Trilogy Acetabular System Longevity Cross-linked Polyethylene Liner, 7mm Offset - Non-constrained polyethylene acetabular liner

Intended purpose

Longevity Cross-linked Polyethylene liners are part of the Trilogy Acetabular System that is indicated for either cemented or uncemented use in skeletally mature individuals undergoing primary or revision surgery for rehabilitating hips damaged as a result of noninflammatory degenerative joint disease (NIDJD) or its composite diagnoses of osteoarthritis, avascular necrosis, protrusio acetabuli, traumatic arthritis, slipped capital epiphysis, fused hip, fracture of the pelvis, and diastrophic variant.

Functional description

This UHMWPE liner comes in a variety of inner diameters, and features a laterialized center of rotation. In 45° of abduction, the liner will move the center of rotation 5mm laterally (increasing offset) and 5mm inferiorly (increasing leg length) in order to provide an additional 7mm in neck length. The liner is locked into the shell component once the metal shell has been secured in the acetabulum. A Tivanium Alloy locking ring, provided preassembled to the shell, secures the liner to the shell.