Ceramic Heads With 12/14 Titanium Sleeves Used on Manufacturer-Non-Compatible Retained Femoral Components Do Not Lead to Implant Failure in Revision Hip Arthroplasty.

BACKGROUND

Ceramic femoral heads with titanium sleeves are commonly used in revision total hip arthroplasty (rTHA). Companies advise against combination with a retained femoral component from another manufacturer. However, no data are available. The aim of this study was to evaluate and compare the implant failure and revision rates of ceramic heads with a 12/14 titanium sleeve used on manufacturer-compatible versus non-compatible retained femoral components.

METHODS

A retrospective single-center cohort analysis was performed using a prospectively maintained institutional arthroplasty registry. We identified 439 patients who received a titanium 12/14 ceramic head during rTHA between January 1

RESULTS

After a median follow-up of 6.6 years (IQR (Interquartile-range): 4.5 to 9.3), there was no significant difference (P = 0.770) in the re-revision rate between the manufacturer-compatible group (17.0%) and the non-compatible group (18.1%). Revision-free survival after rTHA was 81.2% in the manufacturer-compatible group and 78.9% in the manufacturer-non-compatible group after 15 years (P = 0.653). Most re-revisions occurred in the first year after rTHA, with 29 of 229 (12.7%) in the manufacturer-compatible group and 24 of 210 (11.4%) in the manufacturer-non-compatible group (P = 0.705). We observed only one implant failure in the manufacturer-non-compatible group, but this was not related to a mismatch problem.

CONCLUSION

Although legal uncertainties remain, this study showed no increased risk of implant failure or revision rates when a ceramic femoral head with a 12/14 titanium sleeve was used on a non-compatible femoral stem from a manufacturer.

Informations de copyright

Copyright © 2024. Published by Elsevier Inc.