Subchondral insufficiency fracture of the femoral head: magnetic resonance imaging findings correlated with micro-computed tomography and histopathology.
We described magnetic resonance (MR) imaging findings of subchondral insufficiency fracture of the femoral head without collapse in which micro-computed tomography (CT) and histopathologic studies were performed. Magnetic resonance imaging showed a subchondral low-signal intensity band, which corresponded to the fracture callus. Diffuse bone marrow edema with contrast enhancement effect was seen in both the proximal and distal segments of the low-signal intensity band. These features are distinct from those of avascular necrosis.
Uetani
Masataka
M
Division of Radiological Science, Department of Radiology and Radiation Research, Nagasaki University Graduate School of Medical Sciences, Nagasaki, Japan. uetani@net.nagasaki-u.ac.jp
Hashmi
Rashid
R
Ito
Masako
M
Okimoto
Tomoaki
T
Kawahara
Yasuhiro
Y
Hayashi
Kuniaki
K
Enomoto
Hiroshi
H
Shindo
Hiroyuki
H
D000368:Aged; D005260:Female; D005264:Femoral Fractures / Q000175:diagnosis* / Q000473:pathology; D005270:Femur Head / Q000000981:diagnostic imaging* / Q000293:injuries*; D006801:Humans; D008279:Magnetic Resonance Imaging; D013223:Statistics as Topic; D014057:Tomography, X-Ray Computed