Abstract：
METHODS: A 38-year-old man with congenital pain insensitivity underwent bilateral below-knee amputations. After his subsequent bilateral osseointegration (OI) limb replacements, he rapidly developed severe bilateral knee arthritis and varus deformity. In lieu of performing bilateral above-knee amputations, he underwent bilateral staged total knee arthroplasties (TKA) with excellent clinical and radiographic evaluation at 1-year follow-up.
CONCLUSIONS: To address both the limited bone stock and OI implant stem location, TKA after OI limb replacement in congenital pain insensitivity patients can be successfully achieved with a nonkeeled cementless tibial component and augmentation with a tibial cone.
CONCLUSIONS: To address both the limited bone stock and OI implant stem location, TKA after OI limb replacement in congenital pain insensitivity patients can be successfully achieved with a nonkeeled cementless tibial component and augmentation with a tibial cone.
摘要：
方法：一名患有先天性疼痛不敏感症的38岁男子接受了双侧膝下截肢手术。在他随后的双侧骨整合（OI）肢体置换后，他迅速发展为严重的双侧膝关节炎和内翻畸形。代替进行双侧膝上截肢,患者接受了双侧分期全膝关节置换术(TKA),随访1年,临床和影像学评估结果均较好.
结论：为了解决有限的骨量和OI植入物茎位置，先天性疼痛不敏感患者OI肢体置换后的TKA可以通过非龙骨无水泥胫骨组件和胫骨锥增强来成功实现。
结论：为了解决有限的骨量和OI植入物茎位置，先天性疼痛不敏感患者OI肢体置换后的TKA可以通过非龙骨无水泥胫骨组件和胫骨锥增强来成功实现。
