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Completed

NCT Number: NCT06064318

Prevalence and Incidence of Multiple Revisions Following Knee Arthroplasty in Denmark 1998-2021: A Nationwide Population-based Study

The purpose of this study is to investigate the incidence and prevalence rates of multiply revised knee arthroplasty patients in Denmark from 1998-2021.

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Key information

Conditions

Knee Replacement Knee Replacement Revision

Sex eligibility

All sexes

Study type

Observational

Primary location

Rigshospitalet

Copenhagen, 2100, Denmark

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Danish Resident
  • all ages
  • must have had primary knee arthroplasty procedure performed in Denmark between 1998-2021

Exclusion criteria

  • Missing key variables (patient ID, date of surgery, procedure-code, laterality of procedure)
  • Duplicates
  • Non-relevant procedures

Treatment and study plan

Revision

Procedure

Any type of knee revision, excluding knee arthrodesis and femur amputation

Primary outcomes

  1. Prevalence of major n-grade revisions

    Time frame: 23 years

    standardized prevalence of major n-grade revisions

  2. Incidence of major n-grade revisions

    Time frame: 23 years

    standardized incidence of major n-grade revisions

  3. Prevalence of all n-grade revisions

    Time frame: 23 years

    standardized prevalence of all n-grade revisions

  4. Incidence of all n-grade revisions

    Time frame: 23 years

    standardized incidence of all n-grade revisions

Secondary outcomes

  1. Incidence of major and all n-grade revisions stratified by sex and age

    Time frame: 23 years

    Calculation of incidence for major and for all n-grade revisions stratified by sex and by age (groups, sex: male/female, age: 18-49/50-69/70-99)

  2. Prevalence of major and all n-grade revisions stratified by sex and age

    Time frame: 23 years

    Calculation of prevalence for major and for all n-grade revisions stratified by sex and by age (groups, sex: male/female, age: 18-49/50-69/70-99)

  3. Prevalence of major and all n-grade revisions for patients with their total sum of revisions

    Time frame: 23 Years

    Calculation of standardized prevalence for patients receiving major or all type of n-grade revision, where the ordering of revisions are not knee specific but patient-specific

Sponsors and collaborators

Lead sponsor

Rigshospitalet, Denmark

Other

Collaborators

  • Bispebjerg Hospital
  • Odense University Hospital

Registry information

Acronym: EMKAR ONE

Important dates

Study start
2023
Primary completion
2023
Study completion
2024
First posted
Oct 3, 2023
Registry last updated
Jun 4, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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