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半髖關節置換術；雙極式人工關節；股骨頭缺血性壞死；股骨頸骨折；hiphemiarthroplasty；bipolarendoprosthesis；femoralhead...中山醫學雜誌.

This study reviewed the outcomes of 162 cementless bipolar hemiarthroplasties that were performed between January 1988 and December 2000 on 156 patients for displaced femoral neck fractures or femoral head osteonecrosis. Twenty-one patients died, and 15 were lost to follow-up. Thus, 124 hips (120 patients) were included for study. Mean patient ages at surgery for osteonecrosis and femoral neck fracture were 47 years and 74 years, respectively. Mean length of follow-up was 5.5 years (range, 2-11 years). At the last follow-up that included a Harris Hip Score evaluation, 88% (109 of 124 hips) were rated good to excellent, and 12% (15 of 124 hips) were rate fair or poor. There were 3 cases of dislocation, 3 of loosening, 10 of acetabular erosions or protrusion, and 2 of inflection. Complication rate was low, and the cementless bipolar hemiathroplasty provided satisfactory pain relief for ...