• Osteonecrosis occurs when blood flow to a bone is blocked or reduced. This can be caused due to:
  • Joint or bone trauma e.g. dislocated Joint
  • Fatty deposits in blood vessels
  • Medical conditions such as sickle cell anemia can cause reduced blood flow to the bone
  • The risk factors include:
  • Injuries such as hip dislocation or fracture
  • Alcohol abuse
  • Use of high dose corticosteroids
  • Prolonged use of medications to increase bone density
  • Medical treatments such as radiation therapy for cancer, kidney transplantation etc.

PreventionPrevention

  • Limiting alcohol intake
  • Keeping cholesterol levels low
  • Monitoring steroid use

ComplicationsComplications

If untreated for prolonged period, the complications may include:

  • Weakening of the bone till it collapses
  • The bone loses its smooth shape which may lead to arthritis

Diet recommendationsHow is this diagnosed?How to manage symptoms?Source: Focus Medica . For informational purposes only. Consult a medical professional for advice. Was this helpful?

  • People also askWhat happens in osteonecrosis of the hip?What happens in osteonecrosis of the hip?In osteonecrosis, blood flow to part of a bone is disrupted. This results in death of bone tissue, and the bone can eventually break down and the joint will collapse. Osteonecrosis is also called: Avascular necrosis.

    Symptoms If you or someone you know is exhibiting symptoms of Osteonecrosis, seek medical attention immediately.

    Early stages have no symptoms. As the condition progresses the symptoms may include:

    • Pain in hips, buttocks, groin, knee or thigh
    • Collapse of space between joints or limping may occur

    CausesCauses

    • Osteonecrosis occurs when blood flow to a bone is blocked or reduced. This can be caused due to:
    • Joint or bone trauma e.g. dislocated Joint
    • Fatty deposits in blood vessels
    • Medical conditions such as sickle cell anemia can cause reduced blood flow to the bone
    • The risk factors include:
    • Injuries such as hip dislocation or fracture
    • Alcohol abuse
    • Use of high dose corticosteroids
    • Prolonged use of medications to increase bone density
    • Medical treatments such as radiation therapy for cancer, kidney transplantation etc.
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    PreventionPrevention

    • Limiting alcohol intake
    • Keeping cholesterol levels low
    • Monitoring steroid use

    ComplicationsComplications

    If untreated for prolonged period, the complications may include:

    • Weakening of the bone till it collapses
    • The bone loses its smooth shape which may lead to arthritis

    Diet recommendationsHow is this diagnosed?How to manage symptoms?Source: Focus Medica . For informational purposes only. Consult a medical professional for advice. Was this helpful?What happens in osteonecrosis of the hip? In osteonecrosis, blood flow to part of a bone is disrupted. This results in death of bone tissue, and the bone can eventually break down and the joint will collapse. Osteonecrosis is also called: Avascular necrosis.

    What is osteonecrosis and how is it treated? Osteonecrosis happens when blood flow to part of a bone is reduced. This can lead to death of bone tissue, causing the bone to break down and joints to collapse. There may be no symptoms of the disease at first, but over time, you will start to feel pain in the affected bone. Treatments may include medications, physical therapy, and surgery.

    What is necrosis in surgery? More in Surgery. Necrosis in the death of tissues of the body. Necrosis can be treated, with the dead tissue being removed, but the affected tissue can not be returned to good health.

    What is the difference between osteonecrosis and aseptic necrosis? Aseptic necrosis. Ischemic necrosis of bone. Osteonecrosis can happen to any bone, but most often it develops in the ends of long bones, such as the: Thigh bone (femur), especially the upper part—the ball in the hip socket. The lower end, which is part of the knee joint, is also often affected.

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    What happens in osteonecrosis of the hip?

    Procedures

    It helps to remove part of the inner layer of your bone.

    It may strengthen the area of bone affected.

    A wedge of bone is removed from a weight-bearing joint, the weight on damaged joint is shifted.

    This is done to replace of damaged parts of the joint with plastic or metal parts.

    By using stem cells to generate new born.

    MedicationMedication Nonsteroidal anti-inflammatory drugs (NSAIDs): It helps to relieve the pain and inflammation.

    Bisphosphonates: It slows the progression osteonecrosis.

    Cholesterol lowering drugs: It prevents the vessel blockages.

    Blood thinners: It prevents formation of blood clots.

    TherapyTherapy

    Restores muscle strength and function through exercise.

    It encourages the body to grow new bone and replace the damaged bone by osteonecrosis.

    Self-careSelf-care

    Always talk to your provider before starting anything.

    • Rest- reduces weight and stress on the affected bone; this slows the damage
    • Exercises-guided by physical therapist may help maintain or improve motion on joint

    NutritionNutrition

    There are no specific food known to help. Maintain a balanced diet for overall health, and to avoid fast food is recommended.

    Specialist To ConsultSpecialist To Consult

    Specializes in the surgery of bone and joint disorders.

    What are the causes?Best prevention methodsHow is this diagnosed?Common complicationsSource: Focus Medica . For informational purposes only. Consult a medical professional for advice. Was this helpful?What is hip osteonecrosis? More in Orthopedics. Hip osteonecrosis, also called avascular necrosis, is a problem with the blood supply to bone of the hip joint. This condition occurs when there is an interruption of the blood flow to the head of the femur (the ball, of the ball-and-socket hip joint).

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    What is osteonecrosis and how does it cause pain? Pain caused by osteonecrosis may be mild or severe. If it causes your bone and joint to collapse, you may have severe pain and not be able to use the joint. For instance, if you have osteonecrosis in the hip, you may not be able to walk. What causes it? What causes osteonecrosis? Osteonecrosis results from the loss of blood supply to the bone.

    What are the points to remember about osteonecrosis? Points To Remember About Osteonecrosis Osteonecrosis is a bone disease that may cause pain or limit physical activity. Anyone can get osteonecrosis, but it is most common in people in their 30s, 40s, and 50s. Osteonecrosis results from the loss of blood supply to the bone.

    How does an MRI show osteonecrosis? These scans are used to evaluate how much of the bone is affected by the disease. An MRI may also show early osteonecrosis that has yet to cause symptoms (for example — osteonecrosis that may be developing in the opposite hip joint). This MRI scan shows osteonecrosis in a patient’s right hip (white arrow).

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