intramedullary nail
Also written as: IM — Intramedullary
Metal rod inserted into the medullary canal of long bones for fracture fixation and load sharing.
Full Definition
An intramedullary nail (IM nail) is a metal rod inserted into the medullary canal of long bones to provide internal fixation for fractures. This device acts as an internal splint, sharing load with the bone and providing stability in multiple planes. IM nails are typically secured with interlocking screws proximally and distally to prevent rotation and translation. They are particularly effective for diaphyseal fractures of the femur, tibia, and humerus. The minimally invasive insertion technique preserves soft tissue attachments and promotes faster healing compared to plate fixation in appropriate cases.
Usage
Usage note: Often abbreviated as 'IM nail' in clinical documentation.
In Context
- "The femoral shaft fracture was treated with a reamed intramedullary nail." — Operative report
- "Post-operative radiographs showed good position of the IM nail with appropriate screw placement." — Radiology report