What are the causes of avascular necrosis (AVN) of the femoral head?

Causes of avascular necrosis (AVN) of the femoral head

  • Congenital dislocation of the hip
  • Perthes' disease
  • Trauma (subcapital fractures of the femur)
  • Steroid therapy
  • SLE
  • Sickle cell anaemia
  • Diabetes mellitus
  • Alcohol abuse
  • Gaucher's disease
  • HIV inflection
  • Caisson's disease 
avascular necrosis (AVN) of the femoral head


  • Rapid review of clinical medicine for MRCP part 2, 2nd Edition, by Sanjay Sharma and Rashmi Kaushal; Q-357
  • Kumar and Clark's clinical medicine, 9th Edition; page 659
  • Davidson's Principles and Practice of Medicine; 23rd Edition; page 1055

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  1. Thank you for giving such a informative blog.The medical management of avascular necrosis (AVN) depends primarily on the location and severity of the disease, as well as the age and general health of the patient. The results of treatment are directly related to the stage of the disease