Pipkin fracture is defined as -
Pipikin's classification of femoral head fracture
Type I: Femoral head fracture inferior (caudal) to fovea
Type II: Femoral head fracture superior (cephalad) to fovea
Type III: Femoral head fracture with associated femoral neck fracture
Type IV : Type I, II or III with associated acetabular fracture
Head of radius fracture
Head of femur fracture
Fracture dislocation of ankle
Fracture neck of femur