Primary Outcome Measures:
- The goal of this study is to prospectively evaluate the natural history of congenital trigger thumbs to determine the true incidence of spontaneous resolution. [ Time Frame: 4 years ] [ Designated as safety issue: No ]
The following physical exam measurements will be made at the first visit and all subsequent visits until completion of the study: flexion contracture of the interphalangeal joint of both thumbs (resolution of deformity defined as when flexion contracture is 0°), metacarpal-phalangeal joint laxity, and amount interphalangeal joint angular deformity.
Trigger thumb is a stenosis tenosynovitis of the flexor pollicis longus tendon of the thumb1. The eitiology of congenital trigger thumb is unclear with many authors proposing both hereditary and acquired causes2-4. Surgical release of congenital trigger thumbs has been recommended as definitive treatment, though controversy exists over the natural history of congenital trigger thumbs5-8. There have been a number of studies looking at the natural history of congenital trigger thumbs with spontaneous resolution rates ranging from 0-96% over a median duration of follow up that ranged from 6 months to 48 months9-14. Based on our clinical experience, the investigators do not feel that congenital trigger thumbs resolve spontaneously and that definitive treatment requires surgical release. However, the investigators need to do further scientific research into the natural history of trigger thumbs to determine how often trigger thumb resolves without needing surgical intervention.