The document discusses the biomechanics of the hip joint. It covers anatomy including the ball and socket structure, range of motion, and forces acting across the joint. During single leg stance, the abductor muscles must generate a force of approximately 2.5 times body weight to counter the torque from body weight and maintain stability. Total joint reaction force during single leg stance is approximately 4 times body weight. The document also discusses applications of biomechanics principles to total hip arthroplasty, including techniques for reducing joint reaction forces such as increasing femoral offset.
this slideshow describes about the hip joint anatomy, biomechanics and its pathomechanics along with angles of hip joint. the slide show also briefs about the pelvic femoral rhythm in daily activities
Femoral Head (Superiorly, Medially, Anteriorly).
Acetabulum (Inferiorly, Laterally, Anteriorly).
Horseshoe-shaped (Acetabular Notch).
The deepest portion (Acetabular Fossa).
Labrum Acetabular:
Is a wedged fibrocartilaginous ring inserted into the acetabular rim to increase the acetabular concavity.
Includes detailed description of BIOMECHANICS & PATHOMECHANICS OF KNEE JOINT AND PATELLOFEMORAL JOINT with recent evidences . Hope you find it useful!!
this slideshow describes about the hip joint anatomy, biomechanics and its pathomechanics along with angles of hip joint. the slide show also briefs about the pelvic femoral rhythm in daily activities
Femoral Head (Superiorly, Medially, Anteriorly).
Acetabulum (Inferiorly, Laterally, Anteriorly).
Horseshoe-shaped (Acetabular Notch).
The deepest portion (Acetabular Fossa).
Labrum Acetabular:
Is a wedged fibrocartilaginous ring inserted into the acetabular rim to increase the acetabular concavity.
Includes detailed description of BIOMECHANICS & PATHOMECHANICS OF KNEE JOINT AND PATELLOFEMORAL JOINT with recent evidences . Hope you find it useful!!
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
2024.06.01 Introducing a competency framework for languag learning materials ...
BIOMECHANICS OF HIP JOINT
1. BIOMECHANICS OF HIP JOINT
MODERATOR: DR SUNIL.G. KINI
PRESENTER: DR MAHESH RAWAT
2. # ANATOMY OF HIP JOINT
# BIOMECHANICS OF HIP JOINT
# HISTORY
# APPLIED BIOMECHANICS IN THA
3. HIP JOINT
• Articulation of acetabulum of pelvis and head of
femur .
• Diarthroidal ball and socket joint.
• Three degree of motion:
1- flexion and extension ( sagittal plane )
2-abduction and adduction (frontal plane)
3-rotation ( transverse plane)
4. • Primary function of hip joint is to support
weight of head , arms , trunk (HAT) both in
static erect posture and dynamic postures like
ambulation, running and stair climbing.
25. WHAT IS BIOMECHANICS?????
• BIO + MECHANICS
(ANATOMY+PHYSIOLOGY) (ENGENERNING)
• SCIENCE THAT EXAMINES FORCE ACTING UPON AND
WITHIN A BIOLOGICAL STUCTURE AND EFFECTS
PRODUCED BY SUCH FORCES
31. TORQUE ( MOMENT) IS TENDENCY OF A FORCE TO
ROTATE A BODY AROUND AN AXIS
TORQUE (MOMENT)=FORCE X DISTANCE
1. Body weight moment = 3D × W
2. Abductor moment = W’ × D
• To level the pelvis
3D × W = W’ × D
so, hence W’ = 3W
• Force to balance pelvis on a single
leg stance. (Real ratio is around 2.5)
32. TO MAINTAIN STABLE HIP , TOURUE PRODUCE BY BODY
WEIGHT IS COUNTERED BY ABDUCTOR MUSCLES PULL
33. • M × a = K × b
as ,b>a so M>K
• joint forces range of
2.3–4.6 BW For one-
legged stance.
35. BIPEDAL STANCE
• BW is equally
distributed across both
hips.
• No muscular forces
require to maintain
equilibrium
• Each hip carries one-
third of BW
36. SINGLE LEG STANCE
• Hip is assumed to be in
the resting position at
one-legged stance
• Only abductors acting at
30 degree are active.
37. -
-The weight supported in single leg stance = 5/6
(total body weight – weight of one lower limb).
-COG shifts to the non supportive leg and produce
downward force to tilt pelvis
-Supportive leg abductors exert downward counter
balancing force with hip joint acts as fulcrum
38. • For hip to remain static
the sum of forces should
be zero, so
• R’ – (M + K) = 0
(R’ is joint reaction force
acting at 30 degree)
- M=2.5k
• R’ = 3.5K
• R = R’/cos θ = R’/cos
30degree
(R is joint reaction force)
• R = 4K ≈ 4 BW
46. DECREASE JOINT REACTION FORCE
Increase ratio of A/B (shift center of hip medially)
1.Acetabular component shifted medially
2.Femoral side:
-Increasing offset of femoral component
-Long stem prosthesis
-Varus neck shaft angle
-Lateralization of of greater trochanter
47. 3.PATIENT GAIT
Shifting body weight over
affected hip-REDUCING
THE LEVER ARM OF THE
BODY WEIGHT
(POSITIVE
TREDLENGBURG GAIT)
48. 4.CANE ON CONTRALATERAL HAND
FORCE IS TRANSFERED TO
WALKING STICK THROUGH THE
HAND:
1)EFFECTIVE LOAD OF BW
REDUCED
2)SO,TURNING MOMENT
AROUND FEMORAL HEAD IS
REDUCED –REDUCED
ABDUCTOR MUSCLES
DEMAND
49. 5. CARRYING LOAD IN IPSILATERAL HAND
• Additional downward moment on same side
of rotational point.
52. KINEMATICS AFTER T.H.R
• 5 FACTORS TO RESTORE THE GOALS:
(RESTORE THE FUNCTION BY RESTORING NORMAL ANATOMY)
-CENTRE OF ROTATION
-ANTEVERSION OF FEMORAL AND ACETABULAR COMPONENT
-FEMORAL OFFSET
-LEG LENGTH
-BEARING