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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2020-5.6.34</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-2525</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL RESEARCHES</subject></subj-group></article-categories><title-group><article-title>Изменение формы дурального мешка на модели ламинэктомии на разных сроках репарационного процесса в эксперименте</article-title><trans-title-group xml:lang="en"><trans-title>Change of the Shape of the Dural Sac in the Laminectomy Model at Different Stages of the Reparation in the Experiment</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1040-284X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гольдберг</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Goldberg</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, ведущий научный сотрудник лаборатории клеточных технологий и регенеративной медицины</p><p>664003, г. Иркутск, ул. Борцов Революции, 1, Россия</p></bio><bio xml:lang="en"><p>Cand. Sc. (Med.), Leading Research Officer at the Laboratory of Cell Technologies and Regenerative Medicine</p><p>Bortsov Revolyutsii str. 1, Irkutsk 664003, Russian Federation </p></bio><email xlink:type="simple">goldberg.ol@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4032-8575</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Животенко</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhivotenko</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник научно-клинического отдела нейрохирургии</p><p>664003, г. Иркутск, ул. Борцов Революции, 1, Россия</p></bio><bio xml:lang="en"><p>Bortsov Revolyutsii str. 1, Irkutsk 664003, Russian Federation </p></bio><email xlink:type="simple">sivotenko1976@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самойлова</surname><given-names>Л. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Samoilova</surname><given-names>L. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник лаборатории клеточной патофизиологии и биохимии, ФГБНУ «Иркутский научный центр хирургиии травматологии», e-mail:</p><p>664003, г. Иркутск, ул. Борцов Революции, 1, Россия</p></bio><bio xml:lang="en"><p>Bortsov Revolyutsii str. 1, Irkutsk 664003, Russian Federation </p></bio><email xlink:type="simple">iscst@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9008-6383</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сороковиков</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sorokovikov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор, директор; заведующий кафедрой травматологии, ортопедии и нейрохирургии</p><p>664003, г. Иркутск, ул. Борцов Революции, 1, Россия</p><p>664049, г. Иркутск, Юбилейный, 100, Россия</p></bio><bio xml:lang="en"><p>Dr. Sc. (Med.), Professor, Director; Head of the Department of Traumatology, Orthopedics and Neurosurgery</p><p>Bortsov Revolyutsii str. 1, Irkutsk 664003, Russian Federation </p><p>Yubileyniy 100, Irkutsk 664049, Russian Federation </p></bio><email xlink:type="simple">iscst@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3980-050X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шурыгина</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shurygina</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор РАН, заместитель директора по научной работе</p><p>664003, г. Иркутск, ул. Борцов Революции, 1, Россия</p></bio><bio xml:lang="en"><p>Bortsov Revolyutsii str. 1, Irkutsk 664003, Russian Federation </p></bio><email xlink:type="simple">irinashurygina@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Иркутский научный центр хирургии и травматологии»</institution></aff><aff xml:lang="en"><institution>Irkutsk Scientific Centre of Surgery and Traumatology</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБНУ «Иркутский научный центр хирургии и травматологии»;&#13;
Иркутская государственная медицинская академия последипломного образования – филиал ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Минздрава России</institution></aff><aff xml:lang="en"><institution>Irkutsk Scientific Centre of Surgery and Traumatology;&#13;
Irkutsk State Medical Academy of Postgraduate Education – Branch Campus of the Russian Medical Academy of Continuing Professional Education</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>19</day><month>01</month><year>2021</year></pub-date><volume>5</volume><issue>6</issue><fpage>259</fpage><lpage>264</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гольдберг О.А., Животенко А.П., Самойлова Л.Г., Сороковиков В.А., Шурыгина И.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Гольдберг О.А., Животенко А.П., Самойлова Л.Г., Сороковиков В.А., Шурыгина И.А.</copyright-holder><copyright-holder xml:lang="en">Goldberg O.A., Zhivotenko A.P., Samoilova L.G., Sorokovikov V.A., Shurygina I.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.actabiomedica.ru/jour/article/view/2525">https://www.actabiomedica.ru/jour/article/view/2525</self-uri><abstract><p>Эпидуральный фиброз – это динамический патологический процесс, развивающийся и прогрессирующий во времени и являющийся полиэтиологичным и мультифакторным осложнением в послеоперационном периоде при операциях на позвоночнике.</p><sec><title>Цель исследования</title><p>Цель исследования. Изучить репаративный процесс и формирования эпидурального  фиброза и его влияние на форму дурального мешка в зоне ламинэктомии на разных  сроках заживления раны.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Для оценки динамики формирования эпидурального фиброза и  вовлечения в данный процесс твёрдой мозговой оболочки 35 крысам-самцам породы  Wistar в возрасте 4–5 месяцев выполнена ламинэктомия на уровне позвонка LVI.  Животных разделили на 5 групп в соответствии со сроками выведения из эксперимента – на 3-и, 7-е, 14-е, 21-е и 28-е сутки. Гистологический материал изучали при окраске гематоксилином и эозином. Для оценки деформации дурального мешка оценивалось отношение поперечника к длиннику канала на гистологических препаратах в зоне ламинэктомии: данные измерения проводили у группы интактных животных на уровне позвонка LVI (n = 7).</p></sec><sec><title>Результаты</title><p>Результаты. В процессе исследования наблюдали изменение соотношения размеров дурального мешка. В сроки от 3 до 14 суток прогрессивно снижается передне-задний размер дурального мешка, параллельно нарастает поперечный размер, что ведёт к изменению его формы. При последующем наблюдении происходит некоторая коррекция  формы. Возможно, изменение формы дурального мешка в сроки до 14 суток обусловлено отёком, плазматическим пропитыванием тканей, а также ростом  соединительной ткани. Последующее снижение отёка и перестройка вновь  сформированной соединительной ткани ведут к коррекции формы дурального мешка.</p></sec><sec><title>Заключение</title><p>Заключение. В работе оценена динамика морфологических изменений в зоне  формирования эпидурального фиброза при ламинэктомии в эксперименте. Установлена  динамика изменения просвета дурального мешка. Отмечено раннее вовлечение в патологический процесс твёрдой мозговой оболочки, её заинтересованность в течение  всего срока наблюдения. Также на гистологических препаратах отмечается вовлечение  нервных волокон конского хвоста в патологический процесс с ранних сроков после  оперативного вмешательства: вакуолизация и деструкция нервных волокон, адгезия волокон между собой и к твёрдой мозговой оболочке, а также активация эндотелиоцитов в vasa nervorum.</p></sec></abstract><trans-abstract xml:lang="en"><p>Epidural fibrosis is a dynamic pathological process that develops and progresses over time and is a polyetiological and multifactorial complication in the postoperative period during spinal surgery.</p><sec><title>Aim of the study</title><p>Aim of the study. To study the reparative process and the formation of epidural fibrosis and its effect on the shape of the dural sac in the area of laminectomy at different periods of wound healing.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. To assess the dynamics of the formation of epidural fibrosis and the involvement of the dura mater in this process, laminectomy was performed at the level of the LVI vertebra in 35 male Wistar rats at the age of 4–5 months. The animals were divided into 5 periods of withdrawal from the experiment on days 3, 7, 14, 21, and 28. The histological material was studied by staining with hematoxylin and eosin. To assess the deformation of the dural sac, the ratio of the diameter to the length of the canal was assessed on histological preparations in the laminectomy zone, and these measurements were carried out in a group of intact animals at the level of the LVI vertebra (n = 7). </p></sec><sec><title>Results</title><p>Results. During the observation process, a change in the ratio of the sizes of the dural sac has been observed. In the period from days 3 to 14, the anterior-posterior size of the dural sac progressively decreases, in parallel, the transverse size increases, which leads to a change in its shape. On follow-up, some form correction occurs. It is possible that the change in the shape of the dural sac in terms of up to 14 days is due to edema, plasma saturation of tissues, as well as the growth of connective tissue. The subsequent decrease in edema and the restructuring of the newly formed connective tissue leads to a correction of the shape of the dural sac.</p></sec><sec><title>Conclusion</title><p>Conclusion. In the work, the dynamics of morphological changes in the zone of formation of epidural fibrosis during laminectomy in the experiment was assessed. The dynamics of changes in the lumen of the dural sac was established. The early involvement of the dura mater in the pathological process, its interest during the entire observation period was noted. Also, histological preparations show the involvement of the nerve fibers of the cauda equina in the pathological process from the early stages after surgery: vacuolization and destruction of nerve fibers, adhesion of fibers to each other and to the dura mater, as well as activation of endotheliocytes in the vasa nervorum. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>ламинэктомия</kwd><kwd>морфометрия</kwd><kwd>дуральный мешок</kwd><kwd>эпидуральный фиброз</kwd><kwd>твёрдая мозговая оболочка</kwd><kwd>репарационный процесс</kwd><kwd>эксперимент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>laminectomy</kwd><kwd>morphometry</kwd><kwd>dural sac</kwd><kwd>epidural fibrosis</kwd><kwd>dura mater</kwd><kwd>reparation</kwd><kwd>experiment</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Животенко А.П., Шурыгина И.А., Гольдберг О.А., Кошкарева З.В. 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