Wu JianPing, Shi WeiZhe, Zhao Hai, Li JingChun, Li YiQiang, Hong Kai, Yuan Zhe, Zhu MingWei, Liu YuanZhong, Canavese Federico, Xu HongWen
Department of Pediatric Orthopaedics, Guangzhou Women and Children's Medical Center, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou, China.
Department of Pediatric Orthopedic, Chenzhou No.1 People's Hospital, Chenzhou, China.
Front Pediatr. 2024 Jan 12;11:1286662. doi: 10.3389/fped.2023.1286662. eCollection 2023.
This study aimed (i) to evaluate the radiographic characteristics of patients with congenital thumb duplication (CTD) type C2 according to the classification of Wu et al., (ii) to describe the various subtypes of type C2 CTD, and (iii) to propose a classification system that allows the identification of different surgical strategies based on the radiographic anatomy of this specific subtype of duplication.
We retrospectively reviewed 92 patients (92 thumbs) with type C2 CTD according to the Wu et al. classification in our institution between August 2015 and April 2021. All CTDs were classified according to the interphalangeal joint alignment of the main thumb at the posteroanterior radiograph of the thumb before operation: type I (no deviation), type II (ulnar deviation), and type III (radial deviation).
All CTDs ( = 92) could be classified according to the proposed classification system: 76 (82.6%) were type I, 10 (10.9%) were type II, and six were type III (6.5%). According to the Kim system of subtype classification, there were 55 (59.8%) type 1, 24 (26.1%) type 2, and 13 (14.1%) type 3 cases.
The suggested classification completes the Wu et al. system and has the potential to guide surgical treatment in children with type C2 CTD.
III.
本研究旨在（i）根据Wu等人的分类方法评估C2型先天性拇指重复畸形（CTD）患者的影像学特征，（ii）描述C2型CTD的各种亚型，以及（iii）提出一种分类系统，该系统能够根据这种特定重复畸形亚型的影像学解剖结构确定不同的手术策略。
我们回顾性分析了2015年8月至2021年4月间在我院根据Wu等人的分类方法诊断为C2型CTD的92例患者（92个拇指）。所有CTD均根据术前拇指正位X线片上主拇指指间关节的对线情况进行分类：I型（无偏斜）、II型（尺侧偏斜）和III型（桡侧偏斜）。
所有CTD（n = 92）均可根据所提出的分类系统进行分类：76例（82.6%）为I型，10例（10.9%）为II型，6例（6.5%）为III型。根据Kim亚型分类系统，有55例（59.8%）为1型，24例（26.1%）为2型，13例（14.1%）为3型。
所建议的分类完善了Wu等人的分类系统，有可能指导C2型CTD患儿的手术治疗。
III级。
