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Danish Ligament Reconstruction Register


Primary variables

Activity level

Antibiotic prophylaxis

Cartilage lesion



Current injury

Fixation method

Follow-up data

Graft choice

Loose ACL

Medial looseness

Meniscus lesion

Operation - data

Operation - side

Pivot shift

Posterolateral looseness

Previous operation on same knee


Thrombosis prophylaxis


Danish Ligament Reconstruction Register (DKRR) is a national clinical quality database containing preoperative, anamnestic and diagnostic data and perioperative data. The aim of DKRR is to improve the treatment of patients in anterior cruciate ligament reconstruction.

DKRR has been operating nationally since 2005 and the population comprises all primary operations, multiple /collateral ligament operations and revisions undertaken at one of the orthopaedic departments undertaking this type of operation in Denmark, including private clinics.

Data from reporting departments is entered via KMS (Clinical Measurement System) and cross-batched with the National Patient Register (LPR).

More details

Nationwide clinical quality database
Clinical quality

Collection Period

Collection Period
The population consists of all patients who have had cruciate and multiple ligament surgery and revision after cruciate ligament surgery
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