5/31/2023 0 Comments Pinner wire and cable![]() Migration of K-wires can occur instead of backing out the wire can move deeper.This is especially likely if they pass between two mobile bones. Loss of fixation: Smooth K-wires may back out of the bone losing the fixation.Breakage: K-wires may bend or break, especially if the fracture does not heal.Usually this infection clears up after removal of the pin. In such cases, the area around the pin becomes red and swollen and may start to drain pus. Pin tract infection: Because K-wires often pass through the skin into bone they form a potential passage for bacteria from the skin to migrate into the bone and cause an infection.K-wires can be used to guide cannulated screws to a precise location.They can be used for temporary joint immobilization.In traction of the femur for example, the protruding ends of the wire are fixed to the legs of a horseshoe shaped frame which maintains tension in the wire while the crook of the horseshoe is attached via line and pulleys to weights which maintain the traction. The wire is then attached to some form of traction so that the pull is applied directly to bone. A wire is passed through the skin then transversely through the bone and out the other side of the limb.Fractures of the kneecap and the olecranon process of the elbow are commonly treated by this method. As the loop is tightened the bone fragments are compressed together. Tension band wiring is a technique in which the bone fragments are transfixed by K-wires which are then also used as an anchor for a loop of flexible wire.In some settings they can be used for intramedullary fixation of bones such as the ulna. ![]() They can be used for definitive fixation if the fracture fragments are small (e.g.The pins are usually removed four weeks post operation. After definitive fixation they are then removed. K-wires are used for temporary fixation during some operations.This pin was invented in 1956 by the English orthopedic surgeon Robert Arthur Denham (born 1922). They are used for skeletal traction, with the threads engaging the bone. "Denham Pins" are strong, stout wires with a threaded portion at the midpoint.Used in situations where backing out of the pin is undesirable, they are inherently weaker than smooth K-wires. Kirschner wires used for fixation of a Colles' fracture Variations
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