How does Fixation Alignment Affect Surgical Outcomes in Arthrodesis for Thumb Carpometacarpal Osteoarthritis?

ABSTRACT:

Purpose

Arthrodesis is a traditional surgical procedure for treating thumb carpometacarpal (CMC) osteoarthritis. Previous studies have investigated surgical outcomes, focusing on the fixation technique, bone union rate, and surgical complications but not on the postoperative alignment of the thumb CMC joints. Therefore, we aimed to investigate how thumb fixation alignment affects the surgical outcomes of thumb CMC arthrodesis.

Materials and methods

Twenty-six patients (28 thumbs) who achieved bone union after arthrodesis with more than 1-year follow-up were retrospectively analyzed. We measured the radial abduction and palmar abduction angles and change in thumb length (Δthumb length) on postoperative radiographs and the first metacarpal rotation angle on postoperative compu

SUBMITTER: Komura S 

PROVIDER: S-EPMC12456986 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature