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Pronation angle changes with progression of trapeziometacarpal joint osteoarthritis
Kazuya Tsukamoto1, Tomoyuki Kuroiwa1, Takuya Ibara2
1Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Bunkyo-ku, Tokyo, Japan.
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.Level of evidence: III.
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