Fig. 1.

The femoral origin of the MPFL (red circle) was determined under lateral fluoroscopy according to the method described by Schoettle et al. [14] and was marked with a cannula (arrow)

The femoral origin of the MPFL (red circle) was determined under lateral fluoroscopy according to the method described by Schoettle et al. [14] and was marked with a cannula (arrow)