Which of the following projections will demonstrate the patellofemoral joint open?
AP oblique with lateral rotation
mediolataral
AP
AP oblique with medial rotation
mediolataral
Rationale: The mediolateral projection of the knee with proper flexion of about 20 degrees will help open the patellofemoral joint. Overflexion of the part and/or extreme rotation of the femoral condyles will close off the patellofemoral joint.
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