Effects of Avascular Necrosis Avascular necrosis is most common in the upper leg and the femur bone which is the bone that connect to the hip joint. Your child may complain of pain when walking or weight bearing through the joint, as the condition progresses it is likely to cause stiffness or affect your child's sleep. In order to diagnose avascular necrosis an MRI is able to detect the deterioration during the early stages, bone scans and CT scans also useful to diagnose the condition in the later stages of the condition and can give a clear representation about the extent of bone damage. To book an assessment or for more information please email office@manchesterneurophysio.co.uk call 0161 883 0066 . Next → Error_log