Ulna fracture
Medical condition / From Wikipedia, the free encyclopedia
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An ulna fracture is a break in the ulna bone, one of the two bones in the forearm.[2] It is often associated with a fracture of the other forearm bone, the radius.[1][3]
An ulna fracture can be a single break as in a so called nightstick fracture, which can be caused by someone being hit on the inside of the forearm often by a stick, notably when they are holding their arm up to protect their head from injury.[2][4] The ulna bone can also break after falling on the forearm or falling on an outstretched arm.[2]
Ulna fractures are more common in both men and women before age 40 and women after age 60. Adolescents who play sports are at higher risk.[5]