Biceps brachialis tenosynovitis

The long head of the biceps brachii passes through the interhumeral groove of the humerus and enters into the front of the subscapular space, ending at the supraspinum tuberosity of the scapula (Figure 1). The tendon slides passively in the humeral nodule, that is, the tendon slides upward when the shoulder joint is adducted, rotated, and extended, and the tendon slides downward during abduction, outward rotation, and flexion. The biceps brachii tendinosingitis is a disease in which this part of the tendon suffers from wear and tear for a long period of time when the shoulder joint moves, causing degeneration and adhesion, which makes the sliding function of the tendon impaired. The disease occurs in patients over 40 years of age. The main clinical features are pain in the humeral tuberosity and limited shoulder movement. If not treated in time, it can develop into frozen shoulders.

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