Osteonecrosis vs Transient Migratory Osteoporosis

OSTEONECROSIS TRANSIENT MIGRATORY OSTEOPOROSIS
  1. M:F=1:1
  2. PREDISPOSING FACTORS– Tauma, Dislocation, Steroid, Haemoglobinopathies
  3. Onset– Gradual
  4. Course– Progressive
  5. X-ray– Increased bone density
  6. Bone Scan– Decreased activity
  7. MRI– Focal changes
  8. Histopathology– Marrow necrosis & Bone necrosis
  1.  M>F
  2. Unknown
  3. Acute
  4. Self-remitting
  5. Demineralization of Head & neck
  6. Increased activity
  7. Diffuse changes
  8. Marrow oedema with Minimal Bone necrosis