Simultaneous Opponensplasty and Free Gracilis Muscle Flap for Thenar Reconstruction after Arteriovenous Malformation Resection

Abstract

We report the case of a thenar eminence arteriovenous malformation presenting with continuous growth and pain that was treated with surgical excision after embolization. Extracapsular resection compromised thenar muscles which function was reconstructed with extensor indicis proprius transfer for opposition and abduction, and neurotized free gracilis muscle flap for opposition and adduction, as well as thenar eminence reconstruction.

Keywords

• thenar reconstruction
• arteriovenous malformation
• opponensplasty
• free gracilis muscle flap