Severe Type 1 Thumb Boutonniere Deformity with Interphalangeal Joint Dislocation in a Young Patient: A Case Report

In prior literature, MCP arthroplasty with IP arthrodesis has been recommended in severe thumb boutonniere deformities, but this may be inappropriate for younger, higher-demand patients. Surgeons should obtain a comprehensive understanding of each patient's anatomy and functional goals to best develop treatment strategies. The success of MCP arthrodesis and temporary IP joint pinning in this population is evidenced by the maintained IP joint range of motion and lack of dislocation with pinch and grip activities at 1 year follow-up.