Patella prosthesis trial

Patella prosthesis trial devices are temporary, reusable components used during knee replacement surgery to test the fit, alignment, and ligament balance of the final patella prosthesis. Surgeons use them intraoperatively to ensure proper sizing and positioning before securing the permanent implant, helping to optimize knee function and reduce complications.

These devices are typically regulated as surgical instruments, often requiring sterilization before use. They are supplied as part of a modular system, with multiple sizes to accommodate different patient anatomies, and are designed for single-use per patient before reprocessing. Classification and supply details vary by jurisdiction and manufacturer specifications.