Plain XR is poorly sensitive in early stages, as low as 41%
AP and Frog leg views
MRI ~90% sensitivity and specificity
Best test
Bone Scan (aka Bone Scintigraph)
May show evidence of early bone ischemia
AP and Frog leg views
Best test
May show evidence of early bone ischemia
Avascular necrosis of hip
Acute Trauma
Hip bursitis
Femur fracture
Ankle dislocation
Proximal
Knee dislocation
Intracapsular