PMC6597494_01
The clinical pictures lateral dislocation of right patella in extension, midflexion and flexion position.
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PMC6597494_01_gr4.jpg
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On physical examination, the right knee had 18  of valgus deformity, moderate instability to valgus stress, complete lateral dislocation of the patellae during extension and flexion, and tenderness at the lateral joint line (Fig. 4).
Anteroposterior, Lateral and Skyline view plain radiograph showed the lateral patellar dislocation.
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PMC6597494_01_gr5.jpg
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A skyline view radiograph showed complete lateral dislocation of the patella (Fig. 5).
X ray AP, lateral and skyline view radiograph show the lateral patellar dislocation.
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Long-leg radiographs of the left leg showed a mechanical angle of 11  of valgus, and the weight bearing line locates lateral to Fujisawa point (Fig. 6, Fig. 7, Fig. 8).
CT scan and MRI show dislocation of patella '.
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Long-leg radiographs of the left leg showed a mechanical angle of 11  of valgus, and the weight bearing line locates lateral to Fujisawa point (Fig. 6, Fig. 7, Fig. 8).