PMC4767839_01
X-ray with weight-bearing on both knees.
gr1.jpg
PMC4767839_01_gr1.jpg
fig0005
Knee XR was performed under conditions of weight-bearing (Fig. 1) and found lateral patellar dislocation.
X-ray of the left knee in lateral view.
gr2.jpg
PMC4767839_01_gr2.jpg
fig0010
The lateral XR on the left knee did not show dislocation (Fig. 2).
Axial X-ray of the left patella.
gr3.jpg
PMC4767839_01_gr3.jpg
fig0015
The axial XR on the left patella again showed lateral dislocation of the patella, in association with trochlear dysplasia (Fig. 3).
Magnetic resonance imaging of the left knee.
gr4.jpg
PMC4767839_01_gr4.jpg
fig0020
MRI on the left knee (Fig. 4) confirmed that in addition to the lateral dislocation of the left patella, there was dysplasia of the trochlea, but without other associated lesions.