Rotating hinged total knee prosthesis

A rotating hinged total knee prosthesis is a sterile implantable device designed to replace the entire knee joint when significant bone or ligament loss occurs, such as after tumor resection or in revision surgeries where prior implants have failed. It restores joint function by articulating femoral, tibial, and patellar components made from materials like metal, ceramic, or polyethylene, and includes a mechanism that allows controlled rotation while maintaining stability through a posteriorly positioned transverse axis connection.

Devices in this category are implantable medical devices intended for surgical use and are subject to regulatory oversight based on their invasive nature and intended function. They are typically supplied as sterile implants for use by qualified surgeons in hospital settings, with regulatory classification determined by individual jurisdictions according to risk-based frameworks applicable to active implantable joint replacements.