What are the examination methods for avascular necrosis of the femoral head?
What are the examination methods for avascular necrosis of the femoral head?
①When you feel pain in the hip joint, do not take medicine randomly. Observe for a few days first, and then consult at the hospital.
②When you feel the pain worsen, you can press the painful area deeply to perform the "4" sign test. If it is positive, it indicates the presence of lesions.