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On-Top-Plasty for Atypical Thumb Duplication: A Case Report With 10 Year Follow-up
Albert Pons-Riverola1, Eric Camprubi-Garcia1, Sergi Barrera-Ochoa1
11 Universitat de Barcelona, Barcelona, Spain.
Background:
A very uncommon pattern of thumb duplication consists of an ulnar-side floating thumb and a radial-side distally hypoplastic thumb.
Methods:
We report the case of a 15-month-old child with this type of thumb duplication on his right hand treated with an on-top-plasty technique. The ulnar-side segment was pedicled and transferred to the lateral thumb, which was distally resected.
Results:
A well-aligned and widely mobile thumb with a wide first web and an excellent cosmetic appearance was exhibited 10 years after surgery.
Conclusions:
On-top-plasty technique might be amenable to reconstruct certain atypical thumb duplications.
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