Wassel's type i modification of duplicate thumb?

Abstract

Patients with polydactyly of the thumb demonstrate very miscellaneous manifestations, from a rudimentary floating type to a complex one. The Wassel classification system is a useful method for classifying duplicated thumbs. Bifurcation at the metacarpophalangeal joint (Type IV) is the most common type. Although Wassel classification is good, there are few shortcomings in it. Removing the nondominant part and reconstructing the dominant part are the most common procedures for thumb duplication. The aim of surgical intervention that addresses duplication thumbs is to attain a firm, mobile thumb of appropriate shape and acceptable size. Surgical concepts and techniques are still evolving. Here, we present an interesting case report of Wassel's Type I modification of duplicate thumb.

Keywords

• duplicate thumb
• polydactyly
• wassel classification