A Novel Patient-Specific Drill Guide Template for Pedicle Screw Insertion into the Subaxial Cervical Spine Utilizing Stereolithographic Modelling: An Study
Study DesignCadaveric study.PurposeThe purpose of this study was to assess the accuracy and feasibility of cervical pedicle screw (CPS) insertion into the subaxial cervical spine placed using a patient-specific drill guide template constructed from a stereolithographic model.Overview of LiteratureCP...
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| Format: | Article |
| Language: | English |
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Korean Spine Society
2017-02-01
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| Series: | Asian Spine Journal |
| Subjects: | |
| Online Access: | http://www.asianspinejournal.org/upload/pdf/asj-11-4.pdf |
| _version_ | 1811302369210662912 |
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| author | Rafael Cruz Bundoc Giorgio De Guzman Delgado Samuel Arsenio Munoz Grozman |
| author_facet | Rafael Cruz Bundoc Giorgio De Guzman Delgado Samuel Arsenio Munoz Grozman |
| author_sort | Rafael Cruz Bundoc |
| collection | DOAJ |
| description | Study DesignCadaveric study.PurposeThe purpose of this study was to assess the accuracy and feasibility of cervical pedicle screw (CPS) insertion into the subaxial cervical spine placed using a patient-specific drill guide template constructed from a stereolithographic model.Overview of LiteratureCPS fixation is an invaluable tool for posterior cervical fixation because of its biomechanical advantages. The major drawback is its narrow corridor that allows very little clearance for neural and vascular injuries.MethodsFifty subaxial pedicles of the cervical vertebrae from five cadavers were scanned into thin slices using computed tomography (CT). Digital imaging and communications in medicine images of the cadaver spine were digitally processed and printed to scale as a three-dimensional (3D) model. Drill guide templates were manually moulded over the 3D-printed models incorporating pins inserted in the pedicles. The drill guide templates were used for precise placement of the drill holes in the pedicles of cadaveric specimens for pedicle screw fixation.ResultsThe instrumented cadaveric spines were subjected to CT to assess the accuracy of our pedicle placement by an external observer. Our patient-specific drill guide template had an accuracy of 94%.ConclusionsThe use of a patient-specific drill guide constructed using stereolithography improved the accuracy of CPS placement in a cadaveric model. |
| first_indexed | 2024-04-13T07:26:53Z |
| format | Article |
| id | doaj.art-567fd045223b48f68e9cf0d7071e0e8f |
| institution | Directory Open Access Journal |
| issn | 1976-1902 1976-7846 |
| language | English |
| last_indexed | 2024-04-13T07:26:53Z |
| publishDate | 2017-02-01 |
| publisher | Korean Spine Society |
| record_format | Article |
| series | Asian Spine Journal |
| spelling | doaj.art-567fd045223b48f68e9cf0d7071e0e8f2022-12-22T02:56:27ZengKorean Spine SocietyAsian Spine Journal1976-19021976-78462017-02-0111141410.4184/asj.2017.11.1.4234A Novel Patient-Specific Drill Guide Template for Pedicle Screw Insertion into the Subaxial Cervical Spine Utilizing Stereolithographic Modelling: An StudyRafael Cruz Bundoc0Giorgio De Guzman Delgado1Samuel Arsenio Munoz Grozman2Section of Spine Surgery, Department of Orthopedics, Philippine General Hospital, University of the Philippines, Manila, Philippines.Department of Orthopedics, Philippine General Hospital, University of the Philippines, Manila, Philippines.Section of Spine Surgery, Department of Orthopedics, Philippine General Hospital, University of the Philippines, Manila, Philippines.Study DesignCadaveric study.PurposeThe purpose of this study was to assess the accuracy and feasibility of cervical pedicle screw (CPS) insertion into the subaxial cervical spine placed using a patient-specific drill guide template constructed from a stereolithographic model.Overview of LiteratureCPS fixation is an invaluable tool for posterior cervical fixation because of its biomechanical advantages. The major drawback is its narrow corridor that allows very little clearance for neural and vascular injuries.MethodsFifty subaxial pedicles of the cervical vertebrae from five cadavers were scanned into thin slices using computed tomography (CT). Digital imaging and communications in medicine images of the cadaver spine were digitally processed and printed to scale as a three-dimensional (3D) model. Drill guide templates were manually moulded over the 3D-printed models incorporating pins inserted in the pedicles. The drill guide templates were used for precise placement of the drill holes in the pedicles of cadaveric specimens for pedicle screw fixation.ResultsThe instrumented cadaveric spines were subjected to CT to assess the accuracy of our pedicle placement by an external observer. Our patient-specific drill guide template had an accuracy of 94%.ConclusionsThe use of a patient-specific drill guide constructed using stereolithography improved the accuracy of CPS placement in a cadaveric model.http://www.asianspinejournal.org/upload/pdf/asj-11-4.pdfSubaxial cervical spineCervical pedicle screw fixationThree-dimensional printingStereolithographyPatient-specific surgical template |
| spellingShingle | Rafael Cruz Bundoc Giorgio De Guzman Delgado Samuel Arsenio Munoz Grozman A Novel Patient-Specific Drill Guide Template for Pedicle Screw Insertion into the Subaxial Cervical Spine Utilizing Stereolithographic Modelling: An Study Asian Spine Journal Subaxial cervical spine Cervical pedicle screw fixation Three-dimensional printing Stereolithography Patient-specific surgical template |
| title | A Novel Patient-Specific Drill Guide Template for Pedicle Screw Insertion into the Subaxial Cervical Spine Utilizing Stereolithographic Modelling: An Study |
| title_full | A Novel Patient-Specific Drill Guide Template for Pedicle Screw Insertion into the Subaxial Cervical Spine Utilizing Stereolithographic Modelling: An Study |
| title_fullStr | A Novel Patient-Specific Drill Guide Template for Pedicle Screw Insertion into the Subaxial Cervical Spine Utilizing Stereolithographic Modelling: An Study |
| title_full_unstemmed | A Novel Patient-Specific Drill Guide Template for Pedicle Screw Insertion into the Subaxial Cervical Spine Utilizing Stereolithographic Modelling: An Study |
| title_short | A Novel Patient-Specific Drill Guide Template for Pedicle Screw Insertion into the Subaxial Cervical Spine Utilizing Stereolithographic Modelling: An Study |
| title_sort | novel patient specific drill guide template for pedicle screw insertion into the subaxial cervical spine utilizing stereolithographic modelling an study |
| topic | Subaxial cervical spine Cervical pedicle screw fixation Three-dimensional printing Stereolithography Patient-specific surgical template |
| url | http://www.asianspinejournal.org/upload/pdf/asj-11-4.pdf |
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