Acta Orthop Belg. 2021 Sep;87(3):449-451.
Rotating-hinge knee implants are fully constrained knee prostheses commonly used for revision total knee arthroplasty. Nevertheless, rotating-hinge devices have been increasingly utilized in primary setting. Complications are inevitable in orthopedic surgery, however, implant breakage after RHK arthroplasty has been rarely described in medical literature. We present a rare case of 70-year-old Caucasian, male patient who suffered an atraumatic femoral stem breakage in a primary NexGen ® Rotating Hinge Knee (Zimmer-Biomet ® , Warsaw, IN, USA).
旋转铰链膝关节植入物是全约束膝关节假体，常用于翻修全膝关节置换术。然而，旋转铰链装置在初次置换中越来越多地被使用。在骨科手术中，并发症是不可避免的，然而，在医学文献中很少有报道旋转铰链膝关节置换术后植入物断裂的情况。我们报告了一个罕见的病例，一名 70 岁的白人男性患者在初次 NexGen ® 旋转铰链膝关节（Zimmer-Biomet ® ，华沙，IN，美国）中遭受了股骨柄的非外伤性断裂。
