Extensor digitorum brevis manus: a cadaveric study and review

Authors:Surekha Dilip Jadhav, B R Zambre
Int J Biol Med Res. 2012; 3(3): 1942 - 1944.  |  PDF File

Abstract

Introduction: The extensor digitorum brevis manus is an atavistic, small muscle which rarely present on the dorsum of the hand. It is often misdiagnosed as ganglions, synovial cyst, soft tissue tumor, giant cell tumor or carpal bosses and results in unnecessary exploratory surgery. Aim: The aim of the present study is to observe the incidence and anatomy of extensor digitorum brevis manus. Material and Methods: Ninety six upper limbs of adult cadavers of unknown sex were studied to note down the incidence, nerve supply and blood supply of extensor digitorum brevis manus. Results: This muscle was observed in 4.1% cadavers. Conclusion: A detail Knowledge of the anatomy and incidence of EDBM muscle is of great practical importance to prevent diagnostic errors and can be used for tendon transfer to restore malfunctioning muscles such as a damaged extensor pollicis longus.