Stephan F Schindele, Miriam Marks, Xavier Beaud, Vanessa Reischenböck, Daniel B Herren
{"title":"Correction of metacarpophalangeal joint hyperextension following trapeziometacarpal joint implant arthroplasty: a case-control study.","authors":"Stephan F Schindele, Miriam Marks, Xavier Beaud, Vanessa Reischenböck, Daniel B Herren","doi":"10.1177/17531934251330975","DOIUrl":null,"url":null,"abstract":"<p><p>We hypothesized that metacarpophalangeal (MCP) joint hyperextension can be significantly reduced in patients with trapeziometacarpal joint (TMJ) osteoarthritis through TMJ dual mobility implant arthroplasty. Using registry data and propensity score matching, we compared 37 patients with preoperative MCP joint hyperextension >20° with 111 control patients with ≤20° extension. Before surgery, mean MCP joint extension was 34° (95% confidence interval 31-37) in the hyperextension group and 10° (95% CI 8-11) in the control group. Hyperextension was significantly reduced to 9° (95% CI 6-13) 6 weeks after surgery and was not significantly higher than the measured 5° (95% CI 4-7) in the control group. It remained stable for up to 2 years. Secondary outcomes including key pinch strength, pain, the brief Michigan Hand Outcomes Questionnaire and complications did not differ between groups at 2 years. Trapeziometacarpal joint implant arthroplasty can correct preoperative MCP joint hyperextension without additional procedures at the MCP joint.<b>Level of evidence:</b> III.</p>","PeriodicalId":94237,"journal":{"name":"The Journal of hand surgery, European volume","volume":" ","pages":"17531934251330975"},"PeriodicalIF":0.0000,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of hand surgery, European volume","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1177/17531934251330975","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We hypothesized that metacarpophalangeal (MCP) joint hyperextension can be significantly reduced in patients with trapeziometacarpal joint (TMJ) osteoarthritis through TMJ dual mobility implant arthroplasty. Using registry data and propensity score matching, we compared 37 patients with preoperative MCP joint hyperextension >20° with 111 control patients with ≤20° extension. Before surgery, mean MCP joint extension was 34° (95% confidence interval 31-37) in the hyperextension group and 10° (95% CI 8-11) in the control group. Hyperextension was significantly reduced to 9° (95% CI 6-13) 6 weeks after surgery and was not significantly higher than the measured 5° (95% CI 4-7) in the control group. It remained stable for up to 2 years. Secondary outcomes including key pinch strength, pain, the brief Michigan Hand Outcomes Questionnaire and complications did not differ between groups at 2 years. Trapeziometacarpal joint implant arthroplasty can correct preoperative MCP joint hyperextension without additional procedures at the MCP joint.Level of evidence: III.
我们假设通过TMJ双活动植入关节置换术可以显著降低斜跖关节(TMJ)骨关节炎患者的掌指关节(MCP)过伸。使用注册数据和倾向评分匹配,我们比较了37例术前MCP关节过伸bbb20°患者和111例关节过伸≤20°的对照患者。术前,过伸组MCP关节平均伸展度为34°(95%可信区间31-37),对照组为10°(95%可信区间8-11)。术后6周,超伸度显著降低至9°(95% CI 6-13),且不显著高于对照组测量的5°(95% CI 4-7)。它保持稳定长达2年。次要结果包括关键捏捏强度、疼痛、简短的密歇根手结局问卷和并发症,两组在2年时没有差异。斜方腕关节置换术可以矫正术前MCP关节过伸,无需在MCP关节处进行额外的手术。证据水平:III。