load-sharing device
An implant that bears part of the mechanical load alongside the bone during healing.
Full Definition
A load-sharing device is an orthopedic implant designed to work in conjunction with bone to distribute mechanical forces during the healing process. Unlike load-bearing devices that carry the entire load, load-sharing implants allow controlled loading of the healing bone while providing backup support. This concept is crucial in modern fracture fixation as it promotes bone healing through controlled stress while preventing catastrophic failure. Common examples include bridge plates and flexible nails that maintain alignment while permitting some controlled motion at the fracture site.
Usage
Usage note: Distinguish from load-bearing devices which carry all mechanical stress independently of bone.
In Context
- "The bridge plate functioned as a load-sharing device, allowing gradual transfer of stress to the healing bone." — Biomechanical analysis
- "Load-sharing devices promote bone healing by maintaining some mechanical stimulation at the fracture site." — Orthopedic principles textbook