Analysis of the hand deformities of 53 cases of congenital constriction band syndrome

ZHONG Wen-yao; SUN Li-ying; YIN Yue-han; ZHAO Zong-xuan; GUO Yang; ZHAO Jun-hui; TIAN Wen

doi:10.3969/j.issn.2095-252X.2025.08.002

Abstract：Objective To explore the clinical manifestations of hand deformities in congenital constriction band syndrome,and enrich the understanding of clinical presentation associated with this condition and guide clinical assessment and treatment.Methods From January 2012 to January 2024,patients with constriction band syndrome admitted to our clinical and research center were reviewed.Clinical data such as age,gender,site of involvement,and associated deformities were recorded.Clinical photograph and X-ray data were used to assess the manifestations and severity of phalangeal hypoplasia,constricting bands,and syndactyly.Results A total of 53 patients were included,with 23 males(43.40%)and 30 females(56.60%),aged 0.92-17 years with a mean age of(3.92±4.01)years.Bilateral hand involvement was observed in 27 cases,isolated left involvement in 11 cases,right in 14 cases,and one case with normal hand but forearm involvement.Among 530 fingers,type Ⅰ phalangeal hypoplasia accounted for 13.02%,type Ⅱ for 28.87%,and type Ⅲ for 9.81%;21.87%of the 530 fingers had constricting band,with type Ⅰ at 6.42%,type Ⅱ at 7.74%,type Ⅲ at 4.53%,type Ⅳ at 5.28%,and multiple bands at 3.21%;among 212 involved webs,type Ⅰ syndactyly accounted for 1.89%,type Ⅱ for 8.68%,type Ⅲ for 2.26%,type Ⅳ for 3.02%,type Ⅴ for 1.70%,type Ⅵ for 0.75%,type Ⅶ for 1.70%,and type Ⅷ for 2.83%.Conclusions Hand deformities in congenital constriction band syndrome are complex.This study explores the manifestation and classification of phalangeal hypoplasia,constricting bands,and syndactyly.The outcomes would help guide the assessment and surgical treatment planning of hand deformities associated with this condition,and provide references for research on the severity grading of hand deformities.