Avascular necrosis - hip joint
Patient presented with bilateral hip pain. Patient had history of steroids use.
Loading Stack -
0 images remaining
Frontal pelvic radiograph shows marked ﬂatening and sclerosis of both femoral heads representing advanced (Ficat stage III) avascular necrosis.
Avascualr necrosis (AVN), also called osteonecrosis or aseptic necrosis, is a condition that occurs when there is loss of blood to the bone. The femoral head is the most common location for AVN to occur.
Etiology can be remembered by the following mnemonic:
- Gaucher disease
- idiopathic (Legg-Calvé-Perthes, Köhler, Chandler)
- vasculitis (SLE, polyarteritis nodosa, rheumatoid arthritis)
- environmental (frostbite, thermal injury)
- neoplasia (associated coagulopathy)
- fat (prolonged corticosteroid use increases marrow)
- renal failure and dialysis
- Caisson disease
- trauma (femoral neck fracture, hip dislocation)
- sickle cell disease