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Zhang Y, Yang H, Han C, Zhang Y, Zhou L, Hai Y. Precise execution of personalized surgical planning using three-dimensional printed guide template in severe and complex adult spinal deformity patients requiring three-column osteotomy: a retrospective, comparative matched-cohort study. J Orthop Surg Res 2024; 19:278. [PMID: 38704574 PMCID: PMC11069141 DOI: 10.1186/s13018-024-04712-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 04/01/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND The surgical treatment of severe and complex adult spinal deformity (ASD) commonly required three-column osteotomy (3-CO), which was technically demanding with high risk of neurological deficit. Personalized three dimensional (3D)-printed guide template based on preoperative planning has been gradually applied in 3-CO procedure. The purpose of this study was to compare the efficacy, safety, and precision of 3D-printed osteotomy guide template and free-hand technique in the treatment of severe and complex ASD patients requiring 3-CO. METHODS This was a single-centre retrospective comparative cohort study of patients with severe and complex ASD (Cobb angle of scoliosis > 80° with flexibility < 25% or focal kyphosis > 90°) who underwent posterior spinal fusion and 3-CO between January 2020 to January 2023, with a minimum 12 months follow-up. Personalized computer-assisted three-dimensional osteotomy simulation was performed for all recruited patients, who were further divided into template and non-template groups based on the application of 3D-printed osteotomy guide template according to the surgical planning. Patients in the two groups were age- and gender- propensity-matched. The radiographic parameters, postoperative neurological deficit, and precision of osteotomy execution were compared between groups. RESULTS A total of 40 patients (age 36.53 ± 11.98 years) were retrospectively recruited, with 20 patients in each group. The preoperative focal kyphosis (FK) was 92.72° ± 36.77° in the template group and 93.47° ± 33.91° in the non-template group, with a main curve Cobb angle of 63.35° (15.00°, 92.25°) and 64.00° (20.25°, 99.20°), respectively. Following the correction surgery, there were no significant differences in postoperative FK, postoperative main curve Cobb angle, correction rate of FK (54.20% vs. 51.94%, P = 0.738), and correction rate of main curve Cobb angle (72.41% vs. 61.33%, P = 0.101) between the groups. However, the match ratio of execution to simulation osteotomy angle was significantly greater in the template group than the non-template group (coronal: 89.90% vs. 74.50%, P < 0.001; sagittal: 90.45% vs. 80.35%, P < 0.001). The operating time (ORT) was significantly shorter (359.25 ± 57.79 min vs. 398.90 ± 59.48 min, P = 0.039) and the incidence of postoperative neurological deficit (5.0% vs. 35.0%, P = 0.018) was significantly lower in the template group than the non-template group. CONCLUSION Performing 3-CO with the assistance of personalized 3D-printed guide template could increase the precision of execution, decrease the risk of postoperative neurological deficit, and shorten the ORT in the correction surgery for severe and complex ASD. The personalized osteotomy guide had the advantages of 3D insight of the case-specific anatomy, identification of osteotomy location, and translation of the surgical planning or simulation to the real surgical site.
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Affiliation(s)
- Yangpu Zhang
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Gongti South Rd, No. 8, Beijing, 100020, China
| | - Honghao Yang
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Gongti South Rd, No. 8, Beijing, 100020, China
| | - Chaofan Han
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Gongti South Rd, No. 8, Beijing, 100020, China
| | - Yiqi Zhang
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Gongti South Rd, No. 8, Beijing, 100020, China
| | - Lijin Zhou
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Gongti South Rd, No. 8, Beijing, 100020, China.
| | - Yong Hai
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Gongti South Rd, No. 8, Beijing, 100020, China.
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Xu HF, Li C, Tang G, Li TQ, Fan ZZ, Huang LY. 3D-printed guides versus computer navigation for pedicle screw placement in the surgical treatment of congenital scoliosis deformities. J Orthop Surg (Hong Kong) 2024; 32:10225536241233785. [PMID: 38378476 DOI: 10.1177/10225536241233785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2024] Open
Abstract
BACKGROUND To compare the safety and clinical outcomes of 3D-printed guides versus computer navigation for pedicle screw placement in the correction of congenital scoliosis deformities. METHODS The study was a single-centre retrospective controlled study and was approved by the hospital ethics committee for the analysis all patients under the age of 18 years with at least 2 years of follow-up. Sixty-three patients who underwent surgical correction for congenital scoliosis deformities in our hospital from January 2015 to December 2020 were divided into two groups based on the decision following preoperative doctor‒patient communication. Among them, 43 patients had pedicle screws placed with 3D-printed guider plates, while the remaining 20 patients had screws inserted with the assistance of computer navigation. The perioperative period, follow-up results and imaging data were compared between the groups. RESULTS The operation was completed successfully for patients in both groups. The 3D-printed guide-assisted screw placement technique proved to be significantly superior to the computer navigation technique in terms of operation time, screw placement time, and intraoperative blood loss (p < .05), although the former had more frequent intraoperative fluoroscopies than the latter (p < .05). The mean follow-up time was 41.4 months, and the SRS-22 scores significantly improved in both groups over time postoperatively (p < .05). The 3D-printing group had better SRS-22 scores than the navigation group 6 months after surgery and at the last follow-up (p < .05). Compared with preoperative values, the coronal Cobb angle, local kyphotic Cobb angle, C7-S1 coronal deviation (C7PL-CSVL), and sagittal deviation (SVA) were significantly improved in both groups after surgery (p < .05). CONCLUSION Both techniques achieve the purpose of precise screw placement and proper correction of the deformities. In contrast, the 3D-printed guide-assisted screw placement technique showed advantages in terms of operation time, screw placement time, intraoperative blood loss and patient satisfaction with outcomes.
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Affiliation(s)
- Hui-Fa Xu
- Department of Orthopaedics, First Affiliated Hospital, Air Force Military Medical University, Xi'an, China
| | - Chao Li
- Department of Orthopaedics, First Affiliated Hospital, Air Force Military Medical University, Xi'an, China
| | - Guoliang Tang
- Department of Orthopaedics, First Affiliated Hospital, Air Force Military Medical University, Xi'an, China
| | - Tian-Qing Li
- Department of Orthopaedics, First Affiliated Hospital, Air Force Military Medical University, Xi'an, China
| | - Zong-Zhi Fan
- Department of Orthopaedics, First Affiliated Hospital, Air Force Military Medical University, Xi'an, China
| | - Lu-Yu Huang
- Department of Orthopaedics, First Affiliated Hospital, Air Force Military Medical University, Xi'an, China
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Lu C, Ma L, Wang X, Yao Q, Zhang C, Du Y, Li W, Jian F. Comparison of 3D-printed Navigation Template-assisted Pedicle Screws versus Freehand Screws for Scoliosis in Children and Adolescents: A Systematic Review and Meta-analysis. J Neurol Surg A Cent Eur Neurosurg 2023; 84:188-197. [PMID: 36070792 DOI: 10.1055/a-1938-0254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND There is a lack of attention to screw placement techniques for surgical treatment of scoliosis in children and adolescents. This meta-analysis aims to compare the accuracy and safety of pedicle screw placement between the 3D-printed navigation template technique and the freehand technique during corrective surgery for scoliosis in children and adolescents. METHODS A comprehensive search was conducted for relevant articles up to December 2021 in databases including PubMed, Embase, MEDLINE, Cochrane, and Web of Science. The systematic meta-analysis compared the efficacy of pedicle screw placement between the two techniques, including accuracy of pedicle screw placement, complication rate, operation time, blood loss, mean placement time per screw, and mean times for fluoroscopy. RESULTS The seven articles analyzed in this study involved 229 patients altogether. A total of 2,805 pedicle screws were placed by the two methods. Our results revealed that the 3D-printed guide template technique was more accurate than the freehand technique in pedicle screw placement (odds ratio [OR] =2.96; 95% confidence interval [CI]: 2.24-3.91; p < 0.000) with a lower complication rate (OR = 0.21; 95% CI: 0.06-0.78; p = 0.02). The operation time (mean difference [MD] = -34.37; 95% CI: -67.47 to -1.28; p = 0.04) and mean placement time per screw (MD = -3.11; 95% CI: -6.13 to -0.09; p = 0.04) and mean times for fluoroscopy (MD = -6.60; 95% CI: -8.66 to -4.55; p < 0.000) significantly decreased among patients in the 3D-printed navigation template group compared with those in the freehand technique group. In addition, the two techniques had no significant statistical difference in blood loss. CONCLUSIONS Compared with the traditional freehand technique, the 3D-printed guide template is a promising technique with higher accuracy and safety in screw placement for surgical treatment of scoliosis in children and adolescents, and is worth popularizing and validating through more prospective clinical studies.
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Affiliation(s)
- Chunli Lu
- Division of Spine, Department of Neurosurgery, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China.,Research Center of Spine and Spinal Cord, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.,Lab of Spinal Cord Injury and Functional Reconstruction, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China
| | - Longbing Ma
- Division of Spine, Department of Neurosurgery, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China.,Research Center of Spine and Spinal Cord, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.,Lab of Spinal Cord Injury and Functional Reconstruction, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China
| | - Xinyu Wang
- Division of Spine, Department of Neurosurgery, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China.,Research Center of Spine and Spinal Cord, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.,Lab of Spinal Cord Injury and Functional Reconstruction, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China
| | - Qingyu Yao
- Division of Spine, Department of Neurosurgery, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China.,National Engineering Laboratory for Neuromodulation, School of Aerospace Engineering, Tsinghua University, Beijing, China
| | - Can Zhang
- Division of Spine, Department of Neurosurgery, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China.,Research Center of Spine and Spinal Cord, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.,Lab of Spinal Cord Injury and Functional Reconstruction, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China
| | - Yueqi Du
- Division of Spine, Department of Neurosurgery, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China.,Research Center of Spine and Spinal Cord, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.,Lab of Spinal Cord Injury and Functional Reconstruction, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China
| | - Wei Li
- Division of Spine, Department of Neurosurgery, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China.,Research Center of Spine and Spinal Cord, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.,Lab of Spinal Cord Injury and Functional Reconstruction, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China
| | - Fengzeng Jian
- Division of Spine, Department of Neurosurgery, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China.,Research Center of Spine and Spinal Cord, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.,Lab of Spinal Cord Injury and Functional Reconstruction, China International Neuroscience Institute (CHINA-INI), Capital Medical University, Xuanwu Hospital, Beijing, China
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Jacob J, Stunden C, Zakani S. Exploring the value of three-dimensional printing and virtualization in paediatric healthcare: A multi-case quality improvement study. Digit Health 2023; 9:20552076231159988. [PMID: 36865771 PMCID: PMC9972041 DOI: 10.1177/20552076231159988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 02/09/2023] [Indexed: 03/02/2023] Open
Abstract
Background Three-dimensional printing is being utilized in clinical medicine to support activities including surgical planning, education, and medical device fabrication. To better understand the impacts of this technology, a survey was implemented with radiologists, specialist physicians, and surgeons at a tertiary care hospital in Canada, examining multidimensional value and considerations for uptake. Objectives To examine how three-dimensional printing can be integrated into the paediatric context and highlight areas of impact and value to the healthcare system using Kirkpatrick's Model. Secondarily, to explore the perspective of clinicians utilizing three-dimensional models and how they make decisions about whether or not to use the technology in patient care. Methods A post-case survey. Descriptive statistics are provided for Likert-style questions, and a thematic analysis was conducted to identify common patterns in open-ended responses. Results In total, 37 respondents were surveyed across 19 clinical cases, providing their perspectives on model reaction, learning, behaviour, and results. We found surgeons and specialists to consider the models more beneficial than radiologists. Results further showed that the models were more helpful when used to assess the likelihood of success or failure of clinical management strategies, and for intraoperative orientation. We demonstrate that three-dimensional printed models could improve perioperative metrics, including a reduction in operating room time, but with a reciprocal effect on pre-procedural planning time. Clinicians who shared the models with patients and families thought it increased understanding of the disease and surgical procedure, and had no effect on their consultation time. Conclusions Three-dimensional printing and virtualization were used in preoperative planning and for communication among the clinical care team, trainees, patients, and families. Three-dimensional models provide multidimensional value to clinical teams, patients, and the health system. Further investigation is warranted to assess value in other clinical areas, across disciplines, and from a health economics and outcomes perspective.
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Affiliation(s)
- John Jacob
- Faculty of Medicine, Department of Paediatrics, University of British
Columbia, Vancouver, BC, Canada
- Digital Lab, BC Children's Hospital, Vancouver, BC, Canada
- Bayes Business School, City, University of London, London, UK
- John Jacob, Faculty of Medicine, Department
of Paediatrics, University of British Columbia, 2D19 – 4480 Oak Street,
Vancouver, BC V6H 3V4, Canada.
| | - Chelsea Stunden
- Faculty of Medicine, Department of Paediatrics, University of British
Columbia, Vancouver, BC, Canada
- Digital Lab, BC Children's Hospital, Vancouver, BC, Canada
| | - Sima Zakani
- Faculty of Medicine, Department of Paediatrics, University of British
Columbia, Vancouver, BC, Canada
- Digital Lab, BC Children's Hospital, Vancouver, BC, Canada
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Cao J, Zhang X, Liu H, Yao Z, Bai Y, Guo D, Feng L. 3D printed templates improve the accuracy and safety of pedicle screw placement in the treatment of pediatric congenital scoliosis. BMC Musculoskelet Disord 2021; 22:1014. [PMID: 34863150 PMCID: PMC8645104 DOI: 10.1186/s12891-021-04892-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 11/19/2021] [Indexed: 12/17/2022] Open
Abstract
Background Three-dimensional (3-D) printed guidance templates are being increasingly used in spine surgery. The purpose of this study was to determine if 3D printed navigation templates can improve the accuracy of pedicle screw placement and decrease the complication rate compared to freehand screw placement in the treatment of children with congenital scoliosis. Methods The records of pediatric patients with congenital scoliosis treated at our hospital from January 2017 to January 2019 were retrospectively reviewed. Patients were divided into those where a 3D printed guidance templated was used and those in which the freehand method was used for pedicle screw placement. The accuracy rate of pedicle screw placement, surgical outcomes, and complications were compared between groups. Results A total of 67 children with congenital scoliosis were included (43 males and 24 females; mean age of 4.13 ± 2.66 years; range, 2–15 years). There were 34 children in the template-assisted group and 33 in the freehand group. The excellent accuracy rate of pedicle screw placement was significantly higher in the template-assisted group (96.10% vs. 88.64%, P = 0.007). The main Cobb angle and kyphosis angle were similar between the 2 groups preoperatively and postoperatively (all, P > 0.05), and in both groups both angles were significantly decreased after surgery as compared to the preoperative values (all, P < 0.001). The degree of change of the Cobb angle of the main curve and kyphosis angle were not significantly different between the 2 groups. There were no postoperative complications in the template group and 4 in the freehand group (0% vs. 12.12%; P = 0.009). All 4 patients with complications required revision surgery. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-021-04892-4.
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Affiliation(s)
- Jun Cao
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, #56 Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Xuejun Zhang
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, #56 Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China.
| | - Haonan Liu
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, #56 Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Ziming Yao
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, #56 Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Yunsong Bai
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, #56 Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Dong Guo
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, #56 Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Lei Feng
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, #56 Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
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Liang W, Han B, Hai JJ, Hai Y, Chen L, Kang N, Yin P. 3D-printed drill guide template, a promising tool to improve pedicle screw placement accuracy in spinal deformity surgery: A systematic review and meta-analysis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2021; 30:1173-1183. [PMID: 33558972 DOI: 10.1007/s00586-021-06739-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/22/2020] [Accepted: 01/17/2021] [Indexed: 12/24/2022]
Abstract
PURPOSE This study aimed to compare the pedicle screw placement accuracy and surgical outcomes between 3D-printed (3DP) drill guide template technique and freehand technique in spinal deformity surgery. METHODS A comprehensive systematic literature search of databases (PubMed, Embase, Cochrane Library, and Web of Science) was conducted. The meta-analysis compared the pedicle screw placement accuracy and other important surgical outcomes between the two techniques. RESULTS A total of seven studies were included in the meta-analysis, comprising 87 patients with 1384 pedicle screws placed by 3DP drill guide templates and 88 patients with 1392 pedicle screws placed by freehand technique. The meta-analysis results revealed that the 3DP template technique was significantly more accurate than the freehand technique to place pedicle screws and had a higher rate of excellently placed screws (OR 2.22, P < 0.001) and qualifiedly placed screws (OR 3.66, P < 0.001), and a lower rate of poorly placed screws (OR 0.23, P < 0.001). The mean placement time per screw (WMD-1.99, P < 0.05), total screw placement time (WMD-27.86, P < 0.001), and blood loss (WMD-104.58, P < 0.05) were significantly reduced in the 3DP template group compared with the freehand group. Moreover, there was no significant statistical difference between the two techniques in terms of the operation time and correction rate of main bend curve. CONCLUSIONS This study demonstrated that the 3DP drill guide template was a promising tool for assisting the pedicle screw placement in spinal deformity surgery and deserved further promotion.
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Affiliation(s)
- Weishi Liang
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, GongTiNanLu 8#, Chaoyang District, Beijing, 100020, China
| | - Bo Han
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, GongTiNanLu 8#, Chaoyang District, Beijing, 100020, China
| | - Junrui Jonathan Hai
- Junior High School, The High School Affiliated to Renmin University of China, Beijing, 100080, China
| | - Yong Hai
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, GongTiNanLu 8#, Chaoyang District, Beijing, 100020, China.
| | - Long Chen
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, GongTiNanLu 8#, Chaoyang District, Beijing, 100020, China
| | - Nan Kang
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, GongTiNanLu 8#, Chaoyang District, Beijing, 100020, China
| | - Peng Yin
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, GongTiNanLu 8#, Chaoyang District, Beijing, 100020, China
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Tu Q, Chen H, Ding HW, Yu GW, Miao QJ, Shen JJ, Huang XH, Tang Y, Xia H, Xu JZ. Three-Dimensional Printing Technology for Surgical Correction of Congenital Scoliosis Caused by Hemivertebrae. World Neurosurg 2021; 149:e969-e981. [PMID: 33508486 DOI: 10.1016/j.wneu.2021.01.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVE This study aimed to explore the clinical application of three-dimensional (3D) printing technology in the surgical treatment of congenital scoliosis caused by hemivertebrae. METHODS Twenty-four patients (11 in the 3D-printing group and 13 in the conventional group) with scoliosis secondary to a single hemivertebra were retrospectively reviewed. All patients underwent hemivertebrectomy and short-segment fixation. Virtual preoperative planning, operation simulation, and intraoperative application of 3D-printed patient-specific templates were performed in the 3D-printing group. Hemorrhage volume, operation time, transfusion, and complications were noted. Radiographic parameters were evaluated preoperatively, postoperatively, and at final follow-up. RESULTS All patients had different degrees of successfully corrected scoliosis. There was a similar correction of the Cobb angle postoperatively between the 2 groups. The operation time, blood loss, transfusion, time for the insertion of each screw, accuracy of screw placement, and complication rate in the 3D-printing group were significantly superior to those in the control group. No patient experienced major complications. No significant correction loss or instrument dysfunction was observed during follow-up. CONCLUSIONS As a viable and effective auxiliary technology, 3D printing makes it possible for surgery to meet both surgeon-specific and patient-specific requirements. 3D-printed individualized templates allow surgery for the correction of congenital scoliosis to enter a new stage of personalized precision surgery.
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Affiliation(s)
- Qiang Tu
- Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing, China; Department of Orthopaedics, General Hospital of Southern Theatre Command of PLA, Guangdong, China; Department of Orthopaedics, The First School of Clinical Medicine, Southern Medical University, Guangdong, China
| | - Hu Chen
- Department of Orthopaedics, General Hospital of Southern Theatre Command of PLA, Guangdong, China; Department of Orthopaedics, The First School of Clinical Medicine, Southern Medical University, Guangdong, China
| | - Huan-Wen Ding
- South China University of Technology School of Medicine, Guangdong, China; Department of Orthopaedics, Guangzhou No.1 People's Hospital, Guangzhou, China
| | - Guang-Wen Yu
- Department of Sports Medicine, Guangzhou Orthopaedic Hospital, Guangdong, China
| | - Qiu-Ju Miao
- South China University of Technology School of Medicine, Guangdong, China
| | - Jian-Jian Shen
- Department of Spinal Surgery, Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Guangdong, China
| | - Xian-Hua Huang
- Department of Orthopaedics, General Hospital of Southern Theatre Command of PLA, Guangdong, China
| | - Yong Tang
- Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Hong Xia
- Department of Orthopaedics, General Hospital of Southern Theatre Command of PLA, Guangdong, China
| | - Jian-Zhong Xu
- Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing, China.
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