不同类型三指节拇指中第一掌骨长度变化对治疗的影响。

Implications for treatment of variations in length of the first metacarpal in different types of triphalangeal thumbs.

作者信息

Zuidam J M, Dees E E C, Selles R W, Hovius S E R

机构信息

Department of Plastic and Reconstructive Surgery, Erasmus MC, University Medical Center Rotterdam, The Netherlands.

出版信息

J Hand Surg Eur Vol. 2010 Jan;35(1):65-9. doi: 10.1177/1753193408095881.

DOI:10.1177/1753193408095881

PMID:20100712

Abstract

Abnormal function in the triphalangeal thumb is partly due to its extra length, which is due not only to the extra phalanx, but also to differences in the length of the first metacarpal. This study investigated whether the additional length of the first metacarpal is influenced by the growth plate location alone, or also by the type of triphalangeal thumb. Fifty-nine hands in 37 patients with triphalangeal thumbs were examined for thumb type (delta 31, trapezoid nine and full type 19), growth plate location and relative length of the first metacarpal. The first metacarpals in all three types of triphalangeal thumbs were significantly longer than in the normal population. The length of the first metacarpal was related to the site of the growth plate. The type of triphalangeal thumb did not affect the length. These findings suggest that a corrective procedure on the first metacarpal should be considered in all types of triphalangeal thumbs.

摘要

三节拇指的功能异常部分归因于其额外的长度，这不仅是由于多了一节指骨，还由于第一掌骨长度的差异。本研究调查了第一掌骨额外的长度是仅受生长板位置影响，还是也受三节拇指类型的影响。对37例患有三节拇指的患者的59只手进行了检查，以确定拇指类型（δ型31例、梯形9例和全型19例）、生长板位置和第一掌骨的相对长度。所有三种类型的三节拇指的第一掌骨均明显长于正常人群。第一掌骨的长度与生长板的位置有关。三节拇指的类型不影响其长度。这些发现表明，对于所有类型的三节拇指，都应考虑对第一掌骨进行矫正手术。