Review
Copyright ©The Author(s) 2015.
World J Orthop. Sep 18, 2015; 6(8): 590-601
Published online Sep 18, 2015. doi: 10.5312/wjo.v6.i8.590
Table 4 Clinical and imaging differences between osteonecrosis femoral head and subchondral insufficiency fracture
SIFONFH
Age/sexElderly/female30 s to 40 s
EtiologyOsteoporosis/obeseSteroid/alcohol
BilateralRare50%-70%
Shape of the bandIregular, disconnectedSmooth
High signal of the proximalYesNo
Segment on gadolimium MRI