The Pinnacle® Hip System (DePuy Orthopaedics, Inc.) was the first cementless acetabular cup to feature a design allowing varying combinations of acetabular liners. Though other designs have since mimicked this approach, Pinnacle has been established as a class leader and an extremely reliable clinical device. Within my clinical practice over the past 10 years, I have implanted more than 3,000 of these acetabular cups, and I continue to use it for all total hip arthroplasty (THA) patients, both primary and revision.
The variable liner cup system allows surgeons to use Pinnacle on almost every patient that requires a THA. In older patients, for example, a polyethylene liner may be the most appropriate bearing choice. In high-demand patients, a hard-on-hard bearing (ceramic-on-ceramic, ceramic-on-metal, metal-on-metal [MoM]) may be the best choice. The variable liner cup also allows for simplified reoperations in the event a revision is required. In fact, there is no need to replace the entire cup when a liner can easily be switched out to accommodate other designs—lipped, lateralized or face-changing liners—in cases of instability. The Pinnacle Hip System uses Variable Interface Prosthesis taper technology to allow for multiple liner options. Additionally, Pinnacle enables me to refine a single surgical technique with which I am very familiar, and one that has provided consistently positive results for my patients. This has the potential to minimize any variability in outcomes that could be introduced by adopting different implant systems, which I would use less frequently, for different patients.
The variable liner cup system allows surgeons to use Pinnacle on almost every patient that requires a THA. In older patients, for example, a polyethylene liner may be the most appropriate bearing choice. In high-demand patients, a hard-on-hard bearing (ceramic-on-ceramic, ceramic-on-metal, metal-on-metal [MoM]) may be the best choice. The variable liner cup also allows for simplified reoperations in the event a revision is required. In fact, there is no need to replace the entire cup when a liner can easily be switched out to accommodate other designs—lipped, lateralized or face-changing liners—in cases of instability. The Pinnacle Hip System uses Variable Interface Prosthesis taper technology to allow for multiple liner options. Additionally, Pinnacle enables me to refine a single surgical technique with which I am very familiar, and one that has provided consistently positive results for my patients. This has the potential to minimize any variability in outcomes that could be introduced by adopting different implant systems, which I would use less frequently, for different patients.
