BIG BALLS – THE CERAMIC EXPERIENCE

Abstract

Aim: To discuss the rationale, selection criteria, indications, and results of using large diameter ceramic heads in primary and revision hip arthroplasty.

Patients and Methods: We routinely use Biolox family of ceramic heads and acetabular liners in patients undergoing total hip replacements. We present our experience in using ceramic articular bearings over the last 20 years and the switch to larger diameter ceramic heads. We also present our rationale for using a large diameter ceramic head instead of a large metal head.

Results: We reviewed a total of 1189 arthroplasties over this time period and we report the outcome of large bearing couples with case examples in primary and revision scenarios. Furthermore we compared a subset of patients (110) with large diameter ceramic heads – Biolox Delta 36mm to patients who had metal on metal (large head 42 mm and above) bearing couples. The performance of the ceramic bearing couples will be discussed along with the functional outcome of these patients. We found no difference in the functional, clinical sports activities (UCLA and Tegner scores) between patients who had large metal bearing couples and large ceramic couples. Complication rate was less with the ceramic bearing arthroplasties, as was patient satisfaction

Conclusion: Ceramic bearing couples have stood the test of time and have demonstrated an excellent long term wear properties. The recent introduction of the large diameter couples proves to be an excellent alternative if not the first choice in young, complex primary and revision case scenarios