Congenital trifalangeal thumb duplication. Case report

Authors

Abstract

Thumb duplication is the most frequent form of preaxial polydactyly, with an estimated incidence of 1 to 2 cases per 3,000 live births. However, the presence of a triphalangeal thumb is rare; it is commonly accompanied by other types of malformations. A 3-year-old boy is presented, attended at the Carlos Manuel de Céspedes Hospital in Bayamo in 2022 for presenting an extra finger on the right hand since birth. He was examined and underwent surgical treatment by the orthopedics team to correct the deformity. Surgical resection of the radial-side digit was performed with reconstruction of the capsule and ligaments of the digit using elements from the removed digit; although the preserved digit has 3 phalanges, its function is acceptable. Furthermore, when evaluating the length difference compared with the thumb of the other hand, it is barely imperceptible, so it was decided not to shorten the digit. The results of the applied treatment are evaluated as acceptable both aesthetically and in thumb function.

Downloads

Download data is not yet available.

Author Biography

Ismael Lao Lafai, Hospital Provincial Carlos Manuel De Céspedes Bayamo. Granma, Cuba.

Departamento de Ortopedia y Traumatología

Published

2026-10-20

How to Cite

1.
Lao Lafai I, Riquenes Sierra Y, Pompa Ramírez DL. Congenital trifalangeal thumb duplication. Case report. RM [Internet]. 2026 Oct. 20 [cited 2026 Oct. 24];30:e3241. Available from: https://revmultimed.sld.cu/index.php/mtm/article/view/3241

Issue

Section

CASOS CLÍNICOS