The Zimmer Trabecular Metal Augmentation Patella is intended to help compensate for significant bone loss in the patella during revision total knee arthroplasty. The All-Polyethylene Patella is cemented into the Trabecular Metal Material base. The Zimmer Trabecular Metal Augmentation Patella is intended for use with bone cement. Additional fixation is provided by suture attachment of the Trabecular Metal Material base to the patellar tendon and remaining bone stock. Medium and large sizes, both in 19 mm and 22 mm total thicknesses, help compensate for bone deficiencies and restore anatomic relationships.