Clinique Chirurgicale Orthopédique et Traumatologique, CHU Hôtel Dieu, Nantes, France.
J Arthroplasty. 2014 Apr;29(4):753-6. doi: 10.1016/j.arth.2013.07.001. Epub 2013 Aug 6.
After total hip arthroplasty (THA) some patients have persistent postoperative pain (POP). Some of these POP are anterior and are caused by an anterior iliopsoas impingement (AIPI). We have hypothesized that oversized implanted cups could be responsible for POP and especially AIPI. We screened 237 patients who had a primary THA and compared the size difference (ΔS) between the native femoral head and the implanted cup, in patients with and without POP. Median ΔS was 2 mm [-6; 11 mm] and patients with POP had a significantly increased ΔS (P < 0.0001). The threshold above which pain was significantly more frequent was ΔS ≥ 6 mm. Odds ratio was 14.4 for POP and 26 for AIPI pain when ΔS ≥ 6 mm.
全髋关节置换术后（THA）有些患者仍有持续性术后疼痛（POP）。这些 POP 中的一些是前侧的，是由前髂腰肌撞击（AIPI）引起的。我们假设过大的植入杯可能会导致 POP，尤其是 AIPI。我们筛选了 237 名初次 THA 患者，比较了有和无 POP 患者的患侧股骨头和植入杯之间的大小差异（ΔS）。中位数ΔS 为 2 毫米[-6；11 毫米]，且有 POP 的患者 ΔS 明显增加（P < 0.0001）。当 ΔS≥6 毫米时，疼痛明显更频繁的阈值。ΔS≥6 毫米时，POP 的比值比为 14.4，AIPI 疼痛的比值比为 26。
