Properly classifying acetabular fractures is crucial for a good preoperative planning and for an efficient surgical reduction. However, in order to accomplish its objectives, any classification system must be simple and reproducible. The objective of this article is to assess inter-observer reproducibility of Tile’s classification concerning acetabular fractures. Thirty X-ray images of 10 acetabular fractures at Judet planes were used and assessed by 10 observers, being five hip surgery experts and five 3rd-grade orthopaedic residents. The global consistency achieved was 72.44% to Kappa (K) = 0.52 (0.48 among resident doctors and 0.57 among experts). It was concluded that the Tile’s classification of acetabular fractures reveals a moderate inter-observer consistency, with no statistically significant difference between resident doctors and experts.
Reproducibility of results; classification; fracture; acetabulum
