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- Risk Factors for Postoperative Femoral Fracture in Cementless Hip Arthroplasty
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題名 | Risk Factors for Postoperative Femoral Fracture in Cementless Hip Arthroplasty=使用無骨泥髖關節置換術後發生股骨骨折之危險因子探討 |
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作者 | 吳佳駿; 敖曼冠; 吳興盛; 林柳池; Wu, Chia-chun; Au, Man-kuan; Wu, Shing-sheng; Lin, Leou-chyr; |
期刊 | 臺灣醫學會雜誌 |
出版日期 | 19990300 |
卷期 | 98:3 1999.03[民88.03] |
頁次 | 頁190-194 |
分類號 | 416.26 |
語文 | eng |
關鍵詞 | 無骨泥髖關節置換術; 股骨骨折; Fracture; Ipsilateral femur; Cementless hip arthroplasty; Canal flare index; |
英文摘要 | The objective of this study was to evaluate the incidence of and risk factors for femoral fracture in patients who underwent cementless hip arthroplasty during a 3-year period. Several predisposing factors have been reported; we tried to find another predictive indicator that could be recognized preoperatively. The records of all patients who underwent cementless hip arthroplasty from December 1993 to December 1996 were reviewed. The characteristics and clinical features (including age, gender, diagnosis, geometry of the proximal femur, and quality of bone) of the patients who had fractures were compared with those of patients who did not have fractures. During the 3-year study, 425 patients underwent a total of 454 cementless hip arthroplasties. There were 16 postoperative fractures (3.5%, 16 patients). Patients who suffered femoral fracture were significantly older than patients without fracture (65.6±10.9 yr vs 52.6±16.2 yr, p<0.001). The fracture group had poorer preoperative bone quality compared with the nonfracture group (3.3±0.6 vs 3.8±0.7, Singh's Index of Osteoporosis, p<0.01). The canal flare index of the proximal femur was significantly lower in the fracture group than in the nonfracture group (3.3±0.40 vs3.8±0.7, P<0.01) Our results indicate that old age and osteoporosis affect the likelihood of periprosthetic femoral fractures, and that a low flare index is predictive indicator of femoral fracture. These factors should be taken into account during preoperative planning, and cemented arthroplasty should be considered for patients with these risk factors. |
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