Pronation angle changes with progression of trapeziometacarpal joint osteoarthritis.

Tsukamoto, Kazuya; Kuroiwa, Tomoyuki; Ibara, Takuya; Fujita, Koji · J Hand Surg Eur Vol · 2025

cross_sectional · Level IV

Where this comes from

Abstract

We evaluated thumb pronation angles in patients with trapeziometacarpal joint osteoarthritis. Patients with a significantly decreased pronation angle showed a moderate correlation with the Eaton-Littler classification. Weakness of opponens pollicis function is associated with the development of trapeziometacarpal joint osteoarthritis.<b>Level of evidence:</b> III.

Medical subject headings

Anatomy