Related Experiment Video
Updated: Jul 4, 2026

09:51
The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
Published on: September 7, 2022
Acute liner disassociation of a Pinnacle acetabular component
1Michigan Orthopedic Center, Lansing, Michigan 48910, USA.
The Journal of Arthroplasty
|June 17, 2008
Abstract:
A primary total hip arthroplasty using a cementless Pinnacle cup and neutral Marathon polyethylene liner mated via a 32-mm cobalt chrome head to a Summit pore coated stem (Depuy, Warsaw, IN). At 23 months postoperative an acute disassociation occurred. This was resolved with a liner exchange to a 36-mm metal liner with a 36-mm metal head. The retrieved polyethylene liner was noted to have 3 of the 6 peripheral locking tabs sheared off.