Fig. 6

Comparing the distance from the PA to the simulated trajectory needles. The trajectory initiating 20 mm lateral to the edge of the patellar tendon at 0 mm from the PCL had the longest PS (△). The bars show the mean and standard deviation. A–E, the insertion points 0 mm, 5 mm, 10 mm, 15 mm, or 20 mm lateral to the edge of the patellar tendon, respectively. PA popliteal artery, PCL posterior cruciate ligament, PS the shortest distance from the popliteal artery to the simulated trajectory needle