Avascular Necrosis – Symptoms and Causes

Avascular Necrosis
Avascular Necrosis

Avascular Necrosis is a disease resulting from the temporary. Or permanent loss of blood supply to the bone. Without blood, the bone tissue dies and causes bone collapse. If the disease affects the bones near a joint. It often leads to the collapse of the joint surface.

Etiology

Avascular necrosis can be caused by an injury. (trauma-related avascular necrosis or joint dislocation). Or by certain risk factors (non-traumatic avascular necrosis). The latter causes can include:

  • Some medications (steroids)
  • Blood coagulation disorders
  • Excessive alcohol use

Increased pressure within the bone. Which is also associated with avascular necrosis, causes the blood vessels to narrow. Making it hard for them to deliver enough blood to the bone cells. Here you know about Shoulder Bursitis Causes, Symptoms, Diagnosis, and Treatment.

Symptoms

In the early stages of avascular neurosis. A person may not have any symptoms. As the disease progresses. However, most people experience joint pain – at first only when putting weight on the affected joint, and then even when resting. The pain usually develops gradually and may be mild or severe. If residual necrosis progresses and the joint surface of the bone and the surrounding collapses. Then the pain can develop dramatically or increase. Pain in the affected joint can be severe enough to limit the range of motion of a person.

Diagnosis

Avascular Necrosis
Avascular Necrosis

After taking a full physical exam, and asking about a patient’s medical history. A doctor may use one or more imaging techniques to diagnose vascular necrosis. With many other diseases, early diagnosis increases the chance of treatment success. Tests to measure the pressure inside a bone may be used when a doctor strongly suspects. A patient has vascular necrosis, even though X-rays, bone scans, and MRIs may be normal. These tests are very sensitive and can detect increased pressure within the bone. But they require surgery. Here you know about Ozone Therapy as Adjuvant for Cancer Treatment.

Treatment

This condition requires evaluation and management by a medical professional and may include:

  • Medicines to reduce fatty substances (lipids). Which increase with corticosteroid treatment. Or to reduce blood clotting if clotting disorders are present
  • Nonsteroidal anti-inflammatory drugs to reduce pain
  • Weight-bearing reduction to the affected joint by limiting activities or by using crutches. In some cases, this can slow the damage and allow the natural healing
  • Range of motion exercises to maintain or improve joint range of motion
  • Electrical stimulation to induce bone growth

Surgical Treatment Options

Avascular Necrosis
Avascular Necrosis

Core decompression: Avascular Necrosis

Removal of the inner layer of the bone. Which reduces pressure within the bone. Increases blood flow to the bone and allows more blood vessels to form

Osteotomy: Avascular Necrosis

Reshapes the bone to reduce stress on the affected area

Bone Graft: Avascular Necrosis

Transplant healthy bone from one part to the diseased area to support a joint after core decompression

Arthroplasty/total joint replacement

Total joint replacement with artificial parts in late-stage vascular necrosis and when the joint is destroyed.

The information, including opinions and recommendations. Contained in the Web site is for general educational purposes only. Such information is not intended to be a substitute for professional medical advice, diagnosis, or treatment. No one should act upon any information on this Web site without first seeking medical advice from a qualified medical physician with whom they have a confidential doctor/patient relationship.

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