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An intramedullary rod, also known as an intramedullary nail (IM nail) or inter-locking nail or Küntscher nail (without proximal or distal fixation), is a metal rod forced into the medullary cavity of a bone. IM nails have long been used to treat fractures of long bones of the body.
A subtrochanteric blade plate or an intramedullary rod can be used to stabilize the osteotomy site in a femoral derotation osteotomy until compete bone healing is achieved; an approach employing an intramedullary rod is much less invasive than one using a subtrochanteric blade plate. [citation needed]}
Intramedullary stabilization involves inserting a rod or nail into the tibial medullary canal. This offers structural support from within the affected bone, allowing for bone alignment and union. Surgeons may opt for flexible or rigid intramedullary nails depending on patient-specific factors such as age, pseudarthrosis severity and any ...
Cannulated bars are used as intramedullary rods for the fixation of long bone fractures. [1] The central hollow promotes marrow regrowth. In this application, a Kirschner wire may be fed through the hollow to provide fixation and traction at each end of the implant. Cannulated bars are also used as raw material, in the manufacturing of ...
Common injuries sustained in cats after a fall include: Broken bones, most often the jawbone as the cat's chin hits the ground; a broken jawbone and damaged or shattered teeth are the typical signs of a cat having sustained injuries in a fall. Injuries to the legs: joint injury; ruptured tendons; ligament injury; broken legs.
The use of intramedullary rods to treat fractures of the femur and tibia was pioneered by Gerhard Küntscher of Germany. This made a noticeable difference to the speed of recovery of injured German soldiers during World War II and led to more widespread adoption of intramedullary fixation of fractures in the rest of the world.
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For femoral shaft fractures, reduction and intramedullary nailing is currently recommended. [14] The bone is re-aligned, then a metal rod is placed into the femoral bone marrow, and secured with nails at either end. This method offers less exposure, a 98–99% union rate, lower infection rates (1–2%) and less muscular scarring. [14] [15] [17]