Department of Orthopaedic Surgery, Dankook University Hospital, Cheonan, 31116, South Korea.
Department of Orthopaedic Surgery, College of Medicine, Kyungpook National University, Daegu, 41944, South Korea.
Int Orthop. 2023 Nov;47(11):2787-2794. doi: 10.1007/s00264-023-05928-1. Epub 2023 Aug 15.
This study aimed at evaluating the outcomes of ulnar shortening osteotomy (USO) for the treatment of ulnar styloid impaction syndrome (USIS) and to compare them with those of USO for the treatment of ulnar impaction syndrome (UIS).
We enrolled 144 patients who underwent USO between March 2015 and October 2021. The patients were divided into a UIS group (group I, n = 93) and a USIS group (group II, n = 51). Clinical and radiological parameters, including Disabilities of the Arm, Shoulder, and Hand (DASH) score, ulnar variance, ulnar styloid length, and ulnar styloid process index (USPI), were collected pre-operatively and one year post-operatively, and a comparative analysis was performed.
The DASH score showed significant improvement in both groups (p < .001 and p < .001), and there was no significant difference between the two groups one year after surgery (p = .143). The USPI was significantly different between the two groups (p < .001). The ulno-lunate and ulno-triquetrum distances showed significant increases in both groups, with significant differences between the two groups (p = .020, and p < .001, respectively). The incidence of post-operative arthritic changes in the distal radioulnar joint was significantly greater in the UIS group than that in the USIS group (21 vs 3, respectively; p = .017). No remarkable differences were observed in the post-operative evidence of chondromalacia at the last follow-up between the two groups.
The USO, which was performed as a treatment for USIS showed reliable outcomes compared to the USO for the treatment of UIS. Therefore, USO is a viable option for the treatment of USIS.
本研究旨在评估尺骨缩短截骨术（USO）治疗尺骨茎突撞击综合征（USIS）的疗效，并与治疗尺骨撞击综合征（UIS）的疗效进行比较。
我们纳入了 2015 年 3 月至 2021 年 10 月期间接受 USO 的 144 例患者。患者分为 UIS 组（I 组，n=93）和 USIS 组（II 组，n=51）。收集术前和术后 1 年的临床和影像学参数，包括上肢残疾问卷（DASH）评分、尺骨变异、尺骨茎突长度和尺骨茎突指数（USPI），并进行比较分析。
两组的 DASH 评分均显著改善（p<0.001 和 p<0.001），术后 1 年两组间无显著差异（p=0.143）。两组间 USPI 差异显著（p<0.001）。两组的尺月和尺三角距离均显著增加，两组间差异有统计学意义（p=0.020 和 p<0.001）。UIS 组术后远端桡尺关节关节炎发生率明显高于 USIS 组（21 例 vs 3 例，p=0.017）。两组末次随访时软骨软化的术后证据无明显差异。
与治疗 UIS 的 USO 相比，作为 USIS 治疗方法的 USO 效果可靠。因此，USO 是治疗 USIS 的一种可行选择。
