Original CommunicationsOsteochondral fracture of the triquetrum: A case report*,**
Section snippets
Case report
A 21-year-old woman fell on the outstretched hand while snowboarding. She was seen at the hospital 2 days after the injury. She complained of pain at the volar ulnar aspect of the left wrist. Physical examination revealed pisiform instability, and a click was detected by grinding the pisiform against the triquetrum. Wrist motion was decreased as a result of the pain. Flexor carpi ulnaris, ulnar artery, and ulnar nerve functions were intact. A radiograph was suggestive of a triquetrum fracture
Discussion
Triquetrum fractures are the second most common group of carpal bone fractures. There are 2 types of triquetral fractures: dorsal chip fractures are commonly caused by the ulnar styloid, and body fractures result from excessive force to the wrist.2, 3, 4, 5, 6 Osteochondral fractures of the triquetrum are rare. Pevny and Rayan7 described a 17-year-old adolescent boy who was injured while playing volleyball. Maeda and Takatsu8 reported a 17-year-old adolescent boy who fell on the hand while
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No benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this article.
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Reprint requests: Takashi Suzuki, MD, Department of Orthopaedic Surgery, National Nagano Hospital, 1-27-21 Midorigaoka, Ueda City, 386-8610, Japan.