Figure 2.

Quadriceps-Patellar Force Diagram. VMO- Vastus medialis obliquus; VML- Vastus medialis longus; RF- Rectus femoris; VI- Vastus intermedius; VLL- Vastus lateralis longus; VLO- Vastus lateralis obliquus; P- Patella; TT- Tibial Tubercle; T- Tibia; MR- Medial retinaculum; LR- Lateral retinaculum.