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Elbow Ligaments

We will choose one which everyone will be familiar with—the amazing human knee joint. The knee joint is unique in our bodies. It is quite unlike the ball and socket joints of our hips or shoulders and the pivot joint of our elbows. Although those are all marvels of engineering, the knee is truly exceptional. It consists of several elements, but the critical design parts are (a) the two condyles of the femur bone that rotate in (b) the matching concave grooves of the tibia, and (c and d) the two cruciate ligaments (so called because they cross over each other) that fit in the space between the condyles. [Pg.48]

Regan, W.D., Korinek, S.L., Morrey, B.F., et al (1991) Biomechanical study of ligaments around the elbow joint. Clinical Orthopaedics Related Research, 271, 170-9. [Pg.64]

Plewes DB (1994) The AAPM/RSNA physics tutorial for residents. Contrast mechanisms in spin-echo MR imaging. Radiographics 14 1389-1404 quiz 1405-1406 Pudas T, Hurme T et al. (2005) Magnetic resonance imaging in pediatric elbow fractures. Acta Radiol 46 636-644 Rand T, Ahn JM et al. (1999) Ligaments and tendons of the ankle. Evaluation with low-field (0.2 T) MR imaging. Acta Radiol 40 303-308... [Pg.78]

The bony architecture of the elbow contributes to the stability of the joint, which is reinforced by the medial (ulnar) and lateral (radial) collateral ligaments, which provide most of the stability. [Pg.260]

A number of equivalent lesions have also been described. Commonest of these is the Type 1 variant Where the radial head is dislocated anteriorly but the ulna has plastic deformation rather than a fracture. Other variants include dislocations with associated radial neck fractures, olecranon fractures and dislocations of the ulnar-humeral joint. In some respects, the pulled elbow , commonly seen in infants, can also be considered a Bado I equivalent. The injury occurs when the elbow has traction applied, usually resulting in hyperextension and pronation. The radial head subluxes through the annular ligament but does not truly dislocate and radiographs are either normal or will show an effusion with elevation of the fat pads. [Pg.270]

Pulled elbow does not require manipulation under anaesthesia. The forearm is flexed and supi-nated. Often this results in a gratifying pop and the child resumes normal activity. If this manoeuvre is unsuccessful, simply resting the arm in a sling will allow swelling in the annular ligament to subside and the radial head will reduce within 2-3 days. [Pg.271]

Avulsion fractures of the medial epicondyle are seen between the ages of 9 and 15, after the apophysis becomes a separate ossification nucleus from the epiphysis of the distal humerus and before it fuses with the distal humerus. The medial epicondyle is a traction apophysis for the flexor group of forearm muscles, and also serves as an attachment for the ulnar collateral ligaments and the joint capsule. This injury accounts for up to 10% of elbow fractures. [Pg.272]

Extension of the elbow from the anatomic position is limited (5 to 10 degrees) by contact of the olecranon process with the fossa, tension in the anterior ligament, and resistance of anterior muscles. The triceps brachii is the only significant elbow muscle that functions in extension. There is some minor contribution by the anconeus. Because most elbow extension is accomplished by gravity, the triceps functions primarily against resistance. [Pg.419]

The joint capsule and several ligaments support the elbow joints. Maintaining the most support and resisting valgus and varus strains are the medial and lateral collateral ligaments, respectively. Other anatomical considerations in-... [Pg.421]

Somatic dysfunctions can involve contraction of the related muscles, compression of the neural elements, strain of the ligamentous aspects, and restriction primarily of the secondary motions of the joint components. The radial head typically entails posterior or anterior dysfunctions and may involve the muscles, the annular ligament, and the lateral collateral ligament. The humero-olecranon dysfunctions can involve the muscles, the medial collateral ligament, and can be related to symptoms involving the ulnar nerve. Restriction of elbow... [Pg.422]

Ligamentous stability It may be necessary to test the elbow for ligamentous stability. This is performed by placing first a valgus stress and then a varus stress on the elbow, using one hand as a fulcrum and the other as an opposing force. [Pg.424]

Elbow is one of the most complex articular anatomy of human joint. Distal humerus, Proximal radius, and Proximal ulna are three elbow joint bones which are connected by tendons, ligaments and muscles [1]. Most famous disease that can affect normal elbow s function is rheumatoid arthritis that weaken the function status of patient. Total elbow arthroplasty can be the best decision for those patients that has advance elbow dysfunction, regarding to relive the pain and restore the normal physiological function [2]. Like all other joint replacement some complication such as instability, loosening, dislocation, polyethylene wear and infection, has restricted the long term survivorship of Total elbow arthroplasty [3]. [Pg.215]

Daniel B. Heiren, MD, Shawn W. O Driscoll, Kai-Nan An, Rochester, M,(2001), Role of collateral ligaments in the GSB-linked total elbow prosthesis. Journal of Shoulder Elbow Surgery 260-4. Vol. 10, Numbers... [Pg.218]

Ward SI, Teefey SA, Paletta GA Jr et al (2003) Sonography of the medial collateral ligament of the elbow a study of cadavers and healthy adult male volunteers. AJR Am J Roentgenol... [Pg.185]

Struthers , which joins the anomalous bony process and the medial epicondyle. Clinically, this condition typically affects young sportsmen as a result of intense muscular activity in the elbow and forearm and may start with pain and numbness in the first three fingers and weakness of forearm muscles innervated by the median nerve (Sener et al. 1998). US can demonstrate the relationship of the median nerve with the anomalous bone and ligament. Although not yet reported in the radiological literature, displacement of the nerve by these structures may represent an indicator of entrapment. Therapy includes excision of the ligament of Struthers and ablation of the supracondylar process. The brachial artery can also be compressed by an anomalous insertion of the pronator teres muscle into the supracondylar process (Talha et al. 1987). [Pg.344]

Anterior Elbow Pathology 371 Distal Biceps Tendon Tear 371 Bicipitoradial (Cubital) Bursitis 372 Medial Elbow Pathology 376 Medial Epicondylitis (Epitrochleitis) 376 Medial Collateral Ligament Injury 377 Epitrochlear Lymphadenopathies 377 Lateral Elbow Pathology 378 Lateral Epicondylitis 378... [Pg.349]

A brief description of the complex anatomy of the elbow with emphasis given to the anatomic features amenable to US examination, including joints and ligament complexes, muscles and tendons, neurovascular structures and bursae, is included here. [Pg.349]

The elbow is composed of three articulations-radio-capitellar, proximal radio-ulnar and trochlea-ulnasharing in a common joint cavity and stabilized by a number of soft-tissue structures, including the lateral and medial collateral ligaments and the anterior portion of the joint capsule. [Pg.350]

The elbow is one of the most stable joints of the body. In normal states, elbow joint motion ranges approximately from 0° to 150° of flexion and from 75° in pronation to 85° in supination. Elbow extension is limited by contact of the olecranon in the posterior humeral fossa, and tightening of the anterior band of the medial collateral ligament, of the joint capsule and of flexor muscles. On the other hand, the bulk of anterior muscles of the arm, the tension of the triceps and the contact of the coronoid process in the anterior humeral fossa limit elbow flexion. Pronation and supination movements are primarily limited by passive muscle constraints rather than ligaments. [Pg.350]

The joint capsule invests the entire elbow. Anteriorly, it is attached to the humeral shaft just above the coronoid and radial fossae, to the anterior aspect of the coronoid process and to the annular ligament... [Pg.350]


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See also in sourсe #XX -- [ Pg.55 ]




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Collateral Ligament Medial Elbow

Elbow

Ligament

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