If more force were applied the concave side of the bending bone would undergo compression fracture and a bulge would appear - a torus fracture. With greater force, the loaded bone undergoes plastic deformation resulting in clinically evident and radiographically proven bowing of the bone - a bowing fracture. With low energy impact, a longitudinal force is applied down the radius will result in bowing which, when the force is released returns to normal the force results in elastic bowing that is not radiographically apparent since, by the time the film is obtained, the bone has returned to normal. In these situations, the force applied and the angulation of the force results in a variety of injuries. the fall on an outstretched arm or jump from a height) rather than a direct injury (e.g. The majority of forearm and lower leg fractures occur after indirect injury (e.g. At the point where force exceeds the structural integrity of the bone, a complete fracture occurs. Rang 1 describes a continuum of fractures that occur with increasing longitudinal force applied along the length of the bone. Statistical data in this article was reviewed by the AAOS Department of Research and Scientific Affairs.Incomplete fractures are a heterogeneous group of fractures that predominantly occur in the long bones of pediatric patients. Your doctor may recommend follow-up visits for up to one year to ensure that growth is proceeding normally. If the fracture disrupts the growth plate at the end of the bone, it could affect the development of the bone. To allow the bones to safely regain their normal strength, the child should avoid playing on playground structures, such as monkey bars, for 3 to 4 weeks after the cast is removed. This stiffness will go away on its own, usually without the need for physical therapy.įor a short period of time, the forearm bones may be weaker due to immobilization in the cast. When the cast is removed, the wrist and elbow joints may be stiff for 2 to 3 weeks. ![]() A more serious injury, such as a Monteggia fracture, may need to be immobilized for 6 to 10 weeks. A stable fracture, such as a buckle fracture, may require 3 to 4 weeks in a cast. The length of time the cast is worn will vary depending on the severity of the fracture. Because the growth plate helps determine the future length and shape of the mature bone, this type of fracture requires prompt attention. In most cases, this type of fracture occurs in the growth plate of the radius near the wrist. Also called a "physeal" fracture, this fracture occurs at or across the growth plate. ![]() This is a very severe injury and requires urgent care. There is usually a fracture in the ulna and the top (head) of the radius is dislocated. This injury affects both bones of the forearm. There is usually a displaced fracture in the radius and a dislocation of the ulna at the wrist, where the radius and ulna come together. The fracture extends through a portion of the bone, causing it to bend on the other side. ![]() The fracture is across the upper or lower portion of the shaft of the bone and does not affect the growth plate. This is a stable fracture, meaning that the broken pieces of bone are still in position and have not separated apart (displaced). The topmost layer of bone on one side of the bone is compressed, causing the other side to bend away from the growth plate. There are several types of forearm fractures in children:
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