35-year-old female status post thumb injury. Assess the collateral ligaments of the left thumb MCP. Patient presents with thumb pain. LIGAMENTS: The there is perhaps mild thickening and increased signal abnormality within the proximal fibers of the ulnar collateral ligament which otherwise appears intact. These findings are suggestive of a sprain or prior injury of the ulnar collateral ligament. There is no evidence to suggest a Stener lesion. There is increased signal abnormality and indistinctness of the radial collateral ligament, suggesting complete rupture/tearing of the radial collateral ligament.TENDONS: The imaged extensor and flexor tendons are normal in appearance. BONES: No bone marrow signal abnormality is identified. There is slight ulnar subluxation of the proximal phalanx with respect to the first metacarpal. The interphalangeal joint and basilar joint of the first digit are unremarkable.ADDITIONAL
Complete rupture of the radial collateral ligament of the MCP joint of the thumb as described above.