What is Avascular Necrosis of the hip?
“Avascular” means no blood supply, “Necrosis” means death, so essentially this condition means that the femoral head of the hip joint “died” and collapsed due to the lack of blood supply. It is one of the most common causes of hip arthritis in this part of the world.
There are multiple causes of AVN of the hip, the commonest being injuries to the hip joint (fracture of the hip region), excessive alcohol intake or excessive use of steroids (steroids are very effective treatment of multiple conditions such as Asthma, rheumatoid arthritis, but the prolonged use of steroids will significantly increase of the risk of AVN of the hip). There are also multiple other causes associated with AVN of the hip, such as sickle cell anaemia, deep sea diving, although their exact mechanism is not fully understood yet.