Thumb Duplication Surgical Treatment: Outcomes and Results

Author:

Monjardino Maria Pia1ORCID,Carvalho Marcos,Cardoso Pedro Sá1,Ling Tah Pu1,Alves Cristina1

Affiliation:

1. Department of Pediatric Orthopaedics, Hospital Pediátrico de Coimbra – CHUC, EPE, Coimbra, Portugal

Abstract

Aim This study aims to evaluate functional and esthetic outcomes of thumb duplication correction in pediatric age. Methods Retrospective study including all pediatric patients with thumb duplication undergoing surgical treatment between 2012 and 2017. We analyzed demographic data, surgical technique, and surgical outcomes considering Tada, Horii, and Tien scores, according to the following parameters: active mobility of the metacarpophalangeal and interphalangeal joints, stability, alignment, and family’s opinion about cosmetic and function of the thumb. The Wassel-Flatt classification was used to classify the duplicated thumbs. Results A total of 11 patients were included, predominantly male (ratio 1.8:1), with a median age at time of surgery of 19[10-26] months and a median follow-up time after surgery of 23 [3-63] months. The Wassel- Flatt type IV thumb was the most frequent (73%). The postoperative evaluation revealed that 82% of patients had good results in Tada score, 73% had good results in Horii score, and all patients showed good results in Tien score. We found a relation between lower age and fair postoperative alignment ( P = .047) and between fair postoperative alignment and fair final Tada ( P = .022), Horii ( P = .006), and Tien ( P = .009) scores. Conclusions Excision and reconstruction procedures are good options in the treatment of thumb duplication providing good clinical results, with excellent parent satisfaction. Timing of surgery is important for favorable esthetic outcomes, while angular deformity is a determining factor that for postoperative dissatisfaction.

Publisher

SAGE Publications

Subject

Pediatrics,Pediatrics, Perinatology and Child Health

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