Isolated fibula fractures usually result from a direct blow. They are relatively uncommon. Since this bone only bears 15 percent of the body weight, patients are often able to walk despite the fracture. Proximal fibular fractures are often the result of external rotation, whereas distal fractures usually result from internal rotation. Repetitive trauma, particularly in runners beginning their training, may result in stress fracture of the distal fibula. A mild soreness caused by a low-velocity injury and a fibula fracture can be treated with immobilization using an elastic wrap (distal fibula) or a knee immobilizer (proximal fibula). More impressive pain and disability can be treated with crutches and casting or Robert Jones splinting. Nonunion is uncommon. Pain medication, cessation of the activity that caused the activity, and the use of ice and elevation are also recommended.
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