肩人工関節置換術の術後成績の検討

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The purpose of this study was to evaluate the postoperative results of shoulder arthroplasty. From 1974 to 2000 total shoulder arthroplasty and hemiarthro- plasty on 116 patients (119 shoulders) were performed. There were 40 males and 76 females. The average age was 61.5 years old. The follow-up period was 11.5 years. The operations were performed for the treatment of old fractures or fracture dislocations (71shoulders), rheumatoid arthritis (23 shoulders), osteoarthritis (22 shoulders, and others (3 shoulders). Follow-up evaluations were done with pre and postoperative range of motion (ROM), manual muscle testing (MMT) and pain. The amount of postoperative flexion averaged 118.0°, extension averaged 44.0°, abduction averaged 99.0°, external rotation averaged 29.6°, and internal rotation averaged 52.2°. The average of postoperative ROM of old fractures was the highest (flexion : 129.8°, extension : 43.7°, abduction : 110.2°, external rotation : 33.5°, internal rotation : 53.0°). The average of postoperative ROM of rheumatoid arthritis was the lowest (flexion : 105.0°, extension : 41.2°, abduction : 85.8°, external rotation : 28.5°, internal rotation : 50.4°). The amount of postoperative MMT averaged 3.2-3.6. 73.8 percents of RA and 92.5 percents of patients without RA had only slight or no pain. The purpose of a shoulder arthroplasty is decreasing pain and function reconstruction, and not a mere replacement arthroplasty on anatomization. The security of the rotator cuff function is the most important factor for a shoulder arthroplasty.
日本肩関節学会の論文
2002-01-01

肩人工関節置換術の術後成績の検討

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