Patient-induced stress test of the first metacarpophalangeal joint: a radiographic assessment of collateral ligament injuries.
The metacarpophalangeal (MCP) joint of the thumb is frequently injured, and the extent of soft-tissue injury is sometimes difficult to determine clinically. Routine radiographs are often normal, without evidence of a fracture. Radiographs obtained during patient-induced stress of the first MCP joint can show significant collateral ligament injury. It is important to make an early diagnosis of collateral ligament rupture.
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008023:Ligaments, Articular / Q000000981:diagnostic imaging / Q000293:injuries*; D008297:Male; D011859:Radiography; D013314:Stress, Mechanical; D013933:Thumb / Q000000981:diagnostic imaging*