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Updated: Jul 30, 2025
Proximal Cadaveric Femur Preparation for Fracture Strength Testing and Quantitative CT-based Finite Element Analysis
Published on: March 11, 2017
Completeness and validity of the Danish fracture database
Anders Bo Roennegaard1, Per Hviid Gundtoft2, Peter Toft Tengberg3
1Department of Orthopedic Surgery and Traumatology, Kolding Hospital - part of Hospital Lillebaelt, Denmark.
Objective:
To calculate completeness of the Danish Fracture Database (DFDB) overall and stratified by hospital volume and to calculate the validity of independently assessed variables in the DFDB.
Study Design And Setting:
In this completeness and validation study, cases registered in the DFDB with fracture-related surgery in 2016 were retrospectively reviewed. All cases had undergone fracture-related surgery at a Danish hospital reporting to the DFDB in 2016. The Danish health care system is fully tax-funded providing equal and free access to all residents. Completeness was calculated as sensitivity and validity was calculated as positive predictive values (PPVs).
Results:
OVERALL COMPLETENESS WAS 55.4% (95% CI: : 54.7-56.0). For small-volume hospitals it was 60% (95% CI: 58.9-61.1), and for large-volume hospitals, it was 52.9% (95% CI: 52.0-53.7). The PPV for variables of interest ranged from 81% to 100%. The PPV of key variables was 98% (95% CI: 95-98) for operated side, 98% (95% CI: 96-98) for date of surgery, and 98% (95% CI: 98-100) for surgery type.
Conclusion:
We found low completeness of data reported to the DFDB in 2016; however, in the same period, the validity of data in the DFDB was high.
