Division of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, Alabama 35294-3409, USA.
J Arthroplasty. 2010 Oct;25(7):1168.e5-7. doi: 10.1016/j.arth.2009.08.008. Epub 2009 Oct 17.
Multiple treatment options have been described to treat osteonecrosis of the femoral head, all with the goal of slowing or reversing the disease process and preventing the need for arthroplasty in a young patient population. Core decompression of the femoral head to allow revascularization is a commonly used technique that can now be supplemented by placement of the Osteonecrosis Intervention Implant (Zimmer, Warsaw, Ind). It consists of a tantalum strut that acts as a buttress for the subchondral bone of the femoral head. In this case, our patient underwent this procedure with subsequent subtrochanteric fracture. The factors leading to this iatrogenic injury are location of implant insertion, patient selection, and premature ambulation.
已经描述了多种治疗股骨头坏死的方法，所有这些方法的目的都是减缓或逆转疾病进程，并防止年轻患者人群需要进行关节置换。股骨头的核心减压以允许再血管化是一种常用的技术，现在可以通过放置骨坏死介入植入物（Zimmer，印第安纳州华沙）来补充。它由一个钽支柱组成，作为股骨头软骨下骨的支撑物。在这种情况下，我们的患者接受了该手术，随后发生了转子下骨折。导致这种医源性损伤的因素包括植入物插入的位置、患者选择和过早活动。
