1999 年 48 巻 3 号 p. 914-916
We studied the pathological diagnosis of the synovium of the subacromial bursa of 30 patients with shoulder impingement syndrome without rotator cuff tear. The diagnosis consisted of three types, i. e. chronic synovitis (73.3%), degeneration (16.7%) and fibrosis (20%). The results of a group with friction finding observed arthroscopically at the undersurface of the coracoacromial arch were more or less the same as one of another group without the finding. In deciding the surgical indication to the shoulder impingement syndrome of intact rotator cuff tear, clinical findings are very important.