Score: Riseborough-Radin classification

Use: Intercondylar humerus fractures

Type I

Undisplaced fracture between the capitellum and trochlea

Type II

Separation of the capitellum and trochlea without appreciable rotation of the fragments in the frontal plane

Type III

Separation of the fragments with rotational deformity

Type IV

Severe comminution of the articular surface with wide separation of the humeral condyles

Reference

Classification and Diagnosis in Orthopaedic Trauma. Editors: Rahij Anwar, Kenneth W. R. Tuson, Shah Alam Khan. Cambridge University Press, 2008