Results after surgical treatment of thumb duplication: A retrospective review of 33 thumbs

Abstract

Results The mean postoperative follow-up was 3 years and 11 months. According to Wassel's classification, the series included 12 type II duplications, two type III, 14 type IV, two type V, one type VI and two type VII. The surgical approaches consisted of simple resection of the most hypoplastic thumb (16 thumbs), the Bilhaut-Cloquet procedure (ten thumbs) and resection associated with reconstructive surgery (seven thumbs). The Bilhaut-Cloquet procedure was used in three cases for treatment of type IV duplication On the basis of the Tada scoring system, we obtained 24 good results, eight fair results and one poor result. Conclusion Based on our results, we recommend the use of Bilhaut-Cloquet procedure not only for the treatment of type II duplication when the thumbs are both hypoplastic and symmetric, but also for type IV duplication with the same clinical parameters. For the other types of duplications, we consider that resection of the most hypoplastic thumb associated with reconstructive surgery is the best surgical approach. For type VII duplication, ablation of the triphalangeal thumb remains the best option. We do not recommend osteotomy at the first surgery.

Correction of Thumb Duplication: A Systematic Review of Surgical Techniques

“…5 The remaining studies are at best described as cohort studies, reporting results from patients undergoing correction of thumb duplication at a given institute. In essence, these are case series 1,2,[13][14][15][16][17][18][19] with no formal comparative design implemented. Sample sizes ranged from 19 15 to 121 16 thumbs.…”

“…Two studies use the Tada scoring system 1,19 and three used modified versions. [14][15][16] Dijkman et al used a battery of assessments including the Rotterdam assessment system, 20 visual analog scales (VASs) for cosmetic outcomes, overall satisfaction, pain, and also geometric data regarding thumb size. 5 Four studies used novel outcome scores.…”

Comparison of Functional Outcome Scores in Radial Polydactyly

“…The Tada score (or modified versions of this assessment system) has been applied most frequently to describe outcomes of treatment of radial polydactyly [7][8][9][10][11][12][13][14][15][16] . However, the results of our study indicate that the JSSH system is better suited for this purpose.…”

“…A comprehensive scoring system was first introduced by Tada et al in 1983 7 . This commonly used [8][9][10][11][12] and frequently modified 13-16 system consists of scores for range of motion, joint instability, and malalignment parameters. Consequently, the definition of outcome is based solely on functional parameters in the Tada scoring system.…”

Bilateral Thumb Polydactyly: Case Report

“…There are variable therapeutic methods; therefore, the treatment choice depends on the polydactyly group, and the duplication variation [6][7][8]. It also requires an evaluation of the bone and surrounding structures.…”