The DAMASK trial protocol: a pragmatic randomised trial to evaluate whether GPs should have direct access to MRI for patients with suspected internal derangement of the knee
2006

The DAMASK Trial: MRI Access for Knee Issues

Sample size: 500 publication Evidence: moderate

Author Information

Author(s): Brealey Stephen D, Atwell Christine, Bryan Stirling, Coulton Simon, Cox Helen, Cross Ben, Fylan Fiona, Garratt Andrew, Gilbert Fiona J, Gillan Maureen GC, Hendry Maggie, Hood Kerenza, Houston Helen, King David, Morton Veronica, Orchard Jo, Robling Michael, Russell Ian T, Torgerson David, Wadsworth Valerie, Wilkinson Clare

Primary Institution: University of York

Hypothesis

Should GPs refer patients with suspected internal derangement of the knee for MRI or to an orthopaedic specialist?

Conclusion

The DAMASK trial aims to determine the best referral pathway for patients with knee issues to improve outcomes and reduce costs.

Supporting Evidence

  • MRI is an accurate diagnostic test for detecting meniscal and cruciate lesions.
  • 85% of meniscal lesions and 90% of healthy menisci found at arthroscopy are detected with MRI.
  • Negative MRI findings could allow GPs to reassure patients and avoid unnecessary referrals.

Takeaway

This study is trying to find out if it's better for doctors to send patients for an MRI or directly to a knee specialist when they think there's a problem with the knee.

Methodology

A multi-centre pragmatic randomised trial with two parallel groups comparing MRI access versus referral to an orthopaedic specialist.

Potential Biases

Potential biases in GP referral practices and patient selection may affect the outcomes.

Limitations

The trial may not account for all variations in waiting times and referral practices across different regions.

Participant Demographics

Participants aged 18 to 55 presenting with knee issues in general practice.

Digital Object Identifier (DOI)

10.1186/1472-6963-6-133

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