Knee replacement for Avascular necrosis

 
The term means death of bone due to lack of blood supply. This condition may occur without any obvious cause
Death Of Bone
 
It results in irregular bone surface leading for fast wear and tear and arthritis giving rise to pain and difficulty in walking
Death Of Bone
 
MRI shows bone swelling seen as white patch in these pictures
Death Of Bone
 
Picture of affected bone showing irregularity of affected bone surface
Death Of Bone
 
This was treated by knee replacement
Death Of Bone