1/2. regeneration of the coracoacromial ligament after acromioplasty and arthroscopic subacromial decompression.The clinical observation of apparent and complete regeneration of the coracoacromial ligament after known partial excision of the ligament and acromioplasty has been investigated. Ten patients who had open revision surgery following failure of symptomatic relief after arthroscopic subacromial decompression were studied. All of them had acromioplasty with documented partial resection of the coracoacromial ligament at the first operation. There were 5 men and 5 women with an average age of 54.5 years (range, 44-65 years). In all patients surgery revealed a ligamentous structure resembling the coracoacromial ligament that was attached to the anterior acromion. histology in all patients revealed appearances indistinguishable from normal ligament, which was in continuity with the reformed periosteum of the acromion.- - - - - - - - - - ranking = 1keywords = ligament (Clic here for more details about this article) |
2/2. Synovial osteochondromatosis: an unusual cause for subacromial impingement.Impingement syndrome is usually caused by encroachment on the rotator cuff of the acromion, coracoacromial ligament, acromioclavicular joint or coracoid process. Bursal causes of impingement are rare but include rheumatoid thickening, and thickening from previous and iatrogenic causes such as sutures, pins, or wires left from previous surgery. We report a case of synovial osteochondromatosis presenting as chronic impingement syndrome. Synovial osteochondromatosis may be difficult to differentiate from chronic calcific tendinitis, but we describe a radiological sign and its anatomical basis that can differentiate between the two. If densities are seen on plain radiographs distal to the greater tuberosity, then loose bodies within the subacromial bursa should be considered.- - - - - - - - - - ranking = 0.1keywords = ligament (Clic here for more details about this article) |