Clinical efficacy of 3D-printed guide plate-assisted posterior lumbar laminectomy and bone graft fusion with internal fixation in treatment of degenerative scoliosis
Objective To observe the clinical efficacy of 3D-printed guide plate-assisted posterior lumbar laminectomy and bone graft fusion with internal fixation surgery,assisted by 3D-printed guide plates,in the treatment of degenerative scoliosis.Methods A retrospective analysis was conducted on 47 cases of degenerative scoliosis who underwent 3D-printed guide plate-assisted posterior lumbar laminectomy and bone graft fusion with internal fixation surgery between July 2018 and Octo-ber 2020.The patients were categorized into two groups based on the method of intraoperative screw placement:the printing group(n=25,with 3D-printed guide plates utilized for screw placement)and the traditional group(n=22,with screws manually placed).The intraoperative screw placement time,number of fluoroscopy exposures,blood loss,number of screw adjustments,number of screws placed,and screw grades were compared between the two groups,along with the postoperative screw accep-tance rate,accuracy rate,complication rate,and main curve correction rate.Results All patients were followed up for 12 to 18 months,with an average of 14.5 months.No statistically significant differences were found in the diameter,length,and lateral angle of the pedicle screws placed intraoperatively in the printing group compared to the preoperative statistical records(P＞0.05).The printing group experienced significantly reduced intraoperative screw placement time,number of fluoroscopy expo-sures,blood loss,and number of screw adjustments compared to the traditional group.The printing group also demonstrated su-perior screw grading,accuracy rate,and acceptance rate,with statistically significant differences(P＜0.05).No statistically sig-nificant differences were observed in the postoperative screw complication rate and main curve correction rate between the two groups(P＞0.05).Conclusion The 3D-printed guide plate-assisted posterior lumbar laminectomy and bone graft fusion with internal fixation surgery,assisted by 3D-printed guide plates,for the treatment of degenerative scoliosis yields satisfactory out-comes.It not only achieves precise screw placement and correction of scoliosis deformity but also significantly enhances the ac-curacy of screw placement,optimizes surgical procedures,decreases surgical complexity,minimizes radiation exposure and blood loss,and ensures the efficiency and safety of the surgery.
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