Evaluation of a Three-Dimensional Printed Guide and a Polyoxymethylene Thermoplastic Regulator for Percutaneous Pedicle Screw Fixation in Patients with Thoracolumbar Fracture

Zhang, Ming; Li, Jiayi; Fang, Tao; Zhao, Jiali; Pan, Wei Ren; Wang, Xinhong; Xu, Jin; Zhou, Quan

doi:10.12659/msm.920578

Cited by 7 publications

(7 citation statements)

References 35 publications

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“…22 Previously we designed a at end lotus-style regulator with porous structure to improve the accuracy and safety of the PPSF. 23 Still, in our study, the rate of pedicle screw successfully inserted by the rst time is low, and misinsertion still happened. To solve these problems, we designed a second version of lotus-style regulator with pointed end to further improve the accuracy of insertion point and Angle of the insertion needle in PPSF (Fig.…”

Section: Introductionmentioning

confidence: 54%

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

Zhang¹,

Li²,

Fang³

et al. 2021

Preprint

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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.60thoracolumbar 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. The experimental results showed that the highest number of pedicle screw successfully inserted by the first time was in group C, while lowest in group A (P<0.05). The total time of fluoroscopy and operation were lower in group C, and higher in group A (P<0.05). VAS and ODI scores were all lower after surgery than before surgery in 3groups. VAS and ODI scores were lower in group B and C, compared with group A at day 1 ,7 after surgery (P<0.05). KA decreased significantly in 3 groups after surgery and no difference in KA change between 3 groups (P>0.05). Taken together, Application of the 3D printing guide template in combination with pointed lotus-style regulator improved the accuracy of pedicle insertion.Trial registration: ClinicalTrials.gov Identifier: NCT04980131. Registered 18/07/2021.

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Section: Introductionmentioning

confidence: 54%

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

Zhang¹,

Li²,

Fang³

et al. 2021

Preprint

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“…Outcomes showed no dislocation on CT, significantly shortened the operation time, and reduced radiation exposure. Mere et al used guided navigation and a manual method, respectively, to place 54 PSs in 20 patients [18] . The prevalence of perforation and migration of PSs were decreased significantly in the navigation group.…”

Section: Resultsmentioning

confidence: 99%

Application of a Personalized 3D-Printed Guide Plate for Implantation of Thoracolumbar Pedicle Screws for Patients with Ankylosing Spondylitis

Yu¹,

Xu²,

Yao³

et al. 2020

ijps

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Yui et al.: Application of Personalized 3D-Printed Guide PlateTo investigate the application of a "personalized" guide plate for pedicle screw insertion in the thoracolumbar spine of patients with ankylosing spondylitis using three-dimensional printing. Twenty ankylosing spondylitis patients with a thoracolumbar vertebral fracture were examined using computed tomography. Anatomic digital imaging and communications in medicine data was reconstructed to stereolithography data through M3D software. Three-dimensional printing was done using fused deposition modeling. The length and diameter of pedicle screw, angle between the pedicle screws and the horizontal plane, angle between the PS and the sagittal plane, and distance between the entry position and midline were measured based on three-dimensional printing. Time of operation, intraoperative blood loss, postoperative drainage volume, time of nailing, time of radiation exposure and Japanese orthopedic association scores were also recorded. No significant difference between the preoperative predicted value and actual values of the pedicle screw was found in the three-dimensional printing group for length and diameter of pedicle screw, angle between the pedicle screw and the horizontal plane, angle between the pedicle screw and the sagittal plane and distance between the entry position and midline. The Time of operation, intraoperative blood loss and postoperative drainage volume of the three-dimensional printing group were significantly better than those of the non-three-dimensional printing group. Moreover, the time of nailing and time of radiation exposure of patients in the three-dimensional printing group were significantly shorter than those of the non-three-dimensional printing group. Japanese orthopedic association scores at 1, 2 and 4 w after surgery in the three-dimensional printing group were significantly higher than those in the non-threedimensional printing group, but there was no significant difference between groups at 6 mo. A personalized guide plate constructed by three-dimensional printing could assist thoracolumbar pedicle screw insertion in ankylosing spondylitis patients.

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“…The actively developing technique of INT manufactured using 3D printing technologies has become the subject of multiple studies devoted to its application in all parts of the spine [14][15][16][17][18][19][20][21]. The use of templates in the lumbar spine is limited by the anatomical features of this area, namely, the paravertebral muscles preventing the adequate positioning of the INT when choosing the classical transpedicular trajectory of implantation [22,23].…”

Section: Discussionmentioning

confidence: 99%

Individual Navigation Templates for Subcortical Screw Placement in Lumbar Spine

Коваленко¹,

Кашин²,

Cherebillo³

2021

Sovrem Tehnol Med

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Subcortical screw placement is currently performed using frontal view fluoroscopy or intraoperative O-arm navigation system. The emergence of a novel technique for spinal navigation based on individual navigation templates created using 3D printing technology determines the need to study their safety and effectiveness in subcortical implantation. The aim of the study was to evaluate and compare the efficacy of subcortical implantation of pedicle screws in the lumbar spine using individual navigation templates versus intraoperative fluoroscopy. Materials and Methods The study was based on the analysis of treatment results in 39 patients who underwent surgery with subcortical implantation of 130 screws using the MidLIF technique. In group 1, navigation templates were used, in group 2 — intraoperative fluoroscopic control. Comparative analysis of implantation correctness and time, the total operation time, and radiation load was performed. Results The mean distance between the screw and the cortical plate recorded in the groups ranged within 1.20–3.97 mm, without statistically significant difference (p>0.05). The mean time of pedicle screw implantation was 137.0 [115.25; 161.50] s in group 1 and 314.0 [183.50; 403.25] s in group 2. The total operation time was reduced from 173.0 [155.0; 192.25] min in group 2 to 119.0 [108.0; 128.75] min in group 1. The average of 1.0 [1.0; 2.0] X-ray image was performed to place one screw in group 1, while it was 12.0 [10.0; 13.25] in group 2. The differences between the groups in terms of implantation time and radiation load were statistically significant (p<0.05). Conclusion Compared with intraoperative fluoroscopy, the use of individual navigation templates for subcortical implantation of pedicle screws provides their correct positioning with a significant reduction in both operation time and radiation load at similar safety.

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Evaluation of a Three-Dimensional Printed Guide and a Polyoxymethylene Thermoplastic Regulator for Percutaneous Pedicle Screw Fixation in Patients with Thoracolumbar Fracture

Cited by 7 publications

References 35 publications

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

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

Application of a Personalized 3D-Printed Guide Plate for Implantation of Thoracolumbar Pedicle Screws for Patients with Ankylosing Spondylitis

Individual Navigation Templates for Subcortical Screw Placement in Lumbar Spine

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