The hand extends from the fingertips to the pre & post-central gyri of the parietal lobe. It is an essential tool to interact with the environment. The presence of opposable thumbs has led the human race to build countless tools, from the pre-historic hunter-gatherers to a teenager ‘texting’ around the clock.
Este documento discute a anatomia da mão, as articulações e os músculos envolvidos, e como a artrite reumatóide afeta a mão. A artrite reumatóide causa inflamação e proliferação tecidual nas articulações da mão, principalmente nas metacarpofalangeanas e interfalangeanas proximais, resultando em deformidades como "pescoço de cisne" e "dedo em gatilho". O tratamento precoce com exercícios progressivos pode ajudar a reduzir a exacerbação dos s
This document presents the case of a 17-year-old Thai woman who experienced left knee pain for 3 months following a motorcycle accident. On examination, she was found to have an anterior cruciate ligament injury and lateral collateral ligament injury in her left knee. MRI findings confirmed a grade 3 ACL avulsion fracture as well as a grade 1 medial meniscal tear. The document then reviews ACL anatomy, mechanisms of injury, clinical assessment tools, imaging modalities, treatment options including reconstruction surgery and rehabilitation.
The document provides an overview of the anatomy of the hand, including:
- The hand has 27 bones arranged to allow for rolling, spinning, and sliding motions. It includes the carpal bones, metacarpals, and phalanges.
- The hand contains several types of joints that allow for its complex motions, including radiocarpal, midcarpal, carpometacarpal, interphalangeal, and metacarpophalangeal joints.
- Ligaments like the collateral and volar plate ligaments provide stability to the wrist and hand joints. Intrinsic and extrinsic muscles allow for both fine and powerful movements of the hand and fingers.
The suprascapular nerve provides motor innervation to the supraspinatus and infraspinatus muscles. It has sensory branches innervating structures around the shoulder joint. Suprascapular nerve palsy can result from compression at the suprascapular or spinoglenoid notches, causing weakness and wasting of the supraspinatus and infraspinatus. MRI and EMG are used to identify any ganglion cysts or lesions compressing the nerve. Small cysts may resolve on their own, while larger cysts or failure to improve may require arthroscopic decompression of the suprascapular notch to release compression of the nerve. Proper surgical technique is important to address any associated pathology
1. The brachial plexus is formed by the ventral rami of cervical and upper thoracic spinal nerves, which combine to form trunks, divisions, cords, and branches that innervate the upper limb.
2. Injuries to different parts of the brachial plexus result in paralysis of specific muscles and sensory loss in dermatomal patterns, leading to deformities such as winging of the scapula or wrist drop.
3. Treatment of brachial plexus injuries involves nerve transfers, grafts, or muscle transfers to restore function, while diagnosis relies on clinical exam plus imaging studies like MRI or CT myelography.
1) Tibial plateau fractures account for 1.2% of all fractures and have a bimodal distribution, affecting young adults through high-energy trauma and the elderly through low-energy mechanisms.
2) Surgical treatment aims to decompress soft tissues, reconstruct the joint surface and maintain the mechanical axis through anatomical reduction and rigid fixation.
3) Postoperative rehabilitation focuses on early range of motion exercises and weight bearing to regain function, while avoiding complications like infection, nonunion, and post-traumatic osteoarthritis.
This document outlines general principles of arthroscopy including instruments and equipment used, anesthesia techniques, documentation methods, advantages and disadvantages of arthroscopy, indications and contraindications, basic arthroscopic techniques, and potential complications. Specifically, it describes the arthroscope, light sources, television cameras, basic instrument kits, accessory instruments like probes and scissors, implants like suture anchors, and irrigation systems. It also discusses anesthesia options, postoperative pain management, and documentation methods for arthroscopic procedures.
This document discusses radial, median, and ulnar nerve injuries. It describes the anatomy and course of each nerve, typical injury locations and mechanisms, clinical features of injuries, and classifications of nerve injuries. Treatment options are also summarized, including nerve mobilization, grafting, and surgical techniques like neurolysis and neurorrhaphy.
The hand extends from the fingertips to the pre & post-central gyri of the parietal lobe. It is an essential tool to interact with the environment. The presence of opposable thumbs has led the human race to build countless tools, from the pre-historic hunter-gatherers to a teenager ‘texting’ around the clock.
Este documento discute a anatomia da mão, as articulações e os músculos envolvidos, e como a artrite reumatóide afeta a mão. A artrite reumatóide causa inflamação e proliferação tecidual nas articulações da mão, principalmente nas metacarpofalangeanas e interfalangeanas proximais, resultando em deformidades como "pescoço de cisne" e "dedo em gatilho". O tratamento precoce com exercícios progressivos pode ajudar a reduzir a exacerbação dos s
This document presents the case of a 17-year-old Thai woman who experienced left knee pain for 3 months following a motorcycle accident. On examination, she was found to have an anterior cruciate ligament injury and lateral collateral ligament injury in her left knee. MRI findings confirmed a grade 3 ACL avulsion fracture as well as a grade 1 medial meniscal tear. The document then reviews ACL anatomy, mechanisms of injury, clinical assessment tools, imaging modalities, treatment options including reconstruction surgery and rehabilitation.
The document provides an overview of the anatomy of the hand, including:
- The hand has 27 bones arranged to allow for rolling, spinning, and sliding motions. It includes the carpal bones, metacarpals, and phalanges.
- The hand contains several types of joints that allow for its complex motions, including radiocarpal, midcarpal, carpometacarpal, interphalangeal, and metacarpophalangeal joints.
- Ligaments like the collateral and volar plate ligaments provide stability to the wrist and hand joints. Intrinsic and extrinsic muscles allow for both fine and powerful movements of the hand and fingers.
The suprascapular nerve provides motor innervation to the supraspinatus and infraspinatus muscles. It has sensory branches innervating structures around the shoulder joint. Suprascapular nerve palsy can result from compression at the suprascapular or spinoglenoid notches, causing weakness and wasting of the supraspinatus and infraspinatus. MRI and EMG are used to identify any ganglion cysts or lesions compressing the nerve. Small cysts may resolve on their own, while larger cysts or failure to improve may require arthroscopic decompression of the suprascapular notch to release compression of the nerve. Proper surgical technique is important to address any associated pathology
1. The brachial plexus is formed by the ventral rami of cervical and upper thoracic spinal nerves, which combine to form trunks, divisions, cords, and branches that innervate the upper limb.
2. Injuries to different parts of the brachial plexus result in paralysis of specific muscles and sensory loss in dermatomal patterns, leading to deformities such as winging of the scapula or wrist drop.
3. Treatment of brachial plexus injuries involves nerve transfers, grafts, or muscle transfers to restore function, while diagnosis relies on clinical exam plus imaging studies like MRI or CT myelography.
1) Tibial plateau fractures account for 1.2% of all fractures and have a bimodal distribution, affecting young adults through high-energy trauma and the elderly through low-energy mechanisms.
2) Surgical treatment aims to decompress soft tissues, reconstruct the joint surface and maintain the mechanical axis through anatomical reduction and rigid fixation.
3) Postoperative rehabilitation focuses on early range of motion exercises and weight bearing to regain function, while avoiding complications like infection, nonunion, and post-traumatic osteoarthritis.
This document outlines general principles of arthroscopy including instruments and equipment used, anesthesia techniques, documentation methods, advantages and disadvantages of arthroscopy, indications and contraindications, basic arthroscopic techniques, and potential complications. Specifically, it describes the arthroscope, light sources, television cameras, basic instrument kits, accessory instruments like probes and scissors, implants like suture anchors, and irrigation systems. It also discusses anesthesia options, postoperative pain management, and documentation methods for arthroscopic procedures.
This document discusses radial, median, and ulnar nerve injuries. It describes the anatomy and course of each nerve, typical injury locations and mechanisms, clinical features of injuries, and classifications of nerve injuries. Treatment options are also summarized, including nerve mobilization, grafting, and surgical techniques like neurolysis and neurorrhaphy.