J Korean Orthop Assoc.  1987 Oct;22(5):1141-1146. 10.4055/jkoa.1987.22.5.1141.

Triphalangeal Thumb: Case Report

Abstract

Thiphalangeal thumb is characterized by interposition of an extraphalanx between the two normal phalanges of the thumb. The extra-phalanx varies from a small triangular bone to a normal phalanx in what appears to be a thumbless five fingered hand. Triphalangeal thumbs are divided into three types and the treatment differs from associated anomalies and clinical features. We had a bilateral triphalangeal thumbs treated by closed wedge osteotomy to the extra-phalanx.

Keyword

Triphalangeal thumb; Treatment

MeSH Terms

Fingers
Hand
Osteotomy
Thumb*
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