Two-Year Results of Ceramic-on-Ceramic Hip Resurfacing in an
International Multicenter Cohort

David Lin, MBBS a, Joshua Xu, MD a,*, Patrick Weinrauch, MBBS b,
David A. Young, MBBS c, Koen De Smet, MD d, Andrew Manktelow, MBBS e,
Paul E. Beaule, MD f, William L. Walter, MBBS a,g

Read Full Study Here: https://surfacehippy.info/recerf-info/2024-Two-Year-Results-Ceramic-on-Ceramic-Hip-Resurfacing.pdf

ABSTRACT

Background: Hip resurfacing arthroplasty (HRA) is a bone-conserving alternative to total hip arthro
plasty. We present the 2-year clinical and radiographic follow-up of a novel ceramic-on-ceramic HRA in
an international multicenter cohort.

Methods: Patients undergoing HRA between September 2018 and January 2021 were prospectively
included. Patient-reported outcome measures (PROMs) in the form of the Forgotten Joint Score, Hip
Disability and Osteoarthritis Outcome Score Jr., Western Ontario and McMaster Universities Arthritis
Index, Oxford Hip Score, and University of California, Los Angeles, Activity Score were collected preop
eratively, and at 1 and 2 years postoperation. Serial radiographs were assessed for migration, component
alignment, evidence of osteolysis or loosening, and heterotopic ossification formation.

Results: The study identified 200 patients who reached a minimum 2-year follow-up (mean 3.5 years). Of
these, 185 completed PROMs follow-up at 2 years. There was a significant improvement in Hip Disability
and Osteoarthritis Outcome Score (P < .001) and Oxford Hip Score (P < .001) between the preoperative,
1-year, and 2-year outcomes. Patients had improved activity scores on the University of California, Los
Angeles, Active Score (P < .001), with 45% reporting a return to high-impact activity at 2 years. At 1 and 2
years, the Forgotten Joint Score was not significantly different (P ¼ .38). There was no migration,
osteolysis, or loosening of any of the implants. No fractures were reported over the 2-year follow-up,
with only 1 patient reporting a sciatic nerve palsy. There were 2 revisions, 1 for unexplained pain at 3
months due to acetabular component malposition and 1 at 33.5 months for acetabular implant failure.

Conclusions: The ceramic-on-ceramic resurfacing at 2 years postoperation demonstrates promising re
sults with satisfactory outcomes in all recorded PROMs. Further long-term data are needed to support
the widespread adoption of this prosthesis as an alternative to other HRA bearings.

© 2024 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND
license (http://creativecommons.org/licenses/by-nc-nd/4.0/)