Femoral Component: The femoral component replaces the damaged femoral head, which is the ball-shaped part of the hip joint. It consists of a metal or ceramic ball attached to a stem. The stem is inserted into the hollow center of the femur (thigh bone) to provide stability and support.

Acetabular Component: The acetabular component replaces the damaged hip socket (acetabulum) in the pelvis. It is a cup-shaped component made of metal, ceramic, or high-grade plastic. The acetabular component may have a porous coating or may include a liner made of polyethylene or another material to allow for smooth movement and reduce friction within the joint.

Liner: The liner is a smooth insert placed within the acetabular component to facilitate the smooth articulation of the femoral head. It is typically made of polyethylene, a durable and low-friction material. Some advanced hip replacement products may use alternative materials, such as ceramic or highly crosslinked polyethylene, to improve wear resistance and longevity.

Fixation Methods: Hip replacement products employ various fixation methods to secure the components within the bone. Cemented fixation involves using bone cement to attach the components to the bone. Cementless fixation relies on the natural bone’s ability to grow into and bond with the porous surface of the implant. Hybrid fixation combines both cemented and cementless techniques, using cement for the femoral component and relying on bone growth for the acetabular component.

Modular Options: Some hip replacement products offer modular options, allowing for customization and optimal fit. Modular designs allow the surgeon to choose different combinations of femoral heads, stems, and liners based on the patient’s unique anatomy and specific requirements.