Computer design combined with three-dimensional printing template for spinal orthopedics can improve surgical accuracy and correction effect

doi:10.3969/j.issn.2095-4344.3785

Abstract

Abstract: BACKGROUND: The difficulty of orthopedic surgery for spinal deformity lies in how to determine the position of the vertebral pedicle of the deformed vertebral body. It is difficult to achieve accurate positioning using traditional CT, X-ray examination and other methods, which affects the surgical effect. Recent research shows that computer technology and three-dimensional (3D) printing templates have advantages in improving positioning and nail placement.
OBJECTIVE: To explore the effect of computer design combined with 3D printing template on spinal orthopedics on surgical accuracy and correction effect.
METHODS: A prospective single-blind randomized controlled study was performed in 73 patients with spinal deformities undergoing orthopedic surgery in the Affiliated Hospital of Chengde Medical College from February 2016 to February 2019. According to the random number table, they were divided into two groups. In the trial group (n=36), computer design combined with 3D printing template was used in orthopedic surgery. In the control group (n=37), conventional orthopedic surgery was applied. The operation situation, the correction rate of Cobb angle, the success rate of nail placement, and the incidence of complications were compared in the two groups. Follow-up was performed for 12 months after operation. Oswestry disability index was compared between the two groups before and 12 months after operation.
RESULTS AND CONCLUSION: (1) The operation time of the trial group was shorter than that of the control group. The number of intraoperative X-ray fluoroscopy and intraoperative blood loss were less in the trial group than those in the control group (P < 0.05). (2) The correction rate of Cobb angle was significantly higher in the trial group (89%) than that in the control group (70%) (P < 0.05). The success rate of nail placement was significantly higher in the trial group (100%) than that in the control group (81%) (P < 0.05). (3) There was no statistically significant difference in the incidence of postoperative complications between the two groups (P > 0.05). (4) The scores of social activities, sleep quality, daily activities, and pain in each dimension of the Oswestry disability index of the two groups 12 months after operation were lower than those before surgery, and those scores in the trial group were lower than those in the control group (P < 0.05). (5) These results suggest that computer design combined with 3D printing templates for spinal orthopedic surgery can shorten the operation time, reduce surgical trauma, reduce the number of intraoperative X-ray fluoroscopy, improve surgical accuracy and correction effect, and reduce the degree of postoperative dysfunction.

Key words: spinal orthopedics, computer, 3D printing template, dysfunction, Cobb angle, nail placement

CLC Number:

Liu Zhengpeng, Wang Yahui, Ming Ying, Sun He. Computer design combined with three-dimensional printing template for spinal orthopedics can improve surgical accuracy and correction effect[J]. Chinese Journal of Tissue Engineering Research, 2021, 25(12): 1826-1830.

Figures/Tables 7

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