Wu Feiran, Mehta Saurabh Sagar, Dickson David, Catchpole Dee, Ng Chye Yew
1 Upper Limb Unit, Wrightington Hospital, Hall Lane, Wigan, UK.
2 Royal Stoke University Hospital, Stoke-On-Trent, UK.
J Hand Surg Eur Vol. 2018 Jun;43(5):554-557. doi: 10.1177/1753193418765068. Epub 2018 Mar 27.
Arthrodesis of the distal interphalangeal joint of the finger is an effective salvage treatment for end-stage arthropathy of the joint. This study aimed to evaluate the effect of simulated fusion of individual distal interphalangeal joints on the overall grip strength of the hand. Custom moulded thermoplastic splints were used to simulate fusion by immobilizing the index, middle, ring and little fingers' distal interphalangeal joints in turn in both hands of 56 healthy participants. Testing was performed with no immobilization and after immobilization of each of the individual digits. Grip strengths reduced significantly following immobilization of the distal interphalangeal joint. The degree of reduction became progressively more pronounced from the index to the little fingers (12%, 18%, 24% and 25%, respectively) and was similar for the dominant and non-dominant hands. This information may have clinical application when counselling patients regarding fusion of the distal interphalangeal joint of the fingers.
手指远侧指间关节融合术是治疗该关节终末期关节病的一种有效挽救性治疗方法。本研究旨在评估单个远侧指间关节模拟融合对手整体握力的影响。使用定制模制热塑性夹板，通过依次固定56名健康参与者双手的示指、中指、环指和小指的远侧指间关节来模拟融合。在未固定以及每次固定单个手指后进行测试。远侧指间关节固定后握力显著降低。从示指到小指，握力降低程度逐渐更明显（分别为12%、18%、24%和25%），优势手和非优势手情况相似。在就手指远侧指间关节融合向患者提供咨询时，这些信息可能具有临床应用价值。
