Fracture Group

Fracture type

Unituberosity fractures (lateral or medial)

· Type I: mixed fractures

· Type II: separation fractures

· Type III: settlement fractures

Bi-Tuberosity Fractures

· Simple V, Y, or inverted T fractures

· Complex bi-tubercular fractures

· Comminuted bi-tubercular fractures

Spinotubercular fractures (medial or lateral)

· Type I: no or minimal displacement

· Type II: subluxation above and outside the diaphyseal-epiphyseal fragment with minimal overhang of the tibia in relation to the femur

· Type III: dislocation above and outside the diaphyseal fragment with rupture of the contralateral capsuloligamentous plane

Posterior separation fractures

· Posteromedial separation fracture

· Separation fracture of one plateau with spinotuberosity fracture of the other plateau