Analysis of Postoperative Metacarpal Subsidence After Total Trapeziectomy and Suture-Button Suspensionplasty

Nowadays, suspensionplasty has become a popular surgical option for treating first carpometacarpal joint osteoarthritis. Compared to the conventional ligament reconstruction and tendon interposition procedure, suture-button trapeziectomy, also known as hematoma distraction arthroplasty, can provide effective pain relief and good functional results. However, without bone or ligamentous support, progressive metacarpal subsidence may occur after simple trapeziectomy with suture-button suspensionplasty remains unclear. In this study, we aim to analyze the possible causes and risk factors contributing to metacarpal subsidence following total suspensionplasty.