The glenohumeral joint will be the primary subject of our attention. Ligamentous control of shoulder stability based on selective cutting and static translation experiments. Introduction the shoulder complex consists of four separate joints, which afford it incredible mobility in all planes of motion, but at the expense of its stability. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Chap5 the shoulder joint notes chapter 5 the shoulder. You can get questions on the rotator cuff, shoulder joint. Research from jama surgery biomechanics of the shoulder joint. Certain shoulder injuries result in damage to the ac joint, called separations. The shoulder joint is a ballandsocket joint between the glenoid fossa of the scapula and the head of the humerus. Shoulder motion flexion 150 1800 extension 50 600 abduction 150 1800 external rotation 900 internal rotation 70 900 horizontal abduction horizontal adduction. Its form can range from a complete septation of the suprapatellar pouch from the more inferior joint, to a band extending from the medial fat pad through the medial. The isolated shoulder is incapable of generating the. Joint position hand on hips with thumb pointing posteriorly. Chap5 chapter 5 the shoulder joint manual of structural.
A thickening of m iddle layer reinforces the axillary pouch. Chapter 5 the shoulder joint manual of structural kinesiology r. The negative intraarticular pressure creates a vacuum that pulls the. Analysis of shoulder dysfunction in throwing and overhead athletes can no longer be restricted to evaluation of the glenohumeral joint alone. Oconnell pw, nuber gw, mileski ra, lautenschlager e. Gently grasp the humerus in your other hand and move the shoulder through the range of motions described above.
In the shoulderarm complex, it is concerned with translational and rotational movements of the clavicle, scapula, and humerus and studies the forces which are transmitted to this motor system by the numerous muscles around the shoulder. The arthroscope can also be placed in the space outside the shoulder joint known as. Weightlifters and others who repeatedly lift heavy amounts of weight overhead tend to have an increased incidence of the condition, and often at a. Pulley exercises for the shoulder these exercises will help you stretch your injured shoulder. Significantly revised and updated, the new edition of this highly regarded reference on the shoulder continues to impress. Evaluation of athletes with the dts should include examination of. Conversely, when the calcaneus is inverted, the axes are no longer parallel, and there is decreased motion of the midtarsal joint due to the convergence of the axes. A patients guide to osteoarthritis of the acromioclavicular joint compliments of. Sep 07, 2015 overview of shoulder anatomy, biomechanics, and pathomechanical principles. The arthroscope can also be placed in the space outside the shoulder joint known as the subacromial bursa. Biomechanics and pathomechanics of the shoulder joint with reference to prosthetic joint replacement. Evaluation and day one day two treatment of leclab.
The shoulder s ability for multiple degrees of motion is based on the interaction of multiple structures that react to mechanical stimuli and adjust accordingly. The contribution of the glenohumeral ligaments to anterior stability of the shoulder joint. Discuss how the structures of the shoulder complex contribute. Because the glenohumeral joint is modeled as a ballandsocket joint with 3 rotational dof, the inherent problems of describing 3d rotations such as induced twist are often found in the literature for shoulder. Shoulder books shoulderdoc is proud to be able to make available some of the great out of print and rare books on the shoulder and elbow. Bio mechanics of ankle and foot foot ankle free 30day. Can be done lying down drawing a or sitting drawing b.
Shoulder girdle permits largest rom of any complex in the body shoulder girdle increases rom with less compromise of stability scapulohumeral rhythm 4 joints vs. Anterior and posterior axial rotation inferior to superior was reported by dempster to be about 60 degrees in cadaveric shoulders without the thorax. The shoulder is the most mobile joint in the body with the least stability. This convergence locks the bones of the midtarsal joint creating a rigid forefoot. After the third and fifth decades of life, approximately 30% and 80%, respectively, of patients will have rotator cuff tears duke orthopaedics, 20, the. This prospective study includes 15 consecutive righthanded male patients with shoulder apprehension 9 with right shoulder apprehension, 6 with left shoulder apprehension. C ontrary to the anterior joint capsule, the posterior is quite thin. Lecture on shoulder joint and injuries hope college. Weightlifters and others who repeatedly lift heavy amounts of weight overhead tend to have an increased incidence of the condition, and often at a younger age. Shoulder anatomy biomechanics pathomechanics youtube. Joint position shoulder 90 abducted, elbow 70 flexed, forearm semipronated. On the same film two additional exposures were made. When the ligaments that support the ac joint are completely damaged, the two bones do not line up correctly and the shoulder. Dts typically results from a cascade to injury with alterations in the kinetic chain.
The primary function of the shoulder complex is to position the upper extremity in space to allow the hand to perform its tasks. The disabled throwing shoulder dts is a general term that describes the limitations in function that exist in symptomatic overhead athletes. Shoulder joint is formed by articulation of the scapula glenoid cavity and head of the humerus glenohumeral joint 4 dr. Bio mechanics of ankle and foot free download as powerpoint presentation.
The shoulder joint the shoulder is the most flexible join t in the body mak ing it the most susceptible to instability and injury. Observations on the function of the shoulder joint. In the shoulder arm complex, it is concerned with translational and rotational movements of the clavicle, scapula, and humerus and studies the forces which are transmitted to this motor system by the numerous muscles around the shoulder. Shoulder joint glenohumeral joint 3d anatomy tutorial. A free powerpoint ppt presentation displayed as a flash slide show on id.
However, most all shoulder kinematics studies model the glenohumeral joint as a ballandsocket joint to negate these differences. The negative intraarticular pressure creates a vacuum that pulls the humerus against the glenoid. The function of the shoulder is influenced by man joints. Kinesiology is the branch of biomechanics which deals with the description and analysis of movements in the living organism. Analyze overall mechanical effects on ankle and foot during movement. Osmotic action by the synovium removes free fluid, keeping a slightly negative pressure within the normal joint.
Rehabilitation following shoulder stabilization surgery kevin e wilk, pt, dpt, fapta champion sports medicine birmingham, al i. If you continue browsing the site, you agree to the use of cookies on this website. More frequent, occur in a combination of lateral and posterior movement of the forearm resulting from a force directed laterally on the distal forearm. The elbow joint is among the most commonly dislocated major joint, second only to the shoulder. The shoulderdoc bookstore includes selected books and cdroms on the shoulder and elbow. Overview of shoulder anatomy, biomechanics, and pathomechanical principles. The biomechanics of the shoulder joint has been an active area of study for many years. Shoulder biomechanics lecture originally developed by bryan morrison, ph. A ball at the top of the upper arm bone the humerus fits neatly into a socket, called the glenoid, which is part of the shoulder blade scapula. Synovial structures plica a remnant of embryologic development, the synovial plica fig.
Normal alignment 2 changes in bony alignment following fractures. Discuss how the structures of the shoulder complex. This results in increased midtarsal joint motion by unlocking the jint. Shoulder books shoulderdoc is proud to be able to make available some of the great outofprint and rare books on the shoulder and elbow. The extremely large range of motion of the upper arm is made possible by the coordinated interaction of multiple joints, and the biomechanics of the glenohumeral joint can be studied and understood only in relation to the biomechanics of the shoulder as a whole. The shoulder has two main bones called the humerus upper arm bone and the scapula shoulder blade. I havent cover it but you need to just go through the slides when you have a minute. Review anatomy of ankle joint, foot and their functions. Biomechanics and pathomechanics of the shoulder joint with.
The distinguished lecture series in sports medicine at hope college will focus on the shoulder joint on monday, feb. Apr 06, 2016 wrist hand anatomy biomechanics pathomechanics independent study lecture duration. The wonder of the shoulder complex is the spectrum of positions that it can achieve. The ac joint is under constant stress as the arm is used overhead. From the superior part, you have the long head of biceps. Shoulder flexion assistive clasp hands together and lift arms above head. Shoulder anatomy biomechanics pathomechanics independent. The shoulder course series will include online learning modules and practical courses. Shoulder flexion assistive top of page supported shoulder rotation keep elbow in place and shoulder blades down and together. Shoulder pathomechanics musculoskeletal physical examination with chimwemwe masina slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Its form can range from a complete septation of the suprapatellar pouch from the more inferior joint, to a. Jan 24, 2004 lecture on shoulder joint and injuries.
Functional anatomy, pathomechanics, and pathophysiology of. The nature of the bony anatomy of the elbow, in particular, the subcutaneous position of the olecranon, predisposes this region to frequent. Wrist hand anatomy biomechanics pathomechanics independent study lecture duration. The axis around which movement takes chapter 2 joint anatomy and basic biomechanics figure 22 a, midsagittal plane. Ppt pathomechanics of the shoulder powerpoint presentation. It is often referred to as the shoulder joint and is ligamentously lax.
Shoulder labral pathomechanics with rotator cuff tears. Shoulder joint online learning with lecturio online. Note if there is pain, and if so which movements precipitates it. A patient s guide to osteoarthritis of the acromioclavicular. This site complies with the honcode standard for trustworthy health information.
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