This document discusses techniques for pedicle screw insertion during spinal surgery. It describes the lumbar vertebrae anatomy and steps for pedicle screw placement, including defining the entry point, opening the cortex, probing the pedicle tract, appropriate cranial-caudal and medial-lateral trajectories, tapping if needed, and inserting the screw across the pedicle and into the vertebral body. An example case is provided of a 25-year-old male patient who underwent this procedure to treat an L1 vertebral fracture with paraplegia.