Comminuted fracture of the ulnar sesamoid of the metacarpophalangeal joint of the thumb: an uncommon injury.
Fracture of the ulnar sesamoid of the metacarpophalangeal joint of the thumb is rare. Injury may be caused as a result of hyperextension or, less frequently, direct trauma. A sesamoid may be incompletely ossified, making it difficult to diagnose the fracture on radiographs. Early recognition of this entity leads to appropriate management. The case of a 26-year-old man who sustained a hyperextension injury of the thumb is presented. Radiographs demonstrated a fracture of the ulnar sesamoid of the thumb metacarpophalangeal joint. The literature regarding this uncommon injury is discussed.
Department of Radiology, Frenchay Hospital, Bristol, UK.
Matthew
M
Shaw
Iain D
ID
Lyburn
William C
WC
Torreggiani
Roland
R
Watura
D000058:Accidental Falls; D000328:Adult; D001696:Biomechanical Phenomena; D002370:Casts, Surgical; D004638:Emergency Treatment / Q000379:methods; D018460:Fractures, Comminuted / Q000145:classification / Q000000981:diagnostic imaging* / Q000209:etiology / Q000628:therapy*; D006801:Humans; D008297:Male; D008662:Metacarpophalangeal Joint / Q000293:injuries*; D010146:Pain / Q000209:etiology; D011859:Radiography; D016059:Range of Motion, Articular; D020127:Recovery of Function; D012716:Sesamoid Bones / Q000293:injuries*; D013933:Thumb / Q000293:injuries*; D016896:Treatment Outcome; D014457:Ulna