What diseases can cause osteonecrosis?

Some medical conditions may increase the risk of osteonecrosis, including:

  • Certain blood disorders, such as sickle cell disease.
  • Certain types of cancer, such as leukemia.
  • Decompression sickness, also known as divers’ disease, the bends, or caisson disease.
  • Gaucher disease.
  • Gout.
  • HIV infection.
  • Pancreatitis.

What causes spontaneous osteonecrosis of the knee?

Spontaneous osteonecrosis of the knee is due to an overload of the medial compartment, primarily the medial femoral condyle, leading to a swelling of the bone on MRI and an overload of the articular cartilage surface. This overload can lead to insufficiency fractures and the rapid wear of the articular cartilage.

What body systems are affected by osteonecrosis?

Osteonecrosis is bone death caused by poor blood supply. It is most common in the hip and shoulder but can affect other large joints such as the knee, elbow, wrist, and ankle.

How serious is osteonecrosis of the knee?

Because bone cells need a steady supply of blood to stay healthy, osteonecrosis can ultimately lead to destruction of the knee joint and severe arthritis. When osteonecrosis is diagnosed early, treatment may involve taking medications to relieve pain or limiting use of the affected knee.

What is the most common cause of osteonecrosis other than fracture?

Osteonecrosis most likely develops because of the combination of factors, possibly including genetic, metabolic, self-imposed (alcohol, smoking), and other diseases that you may have and their treatment. Injury: When a joint is injured, as in a fracture or dislocation, the blood vessels may be damaged.

What are the symptoms of osteonecrosis of the knee?

Symptoms

  • Sudden pain on the inside of the knee, perhaps triggered by a specific activity or minor injury.
  • Increased pain at night and with activity.
  • Swelling over the front and inside of the knee.
  • Heightened sensitivity to touch in the area.
  • Limited motion due to pain.

Is osteonecrosis of the knee painful?

Osteonecrosis is often associated with increased pain with activity and at night. It may also cause swelling of the knee and sensitivity to touch and pressure, and can result in limited motion due to pain and swelling.

How common is necrosis of the knee?

Spontaneous osteonecrosis of the knee (SONK). It is most common in adult women older than 60 years. It usually affects only one knee. Researchers believe that it is caused by small fractures (breaks) in the weakened bones of the knee.