Avascular Necrosis Market Pipeline Review and Commercial Forecast Avascular necrosis (AVN), or osteonecrosis, is a progressive and potentially debilitating condition triggered by the loss of blood flow to the bone. This lack of circulation leads to the death of bone tissue, which can result in joint collapse if left untreated. Most commonly impacting the femoral head of the hip, AVN can also affect other joints such as the shoulder, knee, and ankle. With the...