What does ANB stand for?

Avascular Necrosis of Bone

Avascular Necrosis of Bone (ANB) is a condition characterized by the death of bone tissue due to a lack of blood supply. This can lead to tiny breaks in the bone and eventual collapse. The condition most commonly affects the ends of long bones such as the femur. Causes include long-term steroid use, excessive alcohol consumption, and traumatic injury. Early stages may be asymptomatic, but as the condition progresses, pain and limited range of motion can occur. Diagnosis typically involves imaging tests like MRI or X-rays, and treatment options range from medication to surgery, depending on the severity.

Management of ANB focuses on preserving joint function and preventing further bone damage. Non-surgical treatments include pain relievers and physical therapy to maintain joint mobility. In advanced cases, surgical interventions such as bone grafting or joint replacement may be necessary. The prognosis varies, with early detection and treatment improving outcomes. Research into the underlying mechanisms of ANB continues, aiming to develop more effective therapies. Patients are advised to avoid activities that put excessive stress on the affected bone to prevent worsening of the condition.