Use of autologous vascularized joint flap for the thumb MCP joint arthroplasty

Occupational hand-related fractures are the most frequently encountered traumatic injuries sustained at work. Lesions in this area, especially those that combine bony and soft tissue defects, often require complex grafting techniques. Flaps for soft tissues are widely used, but those incorporating bones and joints have not been widely assessed. In this study, we performed a thumb metacarpophalangeal joint (MCPJ) reconstruction using an autologous vascularised joint flap from a non-salvageable 5th finger. Post-operatively, and on follow-up after 5 months, the patient restored thumb length, adequate range of movement (active 0°/65° and passive 20°/70°) alongside decent aesthetics. Compared to similar cases, this technique has many advantages over alternative interventions. LEVEL OF EVIDENCE: Level IV.