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First Carpometacarpal Joint Anatomy and Osteoarthritis: MR Imaging Overview
Kanagasabai Kamalasekar1, Reddy Ravikanth1
1Department of Radiology, Holy Family Hospital, Thodupuzha, Kerala, India.
Abstract:
The first carpometacarpal (CMC) joint consists of seven ligaments. The magnetic resonance imaging (MRI) examination of the first CMC joint should be performed in a high field 1.5/3 T MRI with a dedicated hand coil for high-resolution images. Degeneration of anterior oblique ligament (AOL) is the most important cause for the development of osteoarthritis of first CMC joint. Since the AOL undergoes a predictable pattern of alteration at its metacarpal attachment as degeneration proceeds, MRI imaging can provide an accurate assessment of this ligament.
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