Application of 3-Dimensional Printing Guide Template and Pointed Lotus-style Regulator

Application of 3-Dimensional Printing Guide Template and Pointed Lotus-style Regulator in Percutaneous Pedicle Screw Fixation for Thoracolumbar Fractures

This study aims to analysis the efficacy of the 3D printing percutaneous guide template in combination with the pointed lotus-style regulator in percutaneous pedicle screw fixation.

All thoracolumbar fractures patients receiving percutaneous pedicle screw fixation (PPSF) were enrolled and randomly divided into 3 groups. Patients in Group A received traditional PPSF, while patients in Group B received PPSF with flat end lotus-style regulator and patients in Group C received PPSF with pointed lotus-style regulator.

Inclusion Criteria:

• The thoracolumbar vertebral compression fracture which the injury time is less than 7 days
• The vertebral fracture sites where are located in T11-L2
• No clinical neurological symptoms and signs
• The patients who have complete preoperative X-ray, CT, MRI and other imaging data

Exclusion Criteria:

• Vertebral burst fracture with spinal canal occupation
• Fracture caused by severe osteoporosis or tumor and other pathological factors
• Moderate and severe scoliosis
• Patients with pedicle dysplasia
• Patients with severe heart, liver and kidney diseases, diabetes, immune diseases, mental diseases who cannot tolerate surgery
• Coagulation dysfunction or surgical site of the skin infection