Division of Orthopaedic Surgery, University of Toronto, Toronto, Ontario, Canada.
Division of Orthopaedic Surgery, University of Toronto, Toronto, Ontario, Canada; Mount Sinai Hospital, Toronto, Ontario, Canada.
J Arthroplasty. 2022 Jul;37(7S):S628-S635. doi: 10.1016/j.arth.2022.03.006. Epub 2022 Mar 11.
Abductor deficiency in revision total hip arthroplasty (THA) is a common problem that can lead to pain, limping, and instability. Repair and reconstruction of the abductors is challenging, with a high rate of failure reported in the literature. The purpose of this study is to describe a simplified technique of abductor repair augmented with the transfer of gluteus maximus (Gmax) and the tensor fascia lata (TFL).
We describe a novel abductor reconstruction with transfer of the anterior 30% of Gmax and the posterior 70% of TFL to the vastus lateralis origin. These transfers can be used in isolation or to augment repair of torn abductors to the greater trochanter. The technique is simple and quick to perform via a lateral approach, requiring dissection of only two muscle slips and minimal additional soft tissue dissection.
We describe the use and outcomes of this technique on three patients undergoing revision THA with severe and irreparable abductor deficiency. Although these patients reported improved function after the reconstruction, there was persistence of mild to moderate limping.
Abductor reconstruction with partial transfers of Gmax and TFL is a promising approach to manage abductor deficiency in revision THA. Larger series are required to determine the efficacy of this technique for restoring abductor function and improving patient reported outcomes.
在翻修全髋关节置换术(THA)中,外展肌缺失是一个常见的问题,可能导致疼痛、跛行和不稳定。外展肌的修复和重建具有挑战性,文献报道其失败率较高。本研究旨在描述一种简化的外展肌修复技术,该技术通过臀大肌(Gmax)和阔筋膜张肌(TFL)的转移来增强。
我们描述了一种新的外展肌重建技术,将 Gmax 的前 30%和 TFL 的后 70%转移到股外侧肌起点。这些转移可以单独使用,也可以增强修复到大转子的撕裂外展肌。该技术通过外侧入路简单快速,只需分离两条肌束,几乎不需要额外的软组织解剖。
我们描述了该技术在 3 例接受翻修 THA 手术的患者中的应用和结果,这些患者存在严重且无法修复的外展肌缺失。尽管这些患者在重建后报告功能改善,但仍存在轻度至中度跛行。
用 Gmax 和 TFL 的部分转移进行外展肌重建是一种有前途的方法,可用于治疗翻修 THA 中的外展肌缺失。需要更大的系列研究来确定该技术恢复外展肌功能和改善患者报告结果的疗效。