Minimally Invasive Transforaminal Lumbar Interbody Fusion at L5-S1 through a Unilateral Approach: Technical Feasibility and Outcomes

Figure 4

By angulating the tubular retractor so that its distal end is facing more towards the opposite side of the surgeon, visualization and access to the contralateral side are improved. Tilting the table towards the opposite side, as seen in the figure, can help the surgeon maintain a more natural posture, as the retractor would be more perpendicular to the floor.