Bertin K C, Freeman M A, Samuelson K M, Ratcliffe S S, Todd R C
J Bone Joint Surg Br. 1985 Mar;67(2):242-8. doi: 10.1302/0301-620X.67B2.3980534.
Fifty-three failed knee replacements were revised using minimally constrained implants with smooth uncemented intramedullary stems and metal-backed tibial components. Polymethylmethacrylate was used only to replace lost bone near the surface of the implant. Excluding four knees which had serious postoperative complications, 91% had successful relief of pain, 84% had over 90 degrees of movement and 80% could walk for more than 30 minutes. Review of the radiographs showed that there were no progressive lucencies at the interface between bone and cement, and no subsidence of components or changes in alignment. At the uncemented stem-to-bone interface, thin white lines developed near the metal, and their significance is discussed. This revision technique is an effective treatment for aseptic failure of primary total knee arthroplasty.
五十三例膝关节置换失败病例采用了微创约束性植入物进行翻修，该植入物带有光滑的非骨水泥髓内柄和金属背衬的胫骨部件。聚甲基丙烯酸甲酯仅用于替代植入物表面附近缺失的骨质。排除四例术后出现严重并发症的膝关节，91%的患者疼痛得到成功缓解，84%的患者活动度超过90度，80%的患者能够行走超过30分钟。X线片复查显示，骨与骨水泥界面无进行性透亮区，部件无下沉或对线改变。在非骨水泥柄与骨的界面处，金属附近出现了细白线，并对其意义进行了讨论。这种翻修技术是治疗初次全膝关节置换无菌性失败的有效方法。
