metal-on-polyethylene bearings

Metal-on-polyethylene bearings are a common component in joint replacement surgeries, such as hip or knee implants. They consist of a metal surface paired with a durable plastic (polyethylene) part, allowing smooth movement between the two. The metal provides strength and stability, while the plastic acts as a smooth滑 layer, reducing friction and wear during joint motion. This combination aims to mimic natural joint movement, provide longevity, and decrease the risk of complications. Properly designed, metal-on-polyethylene bearings can improve mobility and alleviate pain for patients with damaged joints.