Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China.
J Arthroplasty. 2010 Jun;25(4):660.e5-7. doi: 10.1016/j.arth.2009.04.012. Epub 2009 Jun 2.
We present a case of early ceramic insert dislodgment in a young patient with revision uncemented ceramic-on-ceramic total hip arthroplasty. The presentation may be subtle and the dislodgment may go unnoticed. This incidence draws our attention to the need for careful intraoperative confirmation of the insert position and frequent serial radiographic monitoring. The case also draws speculation of possible design flaws in the locking mechanism predisposing for the insert dislodgment.
我们报告了一例年轻患者行翻修非骨水泥陶瓷对陶瓷全髋关节置换术后早期陶瓷内衬脱位的病例。临床表现可能不明显,脱位可能未被察觉。这一发生率引起了我们对术中仔细确认内衬位置和频繁行系列影像学监测的重视。该病例还引发了对内衬脱位的可能与锁定机制设计缺陷有关的推测。