The incidence of nerve injuries in primary shoulder dislocation and humeral neck fracture is uncertain. We made a prospective study of 101 patients, using clinical examination and extensive electrophysiological assessment when there was suspicion of nerve damage. We found electrophysiological evidence of nerve injury in 45%, most involving the axillary, suprascapular, radial and musculocutaneous nerves. There were significantly more nerve injuries in older patients and those with a haematoma. Most patients recovered partially or completely in less than four months, and only eight had persistent motor loss. Early diagnosis and physiotherapy are recommended.

The clinical features of a superior dislocation of the glenohumeral joint are described. Reposition, even under general anaesthesia, cannot be achieved. Associated supraspinatus tear, acromioclavicular separation and the dislocated position of the humeral head can be clearly visualized.

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The clinical features of a superior dislocation of the glenohumeral joint are described. Reposition, even under general anaesthesia, cannot be achieved. Associated supraspinatus tear, acromioclavicular separation and the dislocated position of the humeral head can be clearly visualized.