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CONSERVATIVE TREATMENT OF ROTATOR CUFF IMPINGEMENT



Abstract

Our retrospective study of 189 patients aimed to establish the efficacy of conservative treatment for rotator cuff impingement and also to assess the clinical presentation and the factors that influence the outcome.

We noted patients’ response to physiotherapy and cortisone injections. We looked at the shape of the acromion and tried to correlate it with effectiveness of conservative treatment.

All patients had either a positive Neer or Hawkins sign. In 123 patients internal rotation was markedly restricted. Subacromial cortisone injections were administered to 119 patients. The injection was repeated once in 52 patients and twice in 25. Surgery was necessary in 44 patients. In other words, conservative treatment was effective in 83%.

Only 12 of the patients who underwent surgery had a Bigliani type-III acromion and only nine had a large spur.

An appropriate exercise programme is critical if conservative treatment is to be effective. It should focus first on stretching the posterior capsule of the shoulder joint and increasing internal rotation, and subsequently on strengthening the subscapularis and infraspinatus muscles. We believe it is the imbalance of muscle power rather than the acromial spur that is the major cause of impingement.

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