Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: 3D-printed Module-assisted Minimally Invasive Lumbar Pedicle Screw Placement: a Retrospective, Self-controlled, Open-label Clinical Trial
Brief Summary: To explore the accuracy of 3D printed module assisted minimally invasive lumbar pedicle screw placement using Quandrant system, and verify its feasibility of reducing error rate of screw placement and postoperative complications.