Deviation analysis of C2 translaminar screw placement assisted by a novel rapid prototyping drill template: a cadaveric study

Hu, Yong; Yuan, Zhenshan; Spiker, W. Ryan; Albert, Todd J.; Dong, Weixin; Xie, Haibo; Yuan, Jing; Wang, Chengtao

doi:10.1007/s00586-013-2993-0

Cited by 45 publications

(37 citation statements)

References 31 publications

(30 reference statements)

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“…Another solution is the use of image-based navigation templates. 3,6,7,13 One of the advantages of such templates is that the relative position between the template and the intended vertebra remains the same during the surgical procedure. However, these guides have not been used during revision surgery.…”

Section: Discussionmentioning

confidence: 99%

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Utility of a custom screw insertion guide and a full-scale, color-coded 3D plaster model for guiding safe surgical exposure and screw insertion during spine revision surgery

Otsuki¹,

Takemoto²,

Fujibayashi³

et al. 2016

SPI

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Several articles have described the use of screw insertion guides during primary spine surgery; however, the use of such a guide during revision surgeries has not been described. The purpose of this study is to describe the utility of a custom screw insertion (CSI) guide assembled using a novel method and a full-scale, color-coded 3D plaster (FCTP) model for safe and accurate revision surgery. The authors applied the CSI guide and the FCTP model in 3 cases. In the first case, a patient with multiple failed cervical spine surgeries underwent occipitocervicothoracic fusion. After a successful result for this patient, the authors applied the CSI guide in 2 other patients who underwent revision lumbar fusion surgeries to confirm the accuracy and the efficacy of the CSI guides in such cases. The models and guides were fabricated using rapid prototyping technology. The effectiveness of these methods was examined. The FCTP model was designed using CT data. During model assembly, implants inserted during previous surgery were removed virtually, and for the cervical spine, vertebral arteries were colored red for planning. The CSI guide was designed with 5 or 6 arms to fit the bone surface precisely after removing artifacts. Surgery was performed by referring to the FCTP model. Because the actual structure of the bone surface was almost identical to that of the FCTP model, surgical exposure around the complex bone shape proceeded smoothly. The CSI guides were positioned accurately to aid the successful insertion of a pedicle screw into the C-2 vertebra in the case of cervical revision surgery, and 4 pedicle screws for lumbar vertebrae in the 2 other patients. Postoperative CT scans showed that all screw positions closely matched those predicted during the preoperative planning. In conclusion, the FCTP models and the novel CSI guides were effective for safe and accurate revision surgery of the spine.

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Section: Discussionmentioning

confidence: 99%

“…3,6,7,13 However, no report has described the use of such a guide during revision surgery. The reported guides used in primary surgery have a large contact area designed by making a conventional subtraction cast model of the shape of the lamina and/or the spinous process from the initial bulk structure (Fig.…”

mentioning

confidence: 99%

Utility of a custom screw insertion guide and a full-scale, color-coded 3D plaster model for guiding safe surgical exposure and screw insertion during spine revision surgery

Otsuki¹,

Takemoto²,

Fujibayashi³

et al. 2016

SPI

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“…Burtsev et al Computer 3D-modeling of patient-specific navigational template for cervical screw insertion ограничивать ее широкое распро-странение. При этом в настоящее вре-мя способ является наиболее точным для корректного введения винтов [4,6,7,10]. Немногочисленные публикации, посвященные этой проблеме, описы-вают различные варианты изготовле-ния лекал.…”

Section: рисunclassified

“…Немногочисленные публикации, посвященные этой проблеме, описы-вают различные варианты изготовле-ния лекал. Большинство этих работ посвящено навигированию в шей-ном отделе позвоночника, что сви-детельствует о наибольшей сложно-сти при введении винтов в этой обла-сти [4][5][6][7][8][9][13][14][15]. Описаны различные варианты методик от одного [4,7] до трех (для шила, сверла, винта) лекал [14,15].…”

Section: рисunclassified

“…Однако мобильность шейного отде-ла не позволяет добиться абсолютно точного позиционирования винтов интраоперационно, что не исклю-чает полностью риска мальпозиций. В последнее время в зарубежных источ-никах все большее внимание уделяется 3D-моделированию и изготовлению лекал для задания траектории введения винтов [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. При этом в отечествен-ной литературе подобного рода публи-кации отсутствуют.…”

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Computer 3d-Modeling of Patient-Specific Navigational Template for Cervical Screw Insertion

Burtsev¹,

Pavlova²,

Рябых³

et al. 2018

Hir. pozvonoč.

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Tumors and inflammatory diseases of the spine Опухоли и воспалительные заболевания позвоночника 33Hirurgia Pozvonochnika (spine surgery) 2018;15(2):33-38 ХИРУРГИЯ ПОЗВОНОЧНИКА 2018. Т. 15. № 2. С. 33-38 © А.В. Бурцев и др., 2018 © A.V. Burtsev et al., 2018 Computer 3D-modeling of patient-specific Objective. To prove the effectiveness of 3D computer modeling and printing of patient-specific templates for cervical spine screw fixation. Materials and Methods.Based on the MSCT data of three patients, 3D models of cervical vertebrae and guiding templates were produced. The screws were inserted transpedicularly into 3D-printed models of C2-C7 vertebrae and C1 lateral masses using standard cervical instrumentation. This technology was then clinically tested in a patient with C2 tumor, in whom posterior stabilization of C1-C3 vertebrae was performed using guiding templates. In the postoperative period, MSCT was performed to monitor the position of screws.Results. When implanting screws into 3D-models, technical difficulties were not revealed. After insertion of screws, a visual assessment of the 3D vertebra model was made. Malpositions in models were not detected. Based on the proven technique, a clinical approbation was performed in a patient with normal cervical spine pattern. MSCT study revealed the deviation of screws relative to the planned trajectory by no more than 2 mm, with no malpositions. Conclusion. The first domestic description of

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Recent Progress on 3D‐Printed Polylactic Acid and Its Applications in Bone Repair

Chen

Wang

et al. 2019

Adv Eng Mater

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3D printing is an additive manufacturing (AM) technology that has developed rapidly in the past decades due to its advantages, such as freedom of design, mass customization, waste minimization, and the ability to manufacture complex structures, as well as fast prototyping. Various materials are used in 3D printing, including metals, polymers, ceramics, concrete, and their composites. The polymer's easy processing makes it stands out among many materials. As a thermoplastic polymer, polylactic acid (PLA) received more attention as an effective biomedical material due to its proven biodegradation and biocompatibility. Herein, the development of 3D-printing technology is summarized and various applications of 3D-printed PLA and their composites in orthopedics are introduced. Furthermore, the current limitations and future opportunities in 3D printing are also discussed to help guide the 3D-printing development and improve 3D-printing strategies in orthopedic.

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Deviation analysis of C2 translaminar screw placement assisted by a novel rapid prototyping drill template: a cadaveric study

Abstract: The small deviations seen are likely due to human error in the form of small variations in the surgical technique and use of software to design the prototype. This technology improves the safety profile of this fixation technique and should be further studied in clinical applications.

Cited by 45 publications

References 31 publications

Utility of a custom screw insertion guide and a full-scale, color-coded 3D plaster model for guiding safe surgical exposure and screw insertion during spine revision surgery

Utility of a custom screw insertion guide and a full-scale, color-coded 3D plaster model for guiding safe surgical exposure and screw insertion during spine revision surgery

Computer 3d-Modeling of Patient-Specific Navigational Template for Cervical Screw Insertion

Recent Progress on 3D‐Printed Polylactic Acid and Its Applications in Bone Repair

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