What does this research mean for the field?

The incidence and implant survival of multiply revised knee arthroplasties are similar in Norway and Denmark. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.SUPPORTS_CONSENSUS.

February 23, 2026Acta Orthopaedica1 citationsOpen Access

Similar incidence and implant survival of multiply revised knee arthroplasties in Norway and Denmark: a register study of the Danish and Norwegian Knee Arthroplasty registries from 1998–2021

JHJulius Tetens HaldRigshospitalet AFAnne Marie FenstadHaukeland University Hospital AEAnders El-GalalyRigshospitalet

Key Points

To compare the incidence and implant survival of multiply revised knee arthroplasties between Norway and Denmark.
Analyzed data from the Danish and Norwegian Knee Arthroplasty registries
Included records from 1998 to 2021
Conducted statistical comparisons of incidence and survival rates
Incidence of multiply revised knee arthroplasties was similar in both countries
Implant survival probabilities were comparable
Findings establish a benchmark for other countries

Abstract

The incidence of multiply revised knee arthroplasties was not significantly different between Norway and Denmark. The risk and implant survival probability of multiply revised knee arthroplasties was similar in the 2 countries. The results can be used as a benchmark for incidence and prevalence calculations in other countries.

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