Fig. 3.

Preoperative and postoperative 36-in.-long cassette radiographs obtained in a patient who had prior L2–5 laminectomy, fusion, and left-sided instrumentation. She underwent a hybrid minimally invasive correction of ASD including removal of old hardware, posterior column osteotomy, placement of L1–4 pedicle screws in an open fashion, T10–12, L5–S1 percutaneous screws followed by L5/S1 ALIF, L1/2, 2/3, 3/4, 4/5 lateral lumbar interbody fusion, L3/4 anterior longitudinal ligament release, and placement of T10–S1 rods. The sagittal vertical axis reduced from 19.7 to 2.8 cm, the lumbar lordosis increased from 12.5° to 51.9°, and the pelvic tilt decreased from 35.1° to 15.1°