LAS VEGAS — According to presented results, patients who underwent carpometacarpal arthroplasty with metacarpophalangeal fusion had stronger pinch strength compared with patients who underwent carpometacarpal arthroplasty alone.
“Patients with [metacarpophalangeal] MP hyperextension greater than 30° and patients with thenar atrophy both have dysfunctional pinch mechanics. Those with MP hyperextension collapse during pinch and those with thenar atrophy rotate into abduction,” Carissa C. Dock, BS, said in her presentation at the American Academy of Orthopaedic Surgeons
