The insert screw on your knee replacement came loose and it needs to be fixed What does the new insert look like as you understand it does not use a screw?

The new insert for a knee replacement typically features a design that relies on a press-fit or locking mechanism rather than screws. This insert is often made from durable materials like cobalt-chromium or polyethylene, designed to fit snugly into the bone and provide stable support. The absence of screws reduces the risk of loosening and complications, allowing for a more secure and stable joint function. Additionally, the insert may have a contoured shape to better accommodate the natural movement of the knee.