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Recurrent instability of the gleno-humeral joint.

The importance of instability in the determination of painful syndromes of the shoulder is examined, with particular reference to young people who engage in sport. The physiopathology and clinical features are described, and the importance of diagnostic tests is emphasized. These often disclose the underlying pathological anatomy. Surgical treatment, which is indicated whenever the lesion is well documented, follows the methods used in treating recurrent dislocation. The validity of the method of Latarjet and Bristow is emphasized.