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Danish Hip Arthroplasty Register


Primary variables





Bone length

Bone transplant



Date of death

Fixation method

Functional level


Harris Hip Score

Head size (femur)

ICD10 diagnosis code

Operation - data

Operation - side


Previous hip operation

Primary diagnosis

Prosthesis - status

Thrombosis prophylaxis


The Danish Hip Arthroplasty Register (DHR) is a national clinical quality database aimed at improving the treatment of patients in the insertion of primary total hip arthroplasty and revisions. The database also aims to identify risk factors for early and late revision with respect for example to age, diagnoses, operation methods, prosthetic components and comorbidity.

DHR was set up in 1995 at the request of the Danish Orthopaedic Society and since all patients who have had a primary total hip arthroplasty have been registered . Data from reporting departments is entered via KMS (Clinical Measurement System) and cross-batched with the National Patient Register (LPR) and the Danish Transfusion Database.

More details

Nationwide clinical quality database
Clinical quality

Collection Period

Collection Period
The population consists of all patients who have had a primary total hip arthroplasty or who have had a revision arthroplasty
Database Categories

Application requirements

The Regional Clinical Quality Databases

Data about clinical quality are collected with the purpose of monitoring and raising the quality of patient treatment in the Danish health-care system. These data can, as well as all other public registers, be made accessible for research projects based on systematic protocols and approved according to the relevant legislations.

Applying for access to data from a regional clinical database requires a list of demands to be obtained. A project description should be attached containing a description of the project explaining the rationale, purpose, methods, budget, publication plan etc.

Furthermore, The Danish Data Protection Agency must approve the project.

Application process

  • Apply via research access (Danish: forskeradgang), an online application system
  • Submit the protocol to The Danish Clinical Registries (RKKP)
  • RKKP registers the application
  • The application is forwarded to the relevant clinical database
  • Potential dialog about adjustment to the protocol
  • Approval and extradition of data (expected 6 months after application)



The Regional clinical quality databases subject to rules for treatment of personal data, that should secure high quality of patient treatment in Denmark. These legislations include The Act on Processing of Personal Data (Danish: Persondataloven) and The Danish Act of Health (Danish: Sundhedloven). These legislations ensure that data access is limited to relevant purposes.

Contact information

Data owner
The Capital Region of Denmark
Contact data owner
Kongens vænge 2
3400 Hillerød
Website - data owner
Data administrator
The Danish Clinical Registries (RKKP)
Contact data administrator
Anne Haagen Hjelm
T: 21 68 68 35
Website - data administrator
Website - data administrator