Caetano Edie Benedito, Nakamichi Yuri da Cunha, Alves de Andrade Renato, Sawada Maico Minoru, Nakasone Mauricio Tadeu, Vieira Luiz Angelo, Sabongi Rodrigo Guerra
Department of Orthopedics of the Pontifical Catholic University of São Paulo, Paulo, Brazil.
Open Orthop J. 2017 Nov 23;11:1321-1329. doi: 10.2174/1874325001711011321. eCollection 2017.
This paper reports anatomical study of nature, incidence, innervation and clinical implications of Flexor Pollicis Brevis muscle (FPB).
The anatomical dissection of 60 limbs from 30 cadavers were performed in the Department of Anatomy of Medical School of Catholic University of São Paulo.
The superficial head of FPB has been innervated by the median nerve in 70% and in 30% it had double innervation. The deep head of FPB were absent in 14%, in 65%, occurred a double innervation. In 17.5% by deep branch of ulnar nerve and in 3.6% by recurrent branch of median nerve.
The pattern of innervation more frequent in relationship to the flexor pollicis brevis muscle and should be considered as a normal pattern is that superficial head receives innervation of branches of median nerve and the deep head receives innervation of ulnar and median nerve.
本文报告了拇短屈肌（FPB）的性质、发生率、神经支配及临床意义的解剖学研究。
在圣保罗天主教大学医学院解剖学系对30具尸体的60条肢体进行了解剖。
拇短屈肌浅头70%由正中神经支配，30%为双重支配。拇短屈肌深头14%缺如，65%出现双重支配。17.5%由尺神经深支支配，3.6%由正中神经返支支配。
拇短屈肌最常见的神经支配模式，应视为正常模式，即浅头接受正中神经分支的支配，深头接受尺神经和正中神经的支配。
