PDF(Pubmed)
Abstract：
Trapeziometacarpal osteoarthritis (TMC-OA) reduces the range of motion (ROM) of the thumb. However, the kinematic change achieved through surgical treatment remains unclear. Therefore, to quantify the kinematic change following TMC-OA surgery, we performed a three-dimensional motion analysis of the thumb using an optical motion capture system preoperatively and 1 year postoperatively in 23 patients with TMC-OA scheduled for arthrodesis (AD) or trapeziectomy with suspensionplasty (TS). Eighteen hands of nine healthy volunteers were also included as controls. Both procedures improved postoperative pain and Disability of the Arm, Shoulder and Hand scores, and AD increased pinch strength. The ROM of the base of the thumb was preserved in AD, which was thought to be due to the appearance of compensatory movements of adjacent joints even if the ROM of the TMC joint was lost. TS did not improve ROM. Quantifying thumb kinematic changes following TMC-OA surgery can improve our understanding of TMC-OA treatment and help select surgical procedures and postoperative assessment.
摘要：
梯形掌骨骨关节炎（TMC-OA）降低了拇指的活动范围（ROM）。然而,通过手术治疗实现的运动学变化仍不清楚.因此,为了量化TMC-OA手术后的运动学变化，我们在手术前和术后1年使用光学运动捕获系统对23例TMC-OA患者进行了拇指的三维运动分析,这些患者计划进行关节固定术(AD)或带悬吊术(TS)的梯形切除术.还包括9名健康志愿者的18只手作为对照。两种手术都改善了术后疼痛和手臂残疾，肩和手的分数，AD增加了捏合强度。拇指基部的ROM在AD中保存，这被认为是由于即使TMC关节的ROM丢失，相邻关节也会出现补偿性运动。TS没有改善ROM。量化TMC-OA手术后的拇指运动学变化可以提高我们对TMC-OA治疗的理解，并有助于选择手术程序和术后评估。
