リウマチ肩に対する人工肩関節置換術の成績 Results of Prosthetic Arthroplasty for Rheumatoid Shoulders
Fourteen patients with rheumatoid shoulder underwent prosthetic arthroplasties over the last seven years. The results of prosthetic arthroplasties in 12 patients on whon a follow-up study could be made more than one year after surgery were evaluated by the J. O. A. score.<BR>These patients consisted of 4 males and 8 females and the age at the time of operation ranged from 46 to 72 years. The follow-up period after the operation ranged from one year to 6 years and 4 months. A single modular total shoulder arthroplasty system (Biomodular Total Shoulder System, Biomet, Warsaw, Ind. ) was used in each case. All polyethylene glenoid components were implanted with cement. In 7 Shoulders, humeral stems were inserted by the press-fit technique. At follow-up period each patient was evaluated according to the J. O. A. score. The rotator cuff tear was torn in 6 patients. The results were excellent in one case, good in 4 cases, fair in 5 cases and 2 patients had poor result. A remarkable relief of pain was observed in most of the patients. Range of motion improved 50° in forward elevation. In the analysis, functional results of the prosthetic arthroplasty depend on the status of deltoid muscle rather than that of rotator cuff (p<O.05).<BR>A modular total shoulder system provides better adjustment to the soft-tissue tension on the shoulder joint and better results than non-modular shoulder arthroplasty.
- 肩関節 = Shoulder joint
肩関節 = Shoulder joint 23(2), 305-308, 1999-07-30
Japan Shoulder Society