Abstract
Introduction
Despite being from different manufacturers, Exeter stem and Ogee cup are commonly used together as cemented ‘cross breed’ combination in United Kingdom. The purpose of this study was to evaluate the long-term outcome of this combination.
Materials and methods
The ten years outcome of 131 primary hip replacements using an Exeter stem and an Ogee cup combination were studied retrospectively from clinical audit data and radiographs.
Results
The Harris Hip score (HHS) improved significantly from 46 pre-surgery to 88 post-surgery. This had a gradual decrease to 81 over ten years. This effect was associated with a decrease in function score but a sustained pain score. Radiologically, five cups were loose and two stems had failed. One stem had migrated and another had progressive endosteolysis. There were two recurrent dislocations, of which one was revised to a bipolar socket. The ten year survival of the combination implant was 99% (CI 97 to 100) with revision as an end point. The same with impending failure as end point was 93% (CI 87 to 99).
Conclusion
It might be preferable to have a multi-centric prospective study to demonstrate the performance of this commonly done combination implant at various settings. In the meantime it is concluded that the Exeter stem-Ogee cup combination arthroplasty has acceptable outcomes at ten years.
