3 years ago

Nail size and appearance following nail fusion plasty of thumb duplication.

Anyuan Wang, Hongqiang Wu, Long Wang, Zongwei Zhou, Jian Ding, Weiyang Gao

Publication date: Available online 7 January 2019

Source: Journal of Plastic, Reconstructive & Aesthetic Surgery

Author(s): Anyuan Wang, Hongqiang Wu, Long Wang, Zongwei Zhou, Jian Ding, Weiyang Gao

Abstract
Purpose

To evaluate nail appearance after nail fusion plasty to treat thumb duplication.

Methods

A modified form of nail fusion plasty was performed on 17 reconstructed thumbs of 16 children with thumb duplications, commencing in January 2010. We assessed nail width and nail, lunular, and nail fold deformities using the Wang-Gao scoring system. All 17 thumbs were evaluated over an average of 32 months (range, 12–48 months) of follow-up.

Results

One patient with bilateral thumb deformities was excluded. The width ratios of 15 reconstructed nails (compared with those of the contralateral thumbs) were 82–118% (average, 97%). Nine thumbs exhibited nail ridges or gaps; the average ridge/gap score was 1.23 (maximum, 2). Six thumbs exhibited lunular deformities; the average score was 1.58 (maximum, 2). Another six thumbs evidenced nail fold deformities; the average score was 1.64 (maximum, 2). Only one thumb exhibited nail dehiscence. Two thumbs had no nail deformity. The final assessments were excellent in 14 cases, good in 2 cases, and fair in 1 case.

Conclusions

We could not significantly reduce the deformity rate of the nail plate, nail fold, or lunula using our new technique, but the deformities were much less marked than previously. Nail fusion plasty usefully enlarges the nail and pulp in patients with hypoplastically duplicated thumbs.

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