Boonyarak Visutipol, Pornchai Chobtangsin, Bunyat Ketmalasiri, Narongchai Pattarabanjird and Namchai Varodompun
Institute of Orthopaedics, Lerdsin General Hospital, Bangkok, Thailand

Letournal and Judet classification of acetabular fracture is widely used. The classification is based on the identification of fracture lines on plain radiographs. Three-dimensional CT scan was claimed to give a better view of the fracture line.
Our study showed that intraobserver reproducibility and interobserver reliability were almost the same when classification was done by using plain radiographs and 3D-CT scan. And 3D-CT scan did not increase either the interobserver reliability or the intraobserver reproducibility in classifying the fracture.

Key words: letournal and Judet classification; acetabular fracture; three dimensional CT scan; intraobserver reproducibility; interobserver reliability