Zimmer Segmental System, Polyethylene Insert XT - Uncoated knee femur prosthesis

Intended purpose

The Polyethylene Insert XT is part of the Zimmer Segmental System and is indicated for moderate to severe knee instability, significant bone loss and/or ligament deficiencies caused by neoplasms, trauma, rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis, collagen disorders, and/or avascular necrosis of the proximal and/or distal femur and/or proximal tibia; Valgus, varus or flexion deformities; The salvage of previously failed surgical attempts.

Functional description

The ZSS Poly Insert is designed to have greater resistance to increased forces with a corresponding projection to the cavity in the XT femoral component. Features a raised boss anteriorly that nests into a corresponding recess in the XT Distal Femur at full knee extension, providing a hyperextension stop with greater polyethylene thickness and larger surface area of contact than existed previously. Made with UHMWPE.