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THE ARTHROSCOPIC MUMFORD PROCEDURE USING TWO PORTALS



Abstract

Painful conditions of the acromioclavicular (AC) joint are common in South Africa, particularly among sportsmen. These conditions are often treated by open excision of the distal end of the clavicle, but an arthroscopic procedure offers many advantages.

From February 1994 to February 2000, we performed 138 procedures. The mean age of patients ({71% men and 29% women) was 29 years (19 to 53). In cases of rotator cuff impingement, arthroscopic acromioplasty was followed by clavicular excision via the subacromial route. With a normal acromion and rotator cuff the AC joint was approached through two superior AC portals, avoiding removal of the AC ligaments. In all cases a standard 3.5-mm arthroscope was placed in one portal for viewing and the mechanical shaver inserted through the other. About 7 mm to 8mm of bone was removed from the clavicle. Patients were in hospital for about a day and 87% were discharged the same day.

The mean follow-up time was 34 months (2 months to 4 years). Patient satisfaction was high in 32%, fair in 60% and poor in 8%. Most patients (92%) returned to all previous sports and activities.

We concluded that the arthroscopic Mumford procedure is at least as successful as its open equivalent. It can be done as an outpatient procedure and permits a rapid return to activities. Cosmesis is excellent and stability of the AC joint is preserved.

The abstracts were prepared by Professor M. B. E. Sweet. Correspondence should be addressed to him at The Department of Orthopaedic Surgery, Medical School, University of Witwatersrand, 7 York Road, Parktown, Johannesburg, 2193 South Africa