Howie D W, Campbell D, McGee M, Cornish B L
Department of Orthopaedic Surgery and Trauma, Royal Adelaide Hospital, Australia.
J Bone Joint Surg Am. 1990 Jun;72(5):708-14.
In a prospective study of 100 consecutive Wagner resurfacing hip arthroplasties in ninety-three patients, the outcomes for all hips were determined for an eight to ten-year follow-up period. By survivorship analysis, the rate of survival of the arthroplasty was calculated to be 70 per cent at five years, but only 40 per cent at eight years. The major cause of failure was aseptic loosening of the acetabular or femoral component, or both. Fracture of the neck of the femur occurred in three hips. Although the medium-term results (at fifty-six to eighty-three months) were better than those in most comparable studies of resurfacing arthroplasty, the poor long-term results (at ninety-one to 118 months) show that meaningful studies of new prosthetic designs must continue for at least eight years, and, if at all possible, must include 100 per cent follow-up. The survival curve for the resurfacing arthroplasties in this study can serve as the basis for comparison of the early, medium, and long-term results of future designs of resurfacing hip prostheses.
在一项针对93例患者连续进行的100例Wagner表面置换髋关节成形术的前瞻性研究中，对所有髋关节进行了为期8至10年的随访，并确定了其结果。通过生存分析，该关节成形术的5年生存率计算为70%，但8年时仅为40%。失败的主要原因是髋臼或股骨组件或两者的无菌性松动。有3例髋关节发生了股骨颈骨折。尽管中期结果（56至83个月）优于大多数类似表面置换关节成形术的研究结果，但较差的长期结果（91至118个月）表明，对新假体设计进行有意义的研究必须持续至少8年，并且如果可能的话，必须包括100%的随访。本研究中表面置换关节成形术的生存曲线可作为比较未来表面置换髋关节假体早期、中期和长期结果的基础。
