<prompt> Avascular necrosis is NOT seen in:Fracture neck of femurFracture neck of scaphoidFracture neck of talusDislocation of lunate  <response>: Avascular necrosis is common in fracture of femoral neck including slipped capital femoral epiphysis, posterior dislocation of hip, fracture neck of talus, fracture waist of scaphoid and lunate dislocation. Regions notorious for AVN: Head of femur, body of talus, proximal pa of scaphoid and lunate. In fracture neck femur the more proximal the lesion, more are chances of avascular necrosis. So subcapital fracture neck of femur has maximum chances of AVN worst prognosis. Ref: Apleys Ohopedics 8e, page 570 ; Maheshwari 3e, page 40-41, 270 