San Francisco Orthopaedic Residency Program, San Francisco, California, USA.
J Arthroplasty. 2011 Sep;26(6):941-8. doi: 10.1016/j.arth.2010.12.014. Epub 2011 May 10.
Recurrent dislocation secondary to posterior soft tissue deficiency is a challenging complication of total hip arthroplasty. We describe the use of an Achilles allograft sling to improve hip stability. Eight patients treated with the sling were followed an average of 5 years. Seven patients had no recurrent instability and good postoperative range of motion. One graft failed in a patient with a neuropathic hip. Cadaveric biomechanical testing was also performed to investigate the stiffness and torque to failure of the sling in 6 specimens. Allograft slings can be used to improve hip stability. The technique is relatively easy to perform and does not limit postoperative range of motion. The graft decreases joint stiffness and has a greater torque to failure than the intact capsule.
由于后部软组织缺乏导致的复发性脱位是全髋关节置换术的一个具有挑战性的并发症。我们描述了使用跟腱同种异体移植物吊带来改善髋关节稳定性。8 名接受吊带治疗的患者平均随访 5 年。7 名患者无复发性不稳定，术后活动范围良好。1 名患有神经病性髋关节的患者的移植物失败。还对 6 个标本进行了尸体生物力学测试，以研究吊带的刚度和破坏扭矩。同种异体移植物吊带可用于改善髋关节稳定性。该技术相对容易实施，不会限制术后活动范围。移植物降低了关节的刚度，并且具有比完整囊更大的破坏扭矩。
