Buckle injuries present with no or minimal deformity. There is usually pain and tenderness directly over the fracture site, and limited range of motion in the wrist and hand.ĭeformity depends on the degree of fracture displacement. These injuries can occur in conjunction with more proximal forearm fractures, such as Monteggia fracture-dislocations, supracondylar humeral fractures and hand fractures. Volar (anterior) displacement of the distal fragment is usually the result of a fall on a flexed wrist. Extension of the wrist at the time of injury causes the distal fragment to be displaced dorsally (posteriorly). ![]() The most common mechanism of injury is a fall on an outstretched hand. Up to 13% incidence of other arm injuries (hand, forearm, elbow) occur on the same side. Metaphyseal fractures have a peak incidence during the adolescent growth spurt (girls aged 11-12 years, boys 12-13 years) due to weakening through the metaphysis with rapid growth. How common are they and how do they occur? The ulna may have a complete fracture, greenstick fracture, or a plastic deformityģ. The radius is commonly a complete fracture. Most complete metaphyseal fractures involve both the radius and ulna. See fracture education module for more informationĬomplete: A fracture that extends through both cortices. Although there is a disruption to the cortical bone, the integrity of the bone is minimally compromised, resulting in different patient management from other fractures
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