Porous Metal Augments: An Attractive Alternative for Reconstructing Large Acetabular Defects

Acetabular reconstruction in the setting of severe bone loss continues to be a challenge during revision hip arthroplasty. A modular porous tantalum acetabular revision system, including various prefabricated augments, provides a novel approach for these challenging cases. This system can be used to create structural support for an uncemented revision tantalum shell. This paper describes a stepwise technique of acetabular reconstruction using porous tantalum augments that enables the surgeon to achieve initial stable fixation, with restoration of the center of rotation, and maximization of host bone contact.