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The glenohumeral joint has been analogously described as a golf ball (head of the humerus) sitting on a golf tee (glenoid fossa). [5] The rotator cuff compresses the glenohumeral joint during abduction of the arm, an action known as concavity compression, in order to allow the large deltoid muscle to further elevate the arm. In other words ...
One possible long-term consequence result of a rotator cuff tear is called proximal humeral head migration, this is where the "ball" of the shoulder joint rests higher in the shoulder joint "socket" disrupting normal shoulder mechanics. [89] Only tear size is an independent predictor of humeral migration.
No radiographic features of osteoarthritis. 1. Possible joint space narrowing (normal joint space is at least 2 mm at the superior acetabulum) [7] and osteophyte formation. 2. Definite osteophyte formation with possible joint space narrowing. 3. Multiple osteophytes, definite joint space narrowing, sclerosis and possible bony deformity.
Trapeziometacarpal osteoarthritis. Trapeziometacarpal osteoarthritis (TMC OA) is, also known as osteoarthritis at the base of the thumb, thumb carpometacarpal osteoarthritis, basilar (or basal) joint arthritis, or as rhizarthrosis. [3][1][2] This joint is formed by the trapezium bone of the wrist and the metacarpal bone of the thumb.
Specialty. Orthopedics, sports medicine. Shoulder impingement syndrome is a syndrome involving tendonitis (inflammation of tendons) of the rotator cuff muscles as they pass through the subacromial space, the passage beneath the acromion. It is particularly associated with tendonitis of the supraspinatus muscle. [ 1 ]
Despite the fact that the glucosamine group showed less than one-tenth the joint narrowing (0.013 mm) as the placebo group (0.166 mm), none of the groups experienced joint space narrowing to the degree the researchers expected (0.4 mm) over the two-year period based on earlier studies of OA disease progression.
Anatomical terminology. [edit on Wikidata] The capsule of the glenohumeral (shoulder) joint is the articular capsule of the shoulder. It completely surrounds the joint. It is attached above to the circumference of the glenoid cavity beyond the glenoidal labrum, and below to the anatomical neck of the humerus, approaching nearer to the articular ...
Shoulder problems including pain, are one of the more common reasons for physician visits for musculoskeletal symptoms. The shoulder is the most movable joint in the body. However, it is an unstable joint because of the range of motion allowed. This instability increases the likelihood of joint injury, often leading to a degenerative process in ...