Acetabular shell

An acetabular shell is a metal implant used in hip replacement surgery to replace the damaged socket of the hip joint. It serves as the outer component of a two-piece acetabulum prosthesis, providing structural support and stability for the inner liner while anchoring to the pelvis.

These devices are typically fixed to the pelvis using bone cement or specialized fixation hardware. Regulation varies by jurisdiction, but they are generally classified as high-risk implants due to their permanent placement and critical role in joint function.