension, abduction, adduction, and rotation. It connects the femur to the acetabulum of the pelvis and transmits body weight through the lower extremity. The document outlines the structural components of the hip joint including bones, ligaments, muscles, and relevant angles used to assess alignment. It also describes the motions of the hip joint and pelvis during gait and how the various hip muscles function as flexors, extensors, abductors, adductors, and rotators through their origins and insert
Lower Limb Human Anatomy ( Muscles )
by DR RAI M. AMMAR
www.facebook.com/drraiammar
www.twitter.com/drraiammar
www.instagram.com/drraiammar
www.linkedin.com/in/drraiammar
www.themedicall.com/blog/auther/drraiammar/
For Any Book or Notes Visit Our Website:
www.allmedicaldata.wordpress.com
www.drraiammar.blogspot.com
YOUTUBE CHANNEL :
https://www.youtube.com/channel/UCu-oR9V3OdFNTJW5yqXWXxA
ANY QUESTION ??
Get in touch with us at Any of the Above Social Media or Email at
drraiammar@gmail.com
allmedicaldata@gmail.com
This document provides an overview of the anatomy of the knee, including bony structures, articulations, ligaments, menisci, muscles, bursae, and neuroanatomy. Key details include a description of the femur, tibia, patella, and fibular head bones. The tibiofemoral and patellofemoral joints are discussed. Major ligaments like the ACL, PCL, MCL, and LCL are also summarized along with their functions.
Similar to Kinesiology of the hip and knee powerpoint (20)
Institutional types & practice environmentsPierre Lopez
The document describes various settings where physical therapy may be provided, including acute care hospitals for short-term treatment, primary care physician offices, specialized outpatient clinics for secondary care, high-tech hospitals for tertiary care, skilled nursing facilities for subacute care, rehabilitation hospitals, and in patients' homes through home health agencies. Physical therapists also work in school systems to help students with disabilities and may own private outpatient clinics.
Multiple sclerosis (MS) is a chronic, progressive demyelinating disease of the central nervous system. It is characterized by inflammation and scarring that damages myelin and the nerve fibers of the brain and spinal cord. Common symptoms include visual disturbances, paresthesias, weakness, fatigue, and impaired coordination and balance. While the exact cause is unknown, it is considered an autoimmune disease. Physical therapy focuses on managing symptoms like fatigue, spasticity, balance and coordination deficits through exercises, energy conservation, and mobility training. The overall goals are to reduce disability and improve quality of life.
A comprehensive report on the innervation of thePierre Lopez
The document discusses the anatomy and physiology of the urinary bladder, including its shape, muscle layers, nerve supply, and the micturition reflex which initiates urination when the bladder reaches 300ml in volume. It also covers urine formation in the kidneys and modification of the filtrate as it passes through the renal tubules via reabsorption and secretion.
This document provides information on the anatomy and physiology of the respiratory system. It discusses the major structures involved in respiration including the nose, pharynx, larynx, trachea, bronchi, lungs and pleura. It describes the mechanics of breathing including the muscles used and lung volumes. Several respiratory diseases are covered such as asthma, chronic bronchitis, emphysema and cystic fibrosis. The defining characteristics, causes, signs and symptoms and tests for each disease are outlined. Restrictive lung diseases are briefly mentioned as well.
Orthotics are devices used to support or correct deformities and impairments of the foot, ankle, knee, and hip joints. A foot orthotic is customized to fit inside the shoe to correct foot alignment. An ankle-foot orthosis (AFO) consists of a shoe attachment, ankle control, and leg band to support the ankle. A knee-ankle-foot orthosis (KAFO) adds a knee control to an AFO. The most specialized orthosis is a total hip-knee-ankle-foot orthosis (THKAFO) which incorporates a hip joint and trunk band. Orthoses are customized to meet individual functional needs and goals.
Pediatrics is the branch of medicine that deals with the health and development of children. It focuses on disturbances to growth, development or health in children. The document discusses several theories of child development including maturationist theory, empiricist theory, and Piaget's interactionist theory. It also covers motor control theories and principles of motor development in children. Finally, it discusses some common pediatric conditions like cerebral palsy and how they can affect motor skills.
This document provides information on various types of arthritides:
- Rheumatoid arthritis is an autoimmune disease that commonly affects the small joints of the hands and feet, causing pain, swelling and deformity. It is more prevalent in women.
- Osteoarthritis is a degenerative joint disease affecting weight-bearing joints. It causes pain and stiffness and can lead to bone spurs and loss of cartilage.
- Gouty arthritis is caused by deposition of urate crystals in the joints, causing sudden and severe pain. It is associated with hyperuricemia.
- Septic arthritis is a bacterial infection of the joints that requires prompt treatment to prevent permanent damage.
Spinal cord injuries can cause paralysis, sensory loss, and autonomic dysfunction below the level of injury. There are two main types - complete lesions with no preserved function below the injury, and incomplete lesions with some preserved sensation or motor function. Complications include neurogenic bladder, spasticity, autonomic dysreflexia, pressure ulcers, and orthostatic hypotension. Early rehabilitation is important to prevent further issues and maximize recovery of function.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
Assessment and Planning in Educational technology.pptxKavitha Krishnan
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
4. Hip joint
A.k.a. coxofemoral jt.
ROM
Flex 0-1200
Hypertext 0-100
Abd 0-450
Add across 30-400
ER 0-450
IR 0-350
Close-packed
Full ext, IR, Abd
5. Hip joint
Open-packed
300 flex
300 abd
Slight ER
Capsular pattern
Flex, abd, IR
End feel
Flex soft/firm
Ext firm
Abd soft/firm
Add soft/firm
IR firm
ER firm
6. End Feels
Normal:
Flexion & Adduction
Elastic or Tissue Approximation
SLR
Elastic
Extension & Abduction
Elastic/Firm
IR & ER
Elastic/Firm
7. Hip joint
Tonic labyrinthine & optical
righting reflexes
Head effectively behaves as if
it’s fixed in a vertical position
Maintains head over BOS
When hip flexor ms. Is tight,
keep LOG w/in BOS
Open-chain response =
displacement of head from
vertical (Fig. A)
Closed-chain response =
maintain head in upright
position (Fig. B)
8. Hip joint
Acetabulum of pelvis + head of femur
Diarthrodial, ball-and-socket jt. w/ 30 freedom:
flex/ext in sagittal plane
abd/add in frontal plane
IR/ER in transverse plane
10 function of hip
To support wt. of head, arms & trunk (HAT)
Also provides pathway for transmission of forces
bet. Pelvis & LEs
Hip tends to operate in a closed kinematic chain
Proximal end = head
Distal end = foot
9. Structure
Acetabulum
Concave socket
Lateral, inferior, anterior (LIA)
Roundness ↓ w/ age
Inferior = acetabular notch
Central/deepest part = acetabular fossa
Anteversion = anterior orientation of acetabulum
Men = 18.50
Women = 21.5 0
Pathologic ↑ = ↓ jt. stability, risk for anterior dislocation of
femoral head
10. Structure
Acetabular labrum
Fibrocartilage rimming entire periphery
Transverse acetabular ligament
Roof of tunnel passage for blood vessels & nerves entering hip
Has Center Edge angle (CE) or angle of Wiberg
Men = 380
Women = 350
Smaller CE angle (more vertical) = ↓ coverage of head of
femur, ↑ risk superior dislocation of femoral head
↑ w/age
12. Femur
Circular
Smaller in women
Fovea
Inferior to medial pt. of femoral
head
Attachment of ligament of
femoral head
Medially, superiorly,
anteriorly (SAM)
Neck = 5cm long
13. Femur
Angulation
Angle of inclination
(medial)
Frontal plane bet.
Femoral neck & shaft
Early infancy = 1500
Adult = 1250
Elderly = 1200
↓ in women due to width
of female pelvis
Pathologic ↑ = coxa
valga
Pathologic ↓ = coxa vara
15. Femur
Frog-leg position
FABER
True physiologic position of hip
A congruent fit under low load would lead to
incongruence under high load
Periphery of acetabulum in contact, fossa is non-
articular
16. Hip capsule & ligaments
capsule has major contribution to
stability
femoral neck = intracapsular
greater & lesser trochanters =
extracapsular
thickened anterosuperiorly
thin & loose posteroinferiorly
Iliofemoral ligament
Y ligament of Bigelow
Origin = AIIS
2 arms fan out to insert = intertrochanteric
line of femur
Strongest ligament of hip
Taut in hyperextension
Superior fibers taut in adduction
Inferior tense during abduction
17. Hip capsule & ligaments
Pubofemoral ligament
Origin = anterior pubic ramus
Insertion = anterior intertrochanteric
fossa
Taut in hip abd & ext
Ischofemoral ligament
Origin = posterior acetabular rim,
acetabulum labrum
Insertion = spiral around femoral
neck
Spiral fibers taut during ext, loosen
in flex
18. Hip capsule & ligaments
Position of stability
Full extension of hip
Position of vulnerability
Flex & add (such as sitting
w/thighs crossed)
Ligamentum teres
Triangular
Ligament of head of femur
19. Wt. bearing @ hip joint
Medial trabecular system
Medial cortex of upper femoral shaft
Vertically oriented
Medial accessory system is @ medial aspect of upper femoral
shaft & fans out to greater trochanter
Lateral trabecular system
Lateral cortex of upper femoral shaft
Responds to forces created during contraction of abductors &
tendency of head/neck to bend as wt. is accommodated
Lateral accessory trabecular system runs parallel w/ greater
trochanter
Zone of weakness
Thin trabeculae, do not cross each other
@ femoral neck
20. Arthrokinematics
Movement of convex femoral head on concave
acetabulum
Femoral head glides opposite motion of distal femur
Flex = Head spins posterior
Ext = anterior spin
When wt. bearing
Femur fixed, concave acetabulum moves over convex femoral
head
Acetabulum glides in same direction
21. Hip Mobilization
Flexion: Femur rolls superior & glides inferiorly on pelvis
Extension: Femur rolls inferior & glides superior on
pelvis
Abduction: Femur rolls lateral/superior & glides inferior
on pelvis
Adduction: Femur rolls medial/inferior & glides superior
on pelvis
Internal Rotation: Femur rolls medial & glides lateral on
pelvis
External Rotation: Femur rolls lateral & glides medial on
pelvis
22. Osteokinematics
Flexion = 900 w/ knee extended
Normal gait on level ground requires
300 hip flexion
100 hyperextension
50 abd/add/IR/ER
Anterior pelvic tilt
Sagittal plane
Hip flexion
ASIS anteriorly & inferiorly, symphisis down
23. Osteokinematics
Posterior pelvic tilt
Hip extension
Symphisis pubis up
Posterior pelvis closer to femur
Lateral pelvic tilt
Frontal plane
One hip joint serves as pivot/axis
Opposite iliac crest elevates (hip hike) or drop (pelvic drop)
Reference is side farthest from supporting hip
Pelvic rotation
Transverse plane
Occurs in single-limb support around axis of supporting hip jt.
Forward rotation
Side opposite supporting hip moves anteriorly
Backward rotation
Side opposite supporting hip moves posteriorly
24. Osteokinematics
Lumbar-Pelvic Rhythm
Open-chain
E.g. reaching the floor
Hip flexion up to 900 only
Anterior tilt of pelvis on femurs
Flexion of lumbar spine adds 450
E.g. side-lying abduction
Lateral tilt of pelvis & lumbar spine adds 450
Closed chain response to motions of pelvis
Keeps one or both feet on the ground
Maintain head upright & vertical
Anterior pelvic tilt during hip flexion = head & trunk displaced
forward + lumbar extension
Posterior pelvic tilt + lumbar flexion to keep head forward over
sacrum
25. Osteokinematics
pelvic motion co-hip motion
compensatory
lumbar
anterior tilt hip flex lumbar ext
posterior tilt hip ext lumbar flex
lateral tilt (drop) right hip add right lateral flex
lateral tilt (hike) right hip abd left lateral flex
forward rot right hip IR rotation to left
backward rot right hip ER rotation to right
26. Hip jt. Musculature
Flexors
10
Iliopsoas
O = iliac fossa, lateral sacrum,
IVD & bodies of T12-L4
vertebra, transverse process
of L1-L5
I = lesser troch
Rectus femoris
O = AIIS
I = tibial tuberosity
Hip flexion w/knee flexed
27. Hip jt. Musculature
Tensor fascia lata
O = anterolateral lip of iliac crest
I = iliotibial band
Abd, IR femur
Maintain tension @ iliotibial band (relieves stress
on femur)
Sartorius
Straplike
O = ASIS
I = upper medial tibia
Flex & abduct hip in either knee flex/ext
28. Hip jt. Musculature
20 = 40-500 flexion
Pectineus
Adductor longus
Adductor magnus
Gracilis
29. Hip jt. Musculature
Adductors
Pectineus
O = superior ramus pubis
I = femur, below lesser troch
Medial to iliopsoas
Adductor brevis, longus &
magnus
O = inferior ramus & body pubis
I = linea aspera
Anteromedially located
Gracilis
O = symphysis pubis
I = medial surface tibial shaft
30. Hip jt. Musculature
Extensors
Gmax
O = sacrum, dorsal sacroiliac
ligaments, ilium
I = superior fibers into iliotibial
band, inferior fibers into gluteal
tuberosity
Hamstrings
O = ischial tuberosity
I = biceps femoris into head of
fibula, Semimem & ten into medial
tibia
31. Hip jt. Musculature
Abductors
Gluteus medius
O = lateral wing of ilium
I = greater troch
Anterior fibers flex & IR
Posterior ext & ER
All abduct
Gluteus minimus
O = outer ilium
I = greater troch
Stabilize pelvis in unilateral stance
32. Hip jt. Musculature
Lateral Rotators = all insert into greater
troch
Obturator internus
O = inside of obturator foramen
Obturator externus
Close to gemelli
Gemellus superior
O = ischial spine
Gemellus inferior
@ inferior border of obturator internus
Quadratus femoris
O = Ischial tuberosity
I = posterior femoral head
Piriformis
O = anterior sacrum
Superior to sciatic nn
33. Hip jt. Musculature
Medial rotators
Anterior gluteus medius
Tensor fascia lata
34. Hip jt. Pathology
Arthrosis
OA
Tissue changes in aging
Fx
Due to abnormal ↑ of magnitude of force or weakening of bone
Usually @ zone of weakness
Femoral neck
Bony abnormalities of femur
Coxa valga
Functionally weakened abductors
↓ hip stability
Predispose to hip dislocation
35. Hip jt. Pathology
Coxa vara
↑ hip stability
Femoral head deeper in acetabulum
↑ risk for femoral neck fx
Slipped capital femoral epiphysis = slide femoral head inferiorly
Retroversion
stable
Out-toeing
Anteversion
Unstable, predispose to andterior dislocation of head of femur
In-toeing
Hip abductors fall posterior, functionally weak
Paraplegia
Y ligament permits standing balance when knee & ankle
stabilized w/ orthosis
38. Knee Joint
3 bones
Femur, tibia, patella
3 articulating surfaces
Medial tibiofemoral, lateral tibiofemoral, patellofemoral all
enclosed in the joint capsule
Mobility is primarily by the bony structure
Stability is primarily by the soft tissues
* the knee complex is responsible for moving and
supporting the body in sitting and squatting activities and
for support for transfers and locomotive activities
39. Knee Joint
A double condyloid joint with 2degrees of freedom
Flexion and extension / Medial and lateral rotation
0-120-150 degrees for flexion; Hyperextension 15 degrees
40. Ligamentum
patellae
Continuation of the tendon of the
quadriceps femoris muscle
Attached above to the lower
border of the patella and below to
the tubercle of the tibia
Gives the patella is mechanical
leverage
41. Lateral Collateral Ligament
Aka fibular collateral ligament
Cordlike structure attached to the lateral condyle of the
femur and below to the head of the fibula
Separated from the lateral semilunar cartilage by the
tendon of popliteus muscle
Taut during full knee extension & slack during full knee
flexion
Protects the lateral side from an inside bending force (a
varus force).
42. Stabilizing role of the
lateral collateral ligament
Primary restraint to
adduction of the knee
Secondary restraint to
anterior and posterior
drawer, when the drawer
displacements are large.
Combined with the other
lateral structures the
lateral collateral ligament
is a significant restraint to
external rotation of the
tibia.
43. Medial Collateral Ligament
Flat band that is attached above the medial condyle of the
femur and below to the medial surface of the shaft of the tibia
Strongly attached to the medial semilunar cartilage
Taut during full knee extension and slack during full knee
flexion
Composed of three groups of fibers, one stretching between
the two bones, and two fused with the medial meniscus.
Partly covered by the pes anserinus and the tendon of the
semimembranosus passes under it
Protects the medial side of the knee from being bent open by
a stress applied to the lateral side of the knee (a valgus
force).
44. Medial collateral ligament
functional units
The medial collateral
ligament is the primary
restraint to abduction and
internal tibial rotation.
Secondary role of MCL:
Provides anterior knee
stability, which is enhanced
by external tibial rotation.
With anterior cruciate
disruption the medial
collateral ligament provides
most of the anterior stability
of the knee.
45. Oblique Popliteal Ligament
Tendinous expansion of the semimembranosus muscle
Strengthens the back of the capsule
46. Anterior Cruciate Ligament
Attached below to the anterior intercondylar area of the tibia
Courses superiorly, posteriorly & laterally; attaches to the
lateral femoral condyle
Prevents anterior dislocation of the tibia on a fixed femur or
prevents posterior dislocation of the femur on a fixed tibia
Checks lateral rotation of the tibia in flexion and to a lesser
extent, check extension & hyperextension at the knee
Helps to control the normal rolling and gliding movement of
the knee
Anteromedial bundle is taut in both flexion & extension, while
the posterolateral bundle is taut on extension only
47. ACL:
Primary restraint to anterior
translation of the tibia and
contributes the most at 30°
flexion.
-Prevents hyperextension of
the knee
- Secondary restraint to
internal tibial rotation
- Resists adduction and
abduction at full extension
- 'guides' the screw home
rotation of the knee joint as it
approaches terminal
extension
48. Posterior Cruciate Ligament
Attached below to the posterior intercondylar area of the
tibia
Courses superiorly, anteriorly and medially; attaches to
the medial femoral condyle
Stoutest ligament in the knee
Prevents posterior dislocation of the tibia on a fixed
femur or prevents anterior dislocation of femur on a fixed
tibia
Checks extension & hyperextension, and in addition,
helps to maintain rotary stability and functions as the
knee’s central axis of rotation
Bulk of the fibers are tight at 30 degrees flexion and the
posterolateral fibers are loose in early flexion
49. PCL:
Primary restraint
posterior translation of
tibia
Secondary restraint
external tibial rotation
at 90° flexion, which
reduces upon knee
extension
Near full knee extension, the
anterior bundle of the PCL
slackens, and the
posterolateral structures
become the primary restraint.
51. Meniscofemoral Ligaments
The ligaments of Humphrey and Wrisberg are
meniscofemoral ligaments which run from the
posterior horn of the lateral meniscus to the lateral
aspect of the medial femoral condyle
The anterior meniscofemoral ligament is known as
the ligament of Humphrey
The posterior meniscofemoral ligament is known as
the ligament of Wrisberg
In about 70 % of knees, there is either anterior
meniscofemoral ligament of Humphrey or posterior
meniscofemoral ligament of Wrisberg
52. Humphrey ligament: (anterior meniscofemoral)
is less than 1/3 the diameter of the PCL
arises from the posterior horn of the lateral meniscus,
runs anterior to the to the PCL and inserts at the distal
edge of the femoral PCL attachment
Wrisberg's ligament: (posterior
meniscofemoral)
usually larger than ligament of Humphrey (upto 1/2 the
diameter of the PCL diameter)
extends from the posterior horn of lateral meniscus to
medial femoral condyle
53. Semilunar Cartilages (Menisci)
Sheets of fibrocartilage with a thick peripheral
convex border and a thin inner concave border
which is attached to the capsule
Upper surfaces are in contact with the femoral
condyles and the lower surfaces are in contact with
the tibial condyles
Increase the congruency of the tibiofemoral
articulations & distribute the pressure
Lateral meniscus is “O” shaped
Medial meniscus is “C” shaped and is thicker
posteriorly than anteriorly
55. Meniscal biomechanics and
Functional anatomy
Medial meniscus has a firm bond
to MCL
Lateral meniscus has no
attachment to LCL
Because the popliteus tendon
attaches to the posterolateral
corner of the lateral meniscus,
there is some additional mobility
and decreased vascularity in this
location.
The transverse ligament joins the
anterior horns of the two menisci.
56. Synovial Membrane
Lines the capsule
Forms a pouch that extends up beneath the
quadriceps femoris to form the suprapatellar
bursa, anteriorly
Extends downward on the tendon of the
popliteus muscle forming the popliteal bursa,
posteriorly
57. Bursa Related to the Knee Joint
Suprapatellar Bursa
Lies beneath the quadriceps muscle
Largest bursa and always communicates with
the knee joint
Prepatellar Bursa
Lies between the patella and the skin
Infrapatellar Bursa
Superficial infrapatellar bursa: lies between the
ligamentum patellae & the skin
Deep infrapatellar bursa: lies between the
ligamentum patellae and the tibia
59. Popliteal Bursa
Surround the tendon of the popliteus; always
communicates with the joint cavity
Semimembranosus Bursa
Lies between the tendon of this muscle and the
medial condyle of the tibia
May communicate with the joint cavity
60. The Screw Home Mechanism
Refers to the terminal external rotation of the leg at the last 20
degrees of extension due to unequal condylar configuration,
muscle torque action & ligamentous guidance
During the last 20 degrees of knee extension, the tibia
externally rotates about 20 degrees on the fixed femur
Also called the terminal rotations of the knee
In closed kinematic chain motion, terminal rotation is seen as
internal rotation of the femur on the fixed tibia
In open kinematic chain motion, terminal rotation is seen as
the external rotation of the tibia on a fixed femur
Rotation between the tibia and femur occurs automatically
between full extension (0˚) and 20˚ of knee flexion. These
figures illustrate the top of the right tibial plateau as we look
down on it during knee motion.
62. During the last 20
degrees of knee
extension, anterior
tibial glide persists on
the tibia's medial
condyle because its
articular surface is
longer in that
dimension than the
lateral condyle's.
64. The Screw Home Mechanism
Reverses during knee
flexion
When the knee begins
to flex from a position
of full extension,
posterior tibial glide
begins first on the
longer medial condyle.
65. Between 0 deg.
extension and 20 deg.
of flexion, posterior
glide on the medial
side produces relative
tibial internal rotation,
a reversal of the
screw-home
mechanism.
66. Closed Kinematic Chain Motion
Aka proximal-on-distal segment kinematics
A series of segment link motion with the distal end fixed
on the ground or some immovable point e.g. standing
up, squatting down
Open Kinematic Chain Motion
Aka distal-on-proximal segment kinematics
A series of segment link motion with the distal end free in
space e.g. raising lower leg, throwing a ball
Kinematics
A branch of mechanics that describe the position and
motion of body in space, without regard to the forces or
torques that may produce the motion
67. Osteokinematics
Normal ROM: Flexion >130 Rotation: 10
OPP: 25 flexion
CPP: Maximal Extension &tibial external rotation
Normal End feels
Flexion: Tissue approximation
Extension: Elastic/Firm
SLR: Elastic
*Femoral condyles begin to contact the patella inferior at 20 of
knee; flexion; progresses superior at 90 & medial/lateral at 135
of knee flexion
68. Arthrokinematics
Concave Surface: Tibial Plateau
Convex Surface: Femoral Condyles
To facilitate extension:
OKC: tibia rolls and glides anterior on femur
CKC: femur rolls anterior and glides posterior on the tibia
To facilitate knee flexion:
OKC: tibia rolls & glides posterior on the femur
CKC: femur rolls posterior and glides anterior on the tibia
75. Vastus Medialis
Plays an important role in
keeping the patella on track in
gliding on the femoral condyles
(tracking mechanism)
76. Vastus Medialis Oblique
The medially directed
forces of the VMO
counteract the laterally
directed forces of the
vastus lateralis, thus
preventing lateral
displacement of the
patella in the trocklear
groove
78. Popliteus
Considered as knee flexor
but has a poor leverage for
this motion
Medially rotates the tibia on
the femur to initiate
unlocking of the flexed knee
79. Quadriceps Muscles
When coming to standing from
sitting position, these act
concentrically to extend the
knee
When coming to sitting from
standing position, these act
eccentrically to control the rate
of knee flexion
81. Knee Alignment & Deformities
Tibio-femoral shaft angle is seen anteriorly on an
extended knee which is about 170 degrees in a
normal adult
Genu Valgum or Knock Knee: refers to an angle
that is less than 170-165 degrees >195 if ant
Genu Varum or Bowleg: refers to an angle that
approaches 180 degrees or greater <180 if ant
Q Angle: an angle formed by the tendons of the
quadriceps femoris and ligamentum patellae; N= 15˚
Genu Recurvatum: an excessive hyperextension
that develops from weight bearing on an unstable
knee