title: Arthroscopic subacromial decompression for stage-II impingement.
abstract: OBJECTIVE
  To evaluate outcomes of arthroscopic subacromial decompression for stage-II impingement.
  
  
  METHODS
  Records of 42 consecutive patients with stage-II impingement treated by arthroscopic subacromial decompression from January 2000 to February 2002 were reviewed. Clinical outcomes were measured using the UCLA shoulder rating scale, and radiological outcomes using anteroposterior and supraspinatus outlet shoulder radiographs.
  
  
  RESULTS
  The mean follow-up period was 14.6 (range, 12-30) months. Using the UCLA scale, 14 (33%) patients had an excellent result, 21 (50%) had a good result, 4 (10%) had a fair result, and 3 (7%) had a poor result. Mean component scores for the UCLA scale were: 8.0 for pain, 8.8 for function, 4.5 for forward flexion, and 4.5 for strength. The mean extent of resection was 2.9 mm in the anteroposterior and 2.0 mm in the supraspinatus outlet radiographs. There was no correlation between the extent of acromial resection and the UCLA shoulder rating scores.
  
  
  CONCLUSIONS
  Short-term results of arthroscopic subacromial decompression for stage-II impingement are favourable.
authors: Department of Orthopaedic Surgery, Changi General Hospital, Singapore.
authors: K K
authors: KK
authors: Lim
authors: H C
authors: HC
authors: Chang
authors: J L
authors: JL
authors: Tan
authors: B K
authors: BK
authors: Chan
mesh_terms: D000174:Acromion / Q000000981:diagnostic imaging / Q000601:surgery*; D000328:Adult; D000368:Aged; D001182:Arthroscopy / Q000379:methods*; D019299:Decompression, Surgical / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D017060:Patient Satisfaction; D011859:Radiography; D012189:Retrospective Studies; D019534:Shoulder Impingement Syndrome / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D020069:Shoulder Pain / Q000503:physiopathology; D016896:Treatment Outcome