How Is Osteonecrosis Diagnosed?

To diagnose osteonecrosis, your doctor will take your medical history and do a physical exam. Your doctor may then order one or more tests to see which bones are affected:

• X ray
• Magnetic resonance imaging (MRI)
• Computed tomography (CT) scan
• Bone scan
• Bone biopsy
• Measure of the pressure inside the bone

Treatment helps more if the disease is diagnosed early.