Interobserver reliability and intraobserver reproducibility of the Fernandez classification for distal radius fractures.

We have evaluated the clinical application of the Fernandez classification without questioning the scientific validity, by assessing the interobserver reliability and intraobserver reproducibility. A set of 25 radiographs of distal radius fractures were given to six assessors along with details of Fernandez classification. The assessors classified the fractures on two different occasions 3 months apart. The outcome was assessed using kappa statistics and demonstrated poor interobserver reliability and intraobserver reproducibility. Caution should be exercised when using this classification for clinical practice and research.