Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Purpose: This study was intended to characterize the epidemiological features of thumb polydactyly (TP) in South China.
Methods: Clinical records were retrieved from 1 central hospital in South China to identify the patients with a definite diagnosis of TP from January 2004 to January 2017. The cases were classified by their x-ray appearance. The data collected included sex, age at first operation, reoperation, family history, unilateral/bilateral polydactyly, right/left hand involvement in unilateral cases, classification of polydactyly, and the presence of associated congenital anomalies.
Results: A total of 428 patients with a definite diagnosis of TP were identified (278 males and 150 females) involving 483 cases, 373 unilateral and 55 bilateral. A syndrome or associated congenital anomaly was found in 26 (18 unilateral and 8 bilateral cases). A dominant thumb, larger and more developed, was observed in 448 hands (93%), and was the ulnar thumb in 433. Owing to postoperative complications, 31 thumbs (6.4%) underwent reoperation. The average interval from initial surgery to reoperation was 4.8 years.
Conclusions: Thumb polydactyly had a male predominance in this Chinese cohort, mostly occurring on the right hand with an ulnar dominant thumb. Bilateral cases had a higher incidence of associated anomaly and positive family history than unilateral cases. The need for additional surgery for TP might occur as late as 4.8 years after primary surgery.
Type Of Study/level Of Evidence: Therapeutic IV.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jhsa.2020.04.003 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Case of VACTERL Association With Thumb Polydactyly Requiring Surgical Treatment.
J Hand Surg Glob Online
July 2025
Department of Plastic and Reconstructive Surgery, Tokyo Medical University, Tokyo, Japan.
We report a case of a rare type of polydactyly associated with VACTERL association (verebral defects, anal atresia, cardiac defects, tracheo-esophageal fistula,renal anomalies, and limb abnormalities) that was treated surgically in infancy with good results. In this case, the patient had radial and ulnar thumbs of almost equal size, and mild thumb hypoplasia. This thumb is as classified Blauth type Ⅰ thumb hypoplasia and as a type IV triphalangeal thumb in the Rotterdam classification.
View Article and Find Full Text PDFNew Classification System for Radially Deviated Thumb Polydactyly.
J Hand Surg Am
April 2025
Department of Pediatric Orthopedics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. Electronic address:
Purpose: Radially deviated thumb polydactyly (RDTP) is a risk factor for secondary deformities but lacks comprehensive characterization. We developed a new classification system for RDTP based on the preoperative radiographic appearance that should inform surgical approaches: (1) D-shaped, (2) bell-shaped, (3) radial-concave phalanges, and (4) asymmetric Wassel III-like.
Methods: Radially deviated thumb polydactyly patients evaluated from January 2015 to December 2021 were classified into four types based on their preoperative radiographs.
Comparing Surgical Approaches for Thumb Polydactyly Reconstruction in Wassel Type IV: K-wire Fixation Versus Non-K-wire Fixation.
Plast Reconstr Surg Glob Open
April 2025
From the Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan.
Background: Wassel type IV is a common radial polydactyly anomaly characterized by duplication of the proximal phalanges at the metacarpophalangeal joint (MPJ). The primary goal of reconstructive surgery is to achieve a fully functional thumb with appropriate mobility, dimensions, and stable MPJ. This study aimed to compare the outcomes of MPJ reconstruction using either K-wire or non-K-wire fixation for Wassel type IV polydactyly.
View Article and Find Full Text PDFClinical Effects of Distal Phalanges and Nail Bed Fusion in Type III Thumb Duplication.
Plast Reconstr Surg Glob Open
March 2025
From the Department of Hand and Foot, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
Background: This study aimed to investigate the clinical effects of bone fusion distal to the phalangeal epiphyseal plate in treating asymmetrical type III thumb polydactyly, focusing on growth and scar healing.
Methods: In patients with asymmetrical type III thumb syndactyly, the proximal phalanx of the accessory finger, distal epiphyseal plate, and some soft tissue were excised to create a pedicled tissue flap. This flap, containing part of the nail and bone distal to the epiphyseal plate, was subsequently attached to the distal segment of the main finger.
A Novel Method for Achieving Metacarpophalangeal Joint Stability in Cases of Unstable Thumb Duplication: A Report of Two Cases.
Cureus
January 2025
Department of Plastic, Reconstructive, and Hand Surgery, University of Tsukuba, Tsukuba, JPN.
Two factors contribute to the stability of the thumb: static stability provided by the bones, joints, and ligaments, and dynamic stability provided by the muscles. Proximal types of polydactyly, such as Wassel types Ⅴ and Ⅵ, are often associated with thenar dysplasia, which is thought to lack sufficient dynamic stability. Therefore, in cases of proximal polydactyly where instability at the metacarpophalangeal (MCP) joint is severe, static stability becomes important.
View Article and Find Full Text PDF