Design Of An Percutaneous Guiding Navigation Template And Its Clinical Application Based On Three-Dimensional Technology

Objective:To develop and validate an individualized precisely navigation template using reverse engineering 、obverse engineering and three-dimensional computer simulation program,which can be used in percutaneous vertebroplasty and percutaneous pedicle screw,and test its preliminary clinical application research.Methods:Choose 5 patient with vertebral compression fracture, 4 patients treated by percutaneous vertebroplasty, 1 cases were treated by percutaneous pedicle screw.An average age of 52.6, and 6 groups, thoracic vertebra 2 group, and 4 groups of lumbar vertebrae, this vertebral body scanning by CT were reconstructed. then import the data to UG NX8.5 to design a percutaneous guiding navigation template, which is used for precise osteotomy. Finally,we imported to 3D-printer, and use the guide plate for the surgical treatment of the patients. Statistics including the operation time, the blood loss,the complication rate of flow, and postoperative hospital stay, etc.Results:The guide plate and the skin fit well,and have high stability, Intraoperative fluoroscopy shows puncture was achieved as expected, bone cement injection location accurate, no wear out pedicle and bone cement leakage happens. Height of vertebral body back to normal, and no complications happen, postoperative recovery and 2 months of follow-up is in good condition.Conclusion:Reverse engineering and three-dimensional computer simulation program make can make the doctor determine the puncture point quickly and precisely, both in the coronal and sagittal plane. And reduce intraoperative radiation, and improve the accuracy and safety of surgery.