Topic Registries

Executive Summaries


Dutch registry shows ceramic bearings on top

Study published by Peters et al. in Acta Orthopaedica 2017; 88 (x): x–x DOI: 10.1080/17453674.2017.1405669: “The effect of bearing type on the outcome of total hip arthroplasty Analysis of 209,912 primary total hip arthroplasties registered in the Dutch Arthroplasty Register”


Superior results with ceramic in New Zealand

Study published by Sharplin et al. in Hip Int. 2017 Dec 1:0. doi: 10.5301/hipint.5000585.: “Which is the best bearing surface for primary total hip replacement? A New Zealand Registry study”


USA: Ceramic heads No. 1 choice

Study published by Bedard et al. in J Arthroplasty. 2017 Dec;32(12):3777-3781. doi: 10.1016/j.arth.2017.07.044. Epub 2017 Aug 3.: “Are trends in THA bearing surface continuing to change? 2007-2015 usage in a large database cohort”



86% ceramic in Germany


Congress Report: “EPRD First Annual Report 2016 on Hip and Knee Arthroplasty Data”

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AOA NJRR: Advantage for ceramic and large heads


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Reliability of Mixed Ceramic / BIOLOX®delta: Fracture rates


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Evaluation of the performance of BIOLOX®delta vs BIOLOX®forte components in total primary hip arthroplasty: Data from the RIPO Register


Aldo Toni, Barbara Bordini, Cristina Ancarani, Susanna Stea

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NJR 2017: Measurably better survivorship with CoP than MoP


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Registries look at cancer, PJI and fracture


Cancer, PJI and periprosthetic fracture were the main subjects discussed at the Sixth International Congress of Arthroplasty Registries (ISAR) held May 20-22, 2017, in San Francisco, USA. According to the Australian registry, the overall incidence of cancer for THA patients was 6% higher than the population average. The authors did not find a significant difference in all-site cancer rates between metal-on-metal (MoM) and other bearings. Nevertheless, the incidence of Hodgkin’s Lymphoma was 117% higher with MoM.

PJI remains one of the most frequent reasons for failure in THA worldwide, according to the authors of an international registry collaboration study. The British National Joint Registry (NJR) shows an increased risk of revision for PJI in males, smokers and patients with high BMI, diabetes, rheumatoid arthritis, chronic pulmonary disease or liver disease. The authors also identified an influence of dementia, fractured neck of femur, previous history of infection and lateral surgical approach. There was no evidence of association with the presence of a consultant (none, assisting, operating), grade of operating surgeon (consultant, other) and place of surgery (England, Wales). Ceramic bearings showed a protective effect against PJI.

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