Intramedullary nail is a surgical implantused to treat fractures of long bones, suchas the femur (thigh bone) and tibia(shinbone). lt's a long, metal rod that isinserted into the hollow center of the bone(medullary canal), providing internalsupport and stability to the brokenbone.often used in cases of compleXfractures or when external fixation is notsuitable.They can help promote healingand reduce the risk of complications, suchas nonunion or malunion.