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7Posterior column: fixation

Fluoroscopic navigation of the posterior column screw placement

The iliac oblique view can be used to position the anterior to posterior screws. With the C-arm rolled away from the surgeon 45°, the posterior column is well visualized and the access unobstructed.

The drill can be advanced down the posterior column under fluoroscopic guidance, ensuring an extraarticular position as shown in the image. The screw can then be placed in the same tract.