Score: Pauwels classification
Use: Femoral head fracture orientation
Pauwel's angle is formed by extending the fracture line upwards to meet an imaginary horizontal line drawn through the transtrabecular (iiliac crest) plane on AP film.
Type I
Less than 30°
Type II
Between 30° and 70°
Type III
More than 70°Reference
Classification and Diagnosis in Orthopaedic Trauma. Editors: Rahij Anwar, Kenneth W. R. Tuson, Shah Alam Khan. Cambridge University Press, 2008