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Arthroscopic Partial Trapeziectomy for Thumb Carpometacarpal Joint Osteoarthritis: 5-Year Follow-up.

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Osteoarthritis of the thumb carpometacarpal (CMC) joint is the most common type of arthritis of the hand. The goal of the study was to evaluate clinical results and radiographic changes… Click to show full abstract

Osteoarthritis of the thumb carpometacarpal (CMC) joint is the most common type of arthritis of the hand. The goal of the study was to evaluate clinical results and radiographic changes after arthroscopic partial trapeziectomy combined with ligament shrinkage and K-wire fixation to treat thumb CMC joint arthritis. From February 2013 to March 2014, 24 patients with thumb CMC joint arthritis received this arthroscopic procedure. We investigated the preoperative and postoperative Modified Mayo Wrist Score (MMWS); Disabilities of the Arm, Shoulder and Hand (DASH) score; radiographic changes; and associated complications. Sixteen patients completed 5 years of functional score and radiographic follow-up. Comparison of preoperative and postoperative MMWS and DASH scores showed significant improvement after the arthroscopic procedure. Pre-operative and postoperative evaluation of radiographic changes showed significant differences in the CMC joint distance, scaphoid-metacarpal distance, trapezium-metacarpal distance, and metacarpal prominence distance. This arthroscopic procedure is an effective and less invasive method for the treatment of CMC joint arthritis. This procedure can improve clinical function, preserve the mechanical height of the trapezium, and increase CMC joint space. We report our surgical technique and some pitfalls that required attention during the arthroscopic procedure. [Orthopedics. 202x;xx(x):xx-xx.].

Keywords: procedure; cmc joint; arthroscopic partial; partial trapeziectomy; thumb carpometacarpal; joint

Journal Title: Orthopedics
Year Published: 2022

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