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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Pediatrician (St. Petersburg)</journal-id><journal-title-group><journal-title xml:lang="en">Pediatrician (St. Petersburg)</journal-title><trans-title-group xml:lang="ru"><trans-title>Педиатр</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2079-7850</issn><issn publication-format="electronic">2587-6252</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">15680</article-id><article-id pub-id-type="doi">10.17816/PED10345-50</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original studies</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Navigation template for vertebral pedicle passage in transpedicular screw fixation</article-title><trans-title-group xml:lang="ru"><trans-title>Применение навигационного шаблона для прохождения ножки позвонка при транспедикулярной фиксации</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kosulin</surname><given-names>Artem V.</given-names></name><name xml:lang="ru"><surname>Косулин</surname><given-names>Артем Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Assistant Professor, Department of Operative Surgery and Topographic Anatomy</p></bio><bio xml:lang="ru"><p>ассистент, кафедра оперативной хирургии и топографической анатомии</p></bio><email>hackenlad@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Elyakin</surname><given-names>Dmitriy V.</given-names></name><name xml:lang="ru"><surname>Елякин</surname><given-names>Дмитрий Викторович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Pediatric Surgeon, Surgical Department No. 2</p></bio><bio xml:lang="ru"><p>детский хирург, хирургическое отделение № 2</p></bio><email>dimaelkins@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lebedeva</surname><given-names>Kristina D.</given-names></name><name xml:lang="ru"><surname>Лебедева</surname><given-names>Кристина Дмитриевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Student, Department of Operative Surgery and Topographic Anatomy</p></bio><bio xml:lang="ru"><p>студентка, кафедра оперативной хирургии и топографической анатомии</p></bio><email>moon2807@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sukhomlinova</surname><given-names>Aleksandra E.</given-names></name><name xml:lang="ru"><surname>Сухомлинова</surname><given-names>Александра Евгеньевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Student, Department of Operative Surgery and Topographic Anatomy</p></bio><bio xml:lang="ru"><p>студентка, кафедра оперативной хирургии и топографической анатомии</p></bio><email>alexsashashmlmv@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kozlova</surname><given-names>Ekaterina A.</given-names></name><name xml:lang="ru"><surname>Козлова</surname><given-names>Екатерина Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Student, Department of Operative Surgery and Topographic Anatomy</p></bio><bio xml:lang="ru"><p>студентка, кафедра оперативной хирургии и топографической анатомии</p></bio><email>kea13doc@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Orekhova</surname><given-names>Anna E.</given-names></name><name xml:lang="ru"><surname>Орехова</surname><given-names>Анна Евгеньевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Student, Department of Operative Surgery and Topographic Anatomy</p></bio><bio xml:lang="ru"><p>студентка, кафедра оперативной хирургии и топографической анатомии</p></bio><email>myzikanya@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">St. Petersburg State Pediatric Medical University, Ministry of Healthcare of the Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный педиатрический медицинский университет» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-08-13" publication-format="electronic"><day>13</day><month>08</month><year>2019</year></pub-date><volume>10</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>45</fpage><lpage>50</lpage><history><date date-type="received" iso-8601-date="2019-08-13"><day>13</day><month>08</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-08-13"><day>13</day><month>08</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Kosulin A.V., Elyakin D.V., Lebedeva K.D., Sukhomlinova A.E., Kozlova E.A., Orekhova A.E.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Косулин А.В., Елякин Д.В., Лебедева К.Д., Сухомлинова А.Е., Козлова Е.А., Орехова А.Е.</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Kosulin A.V., Elyakin D.V., Lebedeva K.D., Sukhomlinova A.E., Kozlova E.A., Orekhova A.E.</copyright-holder><copyright-holder xml:lang="ru">Косулин А.В., Елякин Д.В., Лебедева К.Д., Сухомлинова А.Е., Козлова Е.А., Орехова А.Е.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/pediatr/article/view/15680">https://journals.eco-vector.com/pediatr/article/view/15680</self-uri><abstract xml:lang="en"><p>Transpedicular screw fixation is the most established means to stabilize the spine. Present study evaluates personalized navigation templates application for vertebral pedicle passage. Navigation templates were used for inserting 35 transpedicular screws in 5 patients with spinal deformity (age 2–16). Each patient underwent computed tomography preoperatively. Acquired data was processed into a virtual 3d-model of target zone. Life size virtual pedicular probes were placed onto transpedicular trajectories determined on multiplanar cross-sections of the model. Navigation template was created by modification and union of geometric primitives. Target zone model and navigation template were made with PLA by 3D-printer. In surgery the template was placed on skeletonized posterior surface of appropriate vertebrae. After confirmation of template stability trajectories were passed to a depth of 20 mm through guiding tubes by pedicular probe. Resulting channels were controlled with ball tip feeler, and the full depth trajectories were made by free hand technique. Postoperatively screws placement accuracy was assessed by plain X-rays in each patient. Two patients (16 screws) also underwent computed tomography. In these patients screw placement accuracy was assessed by system based on 2 mm breach increments. 15 screws (93. 7%) were fully contained within the pedicle (grade 0), 1 screw breached external cortex of the pedicle by 0. 8 mm (grade 1). Efficacy and safety of navigation template for transpedicular screws insertion was demonstrated.</p></abstract><trans-abstract xml:lang="ru"><p>В настоящее время наиболее распространенным способом хирургической стабилизации позвоночника является транспедикулярная фиксация. Настоящее исследование обобщает опыт использования индивидуальных навигационных шаблонов для прохождения ножки позвонка. Навигационные шаблоны были использованы для установки 35 транспедикулярных винтов у пяти пациентов в возрасте от 2 до 16 лет с деформациями позвоночника. Всем больным перед операцией выполняли компьютерную томографию. На основании полученных данных создавали виртуальную 3D-модель зоны интереса. Ориентируясь на плоскостные сечения модели, соответственно транспедикулярным трассам располагали модели шила, имеющие размерные характеристики используемого хирургического инструмента. Далее на основе геометрических примитивов создавали навигационный шаблон. Модель зоны интереса и навигационный шаблон распечатывали на 3D-принтере из полилактида (polylactide, PLA). В ходе операции навигационный шаблон помещали на скелетированные задние структуры соответствующих позвонков. После проверки стабильности положения шаблона через тубусы-направители шилом формировали транспедикулярные трассы на глубину 20 мм. Зондом проверяли целостность костных стенок полученного канала. Дальнейшее формирование трассы производили по методике «свободной руки» (free hand). После операции каждому пациенту для оценки стояния металлоконструкции осуществляли рентгенологический контроль. Двум больным (16 винтов) была выполнена компьютерная томография. При анализе послеоперационной компьютерной томографии отношение каждого винта к ножке позвонка оценивали по системе двухмиллиметровых инкрементов. Пятнадцать винтов (93,7 %) располагались внутрикостно (степень 0), один винт перфорировал наружную стенку ножки на 0,8 мм (степень 1). Таким образом навигационный шаблон является эффективным и безопасным средством позиционирования транспедикулярных винтов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>navigation template</kwd><kwd>3D-printing</kwd><kwd>transpedicular screw fixation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>навигационный шаблон</kwd><kwd>3D-печать</kwd><kwd>транспедикулярная фиксация</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Бурцев А.В., Павлова О.М., Рябых С.О., Губин А.В. Компьютерное 3D-моделирование с изготовлением индивидуальных лекал для навигирования введения винтов в шейном отделе позвоночника // Хирургия позвоночника. – 2018. – Т. 15. – № 2. – С. 33–38. [Burtsev AV, Pavlova OM, Ryabykh SO, Gubin AV. Computer 3D-modeling of patient-specific navigational template for cervical screw insertion. Spine surgery. 2018;15(2):33-38. 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