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Journal of Bone and Joint Surgery - British Volume, Vol 85-B, Issue 4,
545-549.
doi: 10.1302/0301-620X.85B4.13634 Copyright © 2003 by British Editorial Society of Bone and Joint Surgery Os acromiale associated with tear of the rotator cuff treated operativelyREVIEW OF 33 PATIENTST. D. Boehm, MD, Consultant Orthopaedic Surgeon1; M. Matzer, MD, Orthopaedic Registrar2; D. Brazda, MD, Senior House Officer1; and F. E. Gohlke, MD, PhD, Professor of Orthopaedics1
1 Department of Orthopaedic Surgery, Koenig-Ludwig-Haus, University of Würzburg, Brettreichstrasse 11, D-97074 Würzburg, Germany. Correspondence should be sent to Dr T. D. Boehm. Os acromiale is a rare anatomical abnormality and treatment is controversial. Our retrospective study analyses the outcome of excision, acromioplasty and bony fusion of the os acromiale when it is associated with a tear of the rotator cuff. After a mean follow-up of 41 months, 33 patients were radiologically and clinically assessed using the Constant score. The surgical procedure was to repair the rotator cuff together with excision of the os acromiale in six patients, acromioplasty in five, and fusion in 22. Of the 22 attempted fusions seven failed radiologically. The Constant scores were 82%, 81%, 81% and 84% for patients who had excision, acromioplasty, successful fusion and unsuccessful fusion respectively. There were no statistically significant differences. We conclude that a small mobile os acromiale can be resected, a large stable os acromiale treated by acromioplasty and a large unstable os acromiale by fusion to the acromion. Even without radiological fusion the clinical outcome can be good.
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