Lachiewicz Paul F, Soileau Elizabeth S
Department of Orthopaedic Surgery, University of North Carolina, Chapel Hill, NC 27514, USA.
J Bone Joint Surg Am. 2009 Jun;91(6):1419-23. doi: 10.2106/JBJS.H.01351.
We report the results of a consecutive series of total knee arthroplasties with use of a modular posterior stabilized prosthesis after a mean follow-up of twelve years (range, ten to eighteen years). In the five years since the original publication of our study, two additional knees were revised; one was revised for aseptic loosening and one, for polyethylene wear with tibial osteolysis. With mechanical failure as an end point, the fifteen-year survival was 96.8%. With failure defined as any reoperation, the fifteen-year survival was 90.6%. Osteolysis occurred in eight of the 117 knees with a minimum ten-year follow-up. With the relatively small number of subjects, no significant association was identified between polyethylene thickness or sterilization method and osteolysis. A significant association was identified between younger patient age and osteolysis. We continue to routinely implant a similar modular posterior stabilized total knee prosthesis.
我们报告了一系列连续的全膝关节置换术的结果，这些手术使用了模块化后稳定型假体，平均随访12年（范围为10至18年）。自我们的研究首次发表后的五年里，又有两个膝关节进行了翻修；一个因无菌性松动而翻修，另一个因聚乙烯磨损伴胫骨骨溶解而翻修。以机械故障为终点，15年生存率为96.8%。将失败定义为任何再次手术时，15年生存率为90.6%。在117例至少随访10年的膝关节中，有8例发生了骨溶解。由于受试者数量相对较少，未发现聚乙烯厚度或灭菌方法与骨溶解之间存在显著关联。发现年轻患者年龄与骨溶解之间存在显著关联。我们继续常规植入类似的模块化后稳定型全膝关节假体。
