Department of Hand Surgery, Schulthess Klinik, Zurich, Switzerland.
Department of Teaching, Research and Development, Schulthess Klinik, Zurich, Switzerland.
J Hand Surg Eur Vol. 2021 Jun;46(5):496-503. doi: 10.1177/1753193420977244. Epub 2020 Dec 3.
The purpose of this prospective study was to evaluate the 5-year outcomes in patients after proximal interphalangeal joint arthroplasty using the surface replacing implant, CapFlex-PIP. Ninety-two prosthesis were implanted and 65 patients with 68 implants were available for follow-up. The brief Michigan Hand Outcomes Questionnaire score improved significantly from 45 (SD 15) before surgery to 71 (SD 17) at 5 years. On the numeric rating scale, pain during activities decreased significantly from 6.4 (SD 1.9) to 1.8 (SD 1.9). Range of motion of the joints increased significantly from 45° (SD 21) to 54° (SD 24). An axis deviation of more than 5° was found in 65% of the joints before surgery, but only in 25% at 5 years. Soft tissue reoperations were performed on eight patients. Four out of 92 implants underwent revision for stiffness or implant loosening. In three implants, the distal component migrated without needing revision. Overall, the CapFlex-PIP implant demonstrates favourable medium-term results in surface replacing arthroplasty of the proximal interphalangeal joint. IV.
本前瞻性研究旨在评估使用表面置换植入物 CapFlex-PIP 进行近指间关节关节成形术后 5 年的患者的结果。共植入 92 个假体，65 名患者的 68 个假体可进行随访。简明密歇根手功能问卷评分从术前的 45（SD15）显著改善至 5 年时的 71（SD17）。在数字评分量表上，活动时的疼痛从 6.4（SD1.9）显著减轻至 1.8（SD1.9）。关节活动度从 45°（SD21）显著增加至 54°（SD24）。术前有 65%的关节存在超过 5°的轴偏差，但在 5 年后仅为 25%。对 8 名患者进行了软组织翻修手术。有 4 个植入物因僵硬或植入物松动而进行了翻修。在 3 个植入物中，远端组件发生迁移但无需翻修。总体而言，CapFlex-PIP 植入物在近指间关节表面置换成形术中表现出良好的中期结果。IV。
