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