Avascular necrosis (AVN) is a condition that develops when bone cells are damaged as a result of reduced or interrupted blood flow to the bone tissue. Bone whose blood supply is impaired may weaken over time and can lead to problems with joint function. Although it is most often seen in the hip and knee, it can also occur in other bones.
Symptoms and causes
Symptoms that may be seen in AVN include pain in the affected joint, reduced range of motion, stiffness and, at later stages, difficulty with daily activities. Complaints may be mild at first and may become more pronounced as the condition progresses.
Known risk factors include:
- Long-term, high-dose corticosteroid use
- Trauma to the joint area
- Excessive alcohol consumption
- Certain blood disorders such as sickle cell anemia
- Radiation treatments and certain systemic diseases
Diagnosis and approach
Diagnosis is made through the physician's assessment and imaging methods. X-ray, magnetic resonance imaging (MRI), computed tomography (CT) and scintigraphy are methods that may be used in this process. Early assessment is important for monitoring the condition. The course to be followed is determined by the physician according to the stage of the disease and the individual.
Rehabilitation process
Rehabilitation is planned with the aim of preserving joint mobility and supporting muscle strength. In this context, exercise programs and, where necessary, continuous passive motion (CPM) applications may be considered in line with the physician's recommendation; walking aids may be used to reduce the load on the affected joint. Device and assistive aid fittings are carried out in line with a specialist physician's prescription or medical report. Regular check-ups and adherence to the recommended program may help in managing the process.
This content is for informational purposes only; you should consult your physician for diagnosis and treatment.
