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  Indian J Med Microbiol
 

Figure 1: Mechanical reference lines and angles for the sagittal plane: (a) General scheme, where mPPFA is the mechanical posterior proximal femoral angle, mPDFA is the mechanical posterior distal femoral angle, mPPTA is the mechanical posterior proximal tibial angle, mADTA is the mechanical anterior distal tibial angle; (b) points of intersection of the mechanical axis with the distal joint line of the femur and the proximal joint line of the tibia

Figure 1: Mechanical reference lines and angles for the sagittal plane: (a) General scheme, where mPPFA is the mechanical posterior proximal femoral angle, mPDFA is the mechanical posterior distal femoral angle, mPPTA is the mechanical posterior proximal tibial angle, mADTA is the mechanical anterior distal tibial angle; (b) points of intersection of the mechanical axis with the distal joint line of the femur and the proximal joint line of the tibia