Bone cement is a medical material used primarily in orthopedic surgeries to anchor implants, such as artificial joints, to the bone. It is typically made from a type of polymer called polymethyl methacrylate (PMMA), which hardens quickly after being mixed with a liquid component. This quick-setting property allows surgeons to secure implants effectively during procedures like hip replacement or knee replacement. In addition to its use in joint replacements, bone cement can also be utilized in vertebroplasty and kyphoplasty to stabilize fractured vertebrae. The cement fills gaps and provides support, helping to restore mobility and reduce pain. Its biocompatibility makes it a valuable tool in modern orthopedic practices.