Application effect of 3D printing-assisted underpinning in percutaneous pedicle screw internal fixation for patients with thoracolumbar fractures
CHEN Yanping
WANG Fangfang
SHI Jiaxiao
Abstract：Objective To analyze the effect of 3D printing-assisted underpinning on the spinal function of patients with thoracolumbar fracture during percutaneous pedicle screw internal fixation.Methods A total of 106 patients with thoracolumbar fractures who were diagnosed and treated in Cangzhou Hospital of Integrated TCM-WM.HEBEI from October 2020 to October 2022 were recruited and randomly divided into the control group(53 cases received fluoroscopic guidance during percutaneous pedicle screw internal fixation)and observation group(53 cases received 3D printing-assisted underpinning in percutaneous pedicle screw internal fixation treatment).The perioperative indexes,nailing condition,stress response,kyphotic Cobb Angle,anterior edge height of injured vertebra,pain status and spinal function of the two groups were compared.Results In the observation group,the intraoperative blood loss and fluoroscopy times were significantly lower than the control group,and the number of nails accurately placed for the first time was significantly higher than the control group,and the operation time and hospitalization time were significantly shorter than those in the control group.(P＜0.05).In the observation group,the accuracy of nail placement was significantly higher than that of the control group(94.20％vs 64.97％,P＜0.05).On the postoperative day,the levels of creatine kinase(CK),norepinephrine(NE),and cortisol(Cor)in both groups were significantly higher than the preoperative values,but postoperative values were significantly lower in the observation group than the control group(P＜0.05).Immediately after surgery and 12 months after surgery,the kyphotic Cobb angle of the observation group was significantly lower than that of the control group(P＜0.05).Immediately after surgery,the anterior edge height of the injured vertebra in the observation group was significantly higher than that of the control group(P＜0.05).At 12 months after surgery,the anterior edge height of the injured vertebra was comparable between the two groups(P＞0.05).At 3 months,6 months,9 months and 12 months after surgery,the Visual Analogue Scale(VAS)scores and the Oswestry Disability Index(ODI)in the observation group were significantly lower than those of the control group(P＜0.05).Conclusion 3D printing-assisted underpinning in percutaneous pedicle screw fixation in patients with thoracolumbar fractures can achieve significant results,which improves perioperative indexes,accuracy of pedicle fixation,stress response,kyphotic Cobb angle,anterior edge height of the injured vertebral,pain status and spinal function.
Keywords：thoracolumbar fracturepercutaneous pedicle screw internal fixation3D printingstress responsespinal function
Publication Date：2025-03-26
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 415-419 )