Best Doctor List Near You for Avascular Necrosis in Araraquara

Avascular necrosis (AVN), also known as avascular osteonecrosis or bone infarction, is a pathological condition characterized by the death of bone tissue due to the loss of blood supply. This compromised blood flow can lead to the deterioration of the bone structure, resulting in pain, reduced mobility, and potentially severe joint dysfunction. AVN often affects the hip joint, but it can occur in other areas, such as the knees, shoulders, and ankles. The disease typically progresses through several stages, beginning with intermittent or mild joint pain that may be mistaken for other orthopaedic conditions. As the condition advances, the pain often becomes more severe, and patients may experience limited range of motion and joint stiffness. Over time, if left untreated, the affected bone may collapse, leading to more pronounced disabilities and the need for surgical intervention such as joint replacement. The causes of avascular necrosis are varied and multifactorial. A significant number of cases are associated with trauma; fractures and dislocations can damage blood vessels that supply the bone, leading to ischemia. Apart from trauma, certain medical conditions can predispose individuals to AVN. For instance, diseases such as lupus, sickle cell anemia, and Gaucher's disease can compromise blood flow to the bone. Additionally, prolonged use or high doses of corticosteroid medications, commonly prescribed for inflammatory conditions, is one of the most recognized risk factors for developing AVN. Excessive alcohol consumption is another concern, as it can lead to fatty deposits in blood vessels that impede blood flow, thereby increasing the risk of necrosis. Other contributing factors include obesity, radiation therapy to the bone, and certain metabolic disorders. Certain lifestyle choices, such as smoking, may also play a role in increasing the likelihood of AVN by affecting overall vascular health. Diagnosis is typically made through a combination of clinical evaluation, medical history, and imaging studies like X-rays, MRI, or CT scans that help visualize the degree of bone damage. Early detection is crucial, as treatment options can prevent further joint deterioration and preserve function. Management strategies often include non-surgical measures like pain relief, physical therapy, and activity modification. In advanced cases, surgical options such as core decompression or osteotomy may be considered to relieve symptoms or restore blood flow. Ultimately, understanding the underlying risk factors and symptoms associated with avascular necrosis is vital for early intervention and optimal patient outcomes.