Factors Associated with Timing of Syndactyly Release in the United States.

Background: Syndactyly is one of the commonly encountered congenital hand anomalies. However, there are no strict guidelines regarding the timing of surgical release. The aim of this study was to investigate the age and factors associated with syndactyly release in the United States. Methods: A retrospective analysis of the California and Florida State Ambulatory Surgery and Services Databases for patients aged 18 years or younger who underwent syndactyly release surgery between 2005 and 2011 was performed. Demographic data that included the age at release, gender, race and primary payor (insurance) was collected. A sub-analysis was performed to compare the demographic characteristics between those patients undergoing syndactyly release before 5 years of age ('Early Release') and at (of after) 5 years ('Late Release'). Results: A total of 2,280 children (68% male, 43% Caucasian) were identified. The mean age of syndactyly release was 3.6 years, and 72.9% of patients underwent release before the age of 5 years. A significantly larger proportion of females (p = 0.002), and Hispanics and African Americans (p = 0.024), underwent late release compared to early release. Additionally, a significantly higher percentage of patients undergoing late release utilised private insurance (p = 0.005). However, the actual differences in gender, race and primary payor were small. Conclusion: The majority of syndactyly releases were performed before school age, which is the primary goal in the management of syndactyly. While gender and racial disparities in the surgical treatment of syndactyly may exist, the differences in the present study were relatively small. Level of Evidence: Level III (Therapeutic).