Long-term results of total hip replacement.

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  • 人工股関節置換術の長期成績と合併症

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Total-hip replacement has been performed on 165 cases and 172 joints in Nihon university hospital and its related hospitals from January, 1970 to December, 1984. Among them, 85 cases and 91 joints have been pursued for over 5 years, and a follow-up survey is possible for 50 cases and 55 joints. For these cases, clinical assessment before and after operations have been performed with the evaluation-criteria of coxarthrosis by the Japanese Orthopaedic Association, and review has also been made on the cases of replacement. No distinct differences have been observed with respect to sex whereas, there was a tendency for poor results in the cases who were less than 50 at the time of operation. Revision-causes were loosening of socket or stem, fracture or cortical perforation of the femur, and protrusio acetabuli. The revision rate was 5.8% including the surface-replacement arthroplasty and at an average of 8 years and 9 months after operation. The possibility was also shown that the need for revision increases over the long-term course.

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