Outcomes of Ceramic-on-Ceramic Total Hip Arthroplasties After Ten Years at Cork University Hospital Ireland

Abstract

Objectives: We conducted a retrospective observational study to investigate the patients’ reported outcomes and survival of ceramic-on-ceramic total hip arthroplasty. Patients and Methods: 238 patients underwent ceramic on ceramic hip arthroplasties between January, 2010 and October 2012. Out of these, 205 patients (86.1%) had uncemented fixations and 33 patients (13.9%) had cemented fixations with THA using a CoC femoral head and liner. For each patient, WOMAC and SF-12 scores were measured at six weeks, six months, two years, and five years. Radiological follow up to 10 years. The patients who received revision surgery were identified in the database. Results: The mean preoperative WOMAC and SF-12 scores were 39.83±12.29 and 30.07±2.18, respectively. At 5 years, the mean WOMAC score had improved from 39.83 ± 12.29 to 90.40 ± 5.30 (p < 0.01), Wilcoxon signed-rank test; the mean SF-12 score had improved from 30.07 ± 2.18 to 34.40 ± 2.22 (p < 0.01, Wilcoxon signed-rank test). Four patients (1.68%) got revision within 10 years postoperatively. Conclusion: The CoC THA showed statistically significant clinical improvement in WOMAC score and functional score of SF-12 after 5 years follow-up with satisfactory survival after 10 years.