Avascular necrosis (AVN), also known as osteonecrosis, is a condition in which the blood supply to a bone is disrupted, causing the bone tissue to die. This can lead to joint pain, deformity, and disability. The severity of the disability associated with AVN depends on the severity of the condition, the area of the body affected, and the individual’s age, health, and occupation.
In some cases, the effects of AVN can be reversed, particularly if the condition is caught and treated in its early stages. In these cases, the symptoms may be controlled with non-surgical treatments such as rest, physical therapy, and anti-inflammatory medications. In more advanced cases, however, surgery may be necessary to restore blood flow to the affected area and to remove any dead or damaged bone tissue.
In most cases, however, avascular necrosis is a permanent disability. If the condition has progressed to the point that bone tissue has died, it cannot be restored. As a result, the affected joint may be permanently weakened and cause chronic pain, stiffness, and decreased mobility. In some cases, the disability may be severe enough to interfere with daily activities and the individual’s ability to work. In these cases, physical therapy, assistive devices, and other measures may be necessary to help the individual manage their disability.