Third and fourth generation ceramic-on-ceramic total hip arthroplasty at a minimum of ten years.

Autor: McCarthy CJ; National Orthopaedic Hospital Cappagh, Dublin, Ireland., Mahon J; National Orthopaedic Hospital Cappagh, Dublin, Ireland., Sheridan GA; National Orthopaedic Hospital Cappagh, Dublin, Ireland., Welch-Phillips A; National Orthopaedic Hospital Cappagh, Dublin, Ireland., O'Byrne JM; National Orthopaedic Hospital Cappagh, Dublin, Ireland.; Royal College of Surgeon Ireland, Dublin, Ireland., Kenny PJ; National Orthopaedic Hospital Cappagh, Dublin, Ireland.; Royal College of Surgeon Ireland, Dublin, Ireland.
Jazyk: angličtina
Zdroj: Journal of clinical orthopaedics and trauma [J Clin Orthop Trauma] 2022 Jul 06; Vol. 31, pp. 101942. Date of Electronic Publication: 2022 Jul 06 (Print Publication: 2022).
DOI: 10.1016/j.jcot.2022.101942
Abstrakt: Background: Ceramic on Ceramic bearings in Total Hip Arthroplasty (THA) afford a low friction coefficient, low wear rates and extreme hardness. Significant complications include hip squeak, ceramic fracture and poor polyethylene performance in revision procedures due to imbedding of abrasive microscopic ceramic fragments. We report on the results of this bearing at a minimum of 10 years.
Methods: A single-centre retrospective review of 449 THAs was performed. Primary outcome measures included aseptic revision and all-cause revision rates at a minimum of 10 years post operatively. Evaluation of functionality was performed with WOMAC and SF-36 scores which were performed pre-operatively and at intervals of 6 months, one year, 2 years, 5 years and 10 years post operatively.
Results: There was a 6.2% (n = 28) all-cause and 5.3% (n = 24) aseptic revision rate for ceramic on ceramic total hip arthroplasty at minimum of 10 years with a mean time to revision 4.8 years (range 2 months-11.6 years). Notably, there were 2 revisions for ceramic head fracture, one for ceramic liner fracture, 3 for aseptic loosening and 3 revisions for squeaking. Pain of unknown origin was the most common reason for revision. There was an improvement in postoperative WOMAC scores from a mean of 59.8 (range 15-95) pre-operatively to a mean of 15.6 (range 0-78) at 10 years.
Conclusion: This study showed good functional outcomes but high revision rates for CoC THA at a minimum of 10 years. Our rates of ceramic fracture were consistent with other studies.
(© 2022 Delhi Orthopedic Association. All rights reserved.)
Databáze: MEDLINE
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