Trilogy® Acetabular Hip System

Building on Success

The Trilogy Acetabular Hip System builds on the success of the Harris-Galante™ Porous and HGP II Cups by combining proven features with new technology designed to inhibit the formation and migration of polyethylene debris. In doing so, Zimmer has provided multiple defense mechanisms against the poly debris that can be associated with osteolysis.

Clinical History

Ten-year survivorship analysis of Galante’s series of 204 Harris-Galante Cups revealed that the acetabular component had a 99 percent chance of survival with revision or aseptic loosening as the end point. Osteolysis was noted in only 4 percent of cases.1

In a series of 264 Harris-Galante Cups implanted by eight surgeons, Bohm and Boshche reported that no acetabular components had been revised for aseptic loosening and there was no evidence of pelvic osteolysis at 11 years follow-up. The cumulative survival rate with removal as the end point was 98 percent.2

Options for Patient Fit and Surgeon Preference

Available in a complete size range and a variety of shell configurations and liner options, the Trilogy System offers surgeons ample scope to meet both the primary and revision needs of their patients while accommodating their surgical preference.

Removable Longevity Highly Crosslinked liners are available in standard, 10 degree, and 20 degree elevations, 7mm offset, oblique, and eccentric options. Additionally, large head liners are available up to size 40mm ID. This offers a range of options to assist the surgeon in optimizing femoral head coverage and restoring proper hip kinematics. The liners are designed to minimize wear by achieving maximum congruency and optimized poly thickness without compromising range of motion and metal shell thickness.

Product Brochure
  1. Clohisy JC, Harris WH. Primary hybrid total hip replacement at ten-year follow-up. Presented at the Harvard Hip Course, September 1997.
  2. Callaghan JJ, Gooma GS, Olejiniczak JP, et al. Primary total hip arthroplasty: an interim follow-up. Clin Orth Rel Res.
The Trilogy Acetabular System constrained liner is indicated for either cemented or noncemented use as a component of a total hip prosthesis in primary or revision patients at high risk of hip dislocation due to a history of prior dislocation, bone loss, soft tissue laxity, neuromuscular disease, or intraoperative instability and for whom all other options to constrained acetabular components have been considered.
Bone necrosis induced by radiation can occur as the result of therapeutic exposure to >35 Gy for the treatment of cancer. Osteoradionecrosis of the acetabulum is a relative contraindication to total hip joint replacement because of the likelihood of failure of the acetabular implant due to poor bone stock. In cases where hip arthroplasty is necessary when pelvic radiotherapy has previously occurred, use of protrusion rings, bone graft harvested from outside the zones of irradiation, and bone cement may be required to minimize the risk of subsequent failure of the acetabular implant. The Trilogy constrained liner should not be used with skirted femoral heads. The skirt will reduce the range of motion, increasing the possibility of impingement and subsequent dislocation of the device.
These devices are provided sterile by prior exposure to gamma irradiation and remain sterile as long as the package integrity has not been violated. Inspect each package prior to use and do not use the component if any seal or cavity is damaged or breached or if the expiration date has been exceeded. Once opened, the component must be used, discarded or resterilized.