肩人工骨頭置換術後の予後

概要

論文の詳細を見る
We investigated the clinical results and prognosis following the use of prosthetic arthroplasty of the proximal humerus. 12 shoulders of 11 patients were investigated. Preoperative diagnosis was dislocation fracture in 6 shoulders, non-union caused by fracture in 2 shuolders, and avascular necrosis of the humeral head in 4 shoulders. The mean age at operation was 56.3 years (range; 34-84 years) . The mean follow-up period was 3 years 7 months (7 months-17 years 9 months). Operative results were evaluated according to the Japanese Orthopaedic Association (JOA) score.The average postoperative JOA score for 6 cases with complications was 56.0 points (48-67 points). On the other hand in 6 cases without complications this was 84.7 points (74-97 points) . In four cases without complications, those who had their shoulder immobilized in an elevated position, the JOA score was higher (88.0 points) compared to the remaining two without immobilization (78.0 points).From the results of this study, it can be concluded that the prognosis is poor in patients with complications. Also, after prosthetic arthroplasty, if the shoulder is immobilized in an elevated position, better results can be obtained.