Optimal Condition to Create Femoral Tunnel Considering Combined Influence of Knee Flexion and Transverse Drill Angle in Anatomical Single-Bundle ACL Reconstruction Using Medial Portal Technique: 3D Simulation Study

Figure 2

Variables at the twelve conditions by combination of flexion angle and transverse drill angle were measured. (a) The knee flexion angles were changed at intervals of 10° from 100° to 130° on the transepicondylar axis. (b) The possible maximum transverse drill angle of rotation can be achieved without coming into contact with the cartilage of medial femoral condyle. The first drill angle was determined as the maximum transverse drill angle (MTA) and the other two drill angles were determined as MTA-10° and MTA-20° by moving drill laterally.

(a)

(b)