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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">genort</journal-id><journal-title-group><journal-title xml:lang="ru">Гений ортопедии</journal-title><trans-title-group xml:lang="en"><trans-title>Genij Ortopedii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-4427</issn><issn pub-type="epub">2542-131X</issn><publisher><publisher-name>ЦЕНТР ИЛИЗАРОВА</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18019/1028-4427-2024-30-4-572-580</article-id><article-id custom-type="edn" pub-id-type="custom">IFUDSG</article-id><article-id custom-type="elpub" pub-id-type="custom">genort-3028</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Особенности регенерации пяточного сухожилия после его поперечной тенотомии с сохранением перитенона и его структур в эксперименте</article-title><trans-title-group xml:lang="en"><trans-title>Achilles tendon regeneration after experimental transverse tenotomy with preserved peritenon and the structures</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Власов</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vlasov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максим Валерьевич Власов — кандидат медицинских наук, заведующий отделением</p><p>Нижний Новгород</p></bio><bio xml:lang="en"><p>Maxim V. Vlasov — Candidate of Medical Sciences, Head of the Department</p><p>Nizhny Novgorod</p></bio><email xlink:type="simple">Footdoc@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>Широкова</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Shirokova</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Юрьевна Широкова — кандидат биологических наук, старший научный сотрудник</p><p>Нижний Новгород</p></bio><bio xml:lang="en"><p>Natal'ya Yu. Shirokova — Doctor of Biological Sciences, Senior Researcher</p><p>Nizhny Novgorod</p></bio><email xlink:type="simple">nush63@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>Мусихина</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Musikhina</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Владимировна Мусихина — кандидат медицинских наук, врач травматолог-ортопед</p><p>Нижний Новгород</p></bio><bio xml:lang="en"><p>Irina V. Musikhina — Candidate of Medical Sciences, orthopaedic surgeon, surgeon</p><p>Nizhny Novgorod</p></bio><email xlink:type="simple">i_musihina@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Приволжский исследовательский медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Privolzhsky Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>23</day><month>08</month><year>2024</year></pub-date><volume>30</volume><issue>4</issue><fpage>572</fpage><lpage>580</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Власов М.В., Широкова Н.Ю., Мусихина И.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Власов М.В., Широкова Н.Ю., Мусихина И.В.</copyright-holder><copyright-holder xml:lang="en">Vlasov M.V., Shirokova N.Y., Musikhina I.V.</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.ilizarov-journal.com/jour/article/view/3028">https://www.ilizarov-journal.com/jour/article/view/3028</self-uri><abstract><sec><title>Введение</title><p>Введение. Техника лечения врожденной косолапости по методу Ponseti является методом выбора, однако возможности репарации ахиллова сухожилия после поперечной тенотомии у пациентов детского возраста практически не изучены.</p><p>Цель работы — выявить особенности процессов репарации пяточного сухожилия при его поперечном пересечении с сохранением перитенона и его структур (сосудов, нервов) в эксперименте на растущих кроликах.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В экспериментальное исследование в качестве биомодели включены 20 кроликов породы Шиншилла обоего пола в возрасте 1,0–1,5 мес. с массой (1476,0 ± 114,3) г. Кроликов выводили из эксперимента по пять особей путем воздушной эмболии под местной анестезией на 15, 30, 60 и 90 сут. после операции.</p></sec><sec><title>Результаты</title><p>Результаты. К исходу 90 сут. зона дефекта сухожилия представлена, с одной стороны, небольшими участками плотной волокнистой рубцово изменённой ткани с малым количеством клеточных элементов фибробластов, а с другой, — среди пластов соединительной ткани обнаружены волокна сухожилия обычной архитектоники с взаимно параллельным волнистым расположением. Толщина коллагеновых волокон I порядка увеличивалась до (8,9 ± 1,32) мкм, при сравнении с показателем нормы — (9,2 ± 1,88) мкм — статистически значимой разницы не отмечено (p = 0,38). Толщина коллагеновых волокон II порядка к этому сроку увеличивалась до (28,1 ± 1,28) мкм, по отношению к нормативному показателю — (28,3 ± 2,23) мкм — статистически значимой разницы не определено (p = 0,64).</p></sec><sec><title>Обсуждение</title><p>Обсуждение. По данным литературы, с возрастом способность тенобласта синтезировать структурные белки и регуляторные биомолекулы после травмы снижаются, это приводит к фиброзному восстановлению сухожилия и формированию постоянного рубца. Выполненное нами исследование на растущих кроликах показало, что уже к 60 сут. эксперимента происходит восстановление органотипической структуры сухожилия в зоне его пересечения, а к исходу 90 сут. зона дефекта пяточного сухожилия представлена сухожильноподобной тканью.</p></sec><sec><title>Заключение</title><p>Заключение. Процессы репарации ахиллова сухожилия после его рассечения с сохранением перитенона и его сосудов и нервов протекают в оптимальных условиях, при которых в короткие сроки (уже через 3 мес. после вмешательства) образуется сухожильная ткань, максимально напоминающая первоначальную.</p></sec></abstract><trans-abstract xml:lang="en"><p>Introduction The Ponseti method is the first choice for congenital clubfoot with the possibilities of transverse tenotomy being underexplored in repair of the Achilles tendon in pediatric patients.</p><p>The objective was to identify specific features of the Achilles tendon repair after experimental transverse intersection and preserved peritenon, vessels and nerves of growing rabbits.</p><p>Material and methods The experimental study included 20 Chinchilla rabbits of both sexes aged 1.0–1.5 months used as a biomodel with a weight of 1476.0 ± 114.3 g. Rabbits were sacrificed in groups of five by air embolism under local anesthesia at 15, 30, 60 and 90 days of surgery.</p><p>Results The tendon defect zone was represented by small areas of dense fibrous scar tissue with some cellular fibroblasts, and tendon fibers of unremarkable architectonics arranged in a mutually parallel waves could be seen in the layers of connective tissue at 90 days. The thickness of the first-order collagen fibers increased to 8.9 ± 1.32 µm and comparison with the normal value of 9.2 ± 1.88 µm showed no statistically significant difference (p = 0.38). The thickness of the second-order collagen fibers increased to 28.1 ± 1.28 µm during the time, and comparison with the standard measurements of 28.3 ± 2.23 µm demonstrated no statistically significant difference (p = 0.64).</p><p>Discussion According to the literature, the ability of the tenoblast to synthesize structural proteins and regulatory biomolecules after injury decreases with age and leads to fibrous restoration of the tendon and formation of a permanent scar. Our study on growing rabbits showed that the organotypic structure of the experimental tendon restored at the intersection site at 60 days with the Achilles tendon defect being represented by the tendon-like tissue at 90 days.</p><p>Conclusion The Achilles tendon was shown to regenerate in optimal conditions after the dissection and preservation of the peritenon, vessels and nerves with tendon tissue being formed within a short time (3 months after the intervention) being identical to the original.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>врожденная косолапость</kwd><kwd>метод Ponseti</kwd><kwd>регенерация пяточного сухожилия</kwd><kwd>микроморфометрия</kwd><kwd>эксперимент</kwd><kwd>кролики</kwd></kwd-group><kwd-group xml:lang="en"><kwd>congenital clubfoot</kwd><kwd>Ponseti method</kwd><kwd>Achilles tendon regeneration</kwd><kwd>micromorphometry</kwd><kwd>experiment</kwd><kwd>rabbit</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">Kite JH. 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