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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">Traumatology and Orthopedics of Russia</journal-id><journal-title-group><journal-title xml:lang="en">Traumatology and Orthopedics of Russia</journal-title><trans-title-group xml:lang="ru"><trans-title>Травматология и ортопедия России</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2311-2905</issn><issn publication-format="electronic">2542-0933</issn><publisher><publisher-name xml:lang="en">Vreden National Medical Research Center of Traumatology and Orthopedics</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">17830</article-id><article-id pub-id-type="doi">10.17816/2311-2905-17830</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL STUDIES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="zh"><subject>Clinical studies</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">Surgical treatment of sacral chordomas: monocentric cohort analysis</article-title><trans-title-group xml:lang="ru"><trans-title>Хирургическое лечение хордом крестца: анализ моноцентровой когорты</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title/></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9892-6260</contrib-id><contrib-id contrib-id-type="spin">1514-5424</contrib-id><name-alternatives><name xml:lang="en"><surname>Naumov</surname><given-names>Denis G.</given-names></name><name xml:lang="ru"><surname>Наумов</surname><given-names>Денис Георгиевич</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>dgnaumov1@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9186-6461</contrib-id><contrib-id contrib-id-type="spin">4918-1046</contrib-id><name-alternatives><name xml:lang="en"><surname>Vishnevsky</surname><given-names>Arkadiy A.</given-names></name><name xml:lang="ru"><surname>Вишневский</surname><given-names>Аркадий Анатольевич</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>д-р мед. наук</p></bio><email>vichnevsky@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2734-0964</contrib-id><contrib-id contrib-id-type="spin">5754-3035</contrib-id><name-alternatives><name xml:lang="en"><surname>Babich</surname><given-names>Aleksandr I.</given-names></name><name xml:lang="ru"><surname>Бабич</surname><given-names>Александр Игоревич</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>д-р мед. наук</p></bio><email>ai.babich@spbniif.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2845-1703</contrib-id><contrib-id contrib-id-type="spin">2839-7241</contrib-id><name-alternatives><name xml:lang="en"><surname>Semenov</surname><given-names>Dmitry Yu.</given-names></name><name xml:lang="ru"><surname>Семенов</surname><given-names>Дмитрий Юрьевич</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор</p></bio><email>dy.semenov@spbniif.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4385-9643</contrib-id><contrib-id contrib-id-type="spin">3433-2624</contrib-id><name-alternatives><name xml:lang="en"><surname>Yablonsky</surname><given-names>Petr K.</given-names></name><name xml:lang="ru"><surname>Яблонский</surname><given-names>Петр Казимирович</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор</p></bio><email>piotr_yablonskii@mail.ru</email><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">St. Petersburg State Research Institute of Phthisiopulmonology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Санкт-Петербургский научно-исследовательский институт фтизиопульмонологии» Минздрава России</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">St. Petersburg State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный университет»</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">St. Petersburg State Research Institute of Phthisiopulmonology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Санкт-Петербургский научно-исследовательский институт фтизиопульмонологии» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">St. Petersburg State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный университет»</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-03-02" publication-format="electronic"><day>02</day><month>03</month><year>2026</year></pub-date><pub-date date-type="pub" iso-8601-date="2026-03-24" publication-format="electronic"><day>24</day><month>03</month><year>2026</year></pub-date><volume>32</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><issue-title xml:lang="zh"/><fpage>99</fpage><lpage>110</lpage><history><date date-type="received" iso-8601-date="2026-01-22"><day>22</day><month>01</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-02-16"><day>16</day><month>02</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Эко-Вектор</copyright-statement><copyright-statement xml:lang="zh">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><copyright-holder xml:lang="zh">Eco-Vector</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/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journal.rniito.org/jour/article/view/17830">https://journal.rniito.org/jour/article/view/17830</self-uri><abstract xml:lang="en"><p><bold>Background</bold><bold>.</bold> Surgical treatment of sacral chordoma remains one of the most challenging areas of medicine. Despite advances in oncology, en-bloc resection continues to represent the gold standard of treatment. The absence of relevant cohort studies in the domestic literature prompted us to systematize and present our own experience.</p> <p><bold>The aim of the study</bold><bold> </bold>— to analyze the short-term and long-term outcomes of surgical treatment of sacral chordomas using en-bloc resection.</p> <p><bold>Methods</bold><bold>.</bold> A monocentric cohort study evaluated results of en-bloc sacral resection in 9 patients with histologically verified sacral chordomas. Follow-up period was evaluated 2 yrs 4 mos ± 5 mos. Comprehensive analysis included surgical technique, health-related quality of life, post-op complication rates, recurrence-free survival, and local tumor control. Diagnostic and therapeutic delay duration, intraoperative blood loss, and operative time were assessed.</p> <p><bold>Results.<italic> </italic></bold>Follow-up duration: 2 yrs 4 mos ± 5 mos [1 yr 2 mos; 4 yrs 10 mos]. No significant differences identified between diagnostic and therapeutic delay durations. Intraoperative blood loss: 422±220 ml; operative duration: 3 hrs 11 mins ± 67 mins. All patients demonstrated significant reduction in low-back pain postoperatively (p = 0.003). Similar improvement trends in health-related quality of life according to Oswestry Disability Index (ODI) (p = 0.007) and SF-12 questionnaire (p = 0.003). Preoperative neurological deficit occurred in 33% of patients (Frankel D lower paraparesis); pelvic organ dysfunction noted in 77%. Postoperative complications (Clavien-Dindo III b) occurred in 4 cases. R0 resection margins confirmed in all cases. Overall and recurrence-free survival: 100%.</p> <p><bold>Conclusion.</bold> This cohort study demonstrates the efficacy and safety of en-bloc sacral chordoma resection. The procedure achieves 100% resectability, high local control rates, and improved postoperative quality of life.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность.</bold> Хирургическое лечение хордом крестца остается одной из наиболее трудных областей медицины. Несмотря на успехи онкологии, золотым стандартом лечения остается en-bloc резекция. Отсутствие когортных исследований в отечественной литературе по рассматриваемой проблеме побудило нас систематизировать и представить собственный опыт.</p> <p><bold>Цель исследования</bold> — провести анализ непосредственных и отдаленных результатов хирургического лечения хордом крестца в объеме en-bloc резекции.</p> <p><bold>Материал и методы.</bold> В рамках моноцентрового когортного исследования изучены результаты en-bloc резекции крестца у 9 пациентов с гистологически верифицированными хордомами крестца. Катамнез прослежен в сроки 2 г. 4 мес. ± 5 мес. В рамках комплексного анализа проанализированы особенности хирургической техники, оценена динамика качества жизни пациентов, частота послеоперационных осложнений, показатели безрецидивной выживаемости и частота достижения локального контроля опухоли. Изучены длительность диагностической и терапевтической паузы, объем операционной кровопотери и длительность вмешательства.</p> <p><bold>Результаты.</bold> Катамнез 2 г. 4 мес. ± 5 мес. [1 г. 2 мес.; 4 г. 10 мес.]. Значимых различий в длительности диагностической и терапевтической паузы не выявлено. Объем операционной кровопотери составил 422±220 мл, длительность вмешательства — 3 ч. 11 мин. ± 67 мин. В послеоперационном периоде у всех пациентов отмечено значимое снижение интенсивности вертеброгенного болевого синдрома (<italic>p</italic> = 0,003). Аналогичная динамика с тенденцией к улучшению качества жизни выявлена как в отношении индекса социальной дезадаптации ODI (<italic>p</italic> = 0,007), так и в отношении показателей опросника SF-12 (<italic>p</italic> = 0,003). Неврологические нарушения до операции отмечены в 33% случаев и характеризовались развитием нижнего парапареза типа D по Frankel, при этом нарушения функции тазовых органов различной степени выраженности зарегистрированы в 77% случаев. В послеоперационном периоде выявлены 4 случая осложнений III b класса по Clavien – Dindo. Край резекции R0 подтвержден во всех случаях. Общая и безрецидивная выживаемость в когорте составили 100%.</p> <p><bold>Заключение.</bold> В рамках когортного исследования доказана эффективность и безопасность выполнения en-bloc резекции хордом крестцовой локализации. Указанный объем операции обеспечивает 100% резектабельность, высокий уровень локального контроля и повышение качества жизни пациентов в послеоперационном периоде.</p></trans-abstract><trans-abstract xml:lang="zh"><p/></trans-abstract><kwd-group xml:lang="en"><kwd>chordoma</kwd><kwd>spine tumors</kwd><kwd>en-bloc resection</kwd><kwd>recurrence-free survival</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>хордома</kwd><kwd>опухоли позвоночника</kwd><kwd>en-bloc резекция</kwd><kwd>безрецидивная выживаемость</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Das P., Soni P., Jones J., Habboub G., Barnholtz-Sloan J.S., Recinos P.F. et al. 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