Ulna Fracture
An ulna fracture is a broken bone, break in the ulna bone, one of the two bones in the forearm. It is often associated with a fracture of the other forearm bone, the radius fractures, radius. 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. The ulna bone can also break after falling on the forearm or falling on an outstretched arm. 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. Cause 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. An ulna fracture can also result from falling on the forearm or falling ...
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Broken Bone
A bone fracture (abbreviated FRX or Fx, Fx, or #) is a medical condition in which there is a partial or complete break in the continuity of any bone in the body. In more severe cases, the bone may be broken into several fragments, known as a ''comminuted fracture''. A bone fracture may be the result of high force impact or stress, or a minimal trauma injury as a result of certain medical conditions that weaken the bones, such as osteoporosis, osteopenia, bone cancer, or osteogenesis imperfecta, where the fracture is then properly termed a pathologic fracture. Signs and symptoms Although bone tissue contains no pain receptors, a bone fracture is painful for several reasons: * Breaking in the continuity of the periosteum, with or without similar discontinuity in endosteum, as both contain multiple pain receptors. * Edema and hematoma of nearby soft tissues caused by ruptured bone marrow evokes pressure pain. * Involuntary muscle spasms trying to hold bone fragments in place. ...
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