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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Bone and soft tissue sarcomas, tumors of the skin</journal-id><journal-title-group><journal-title xml:lang="en">Bone and soft tissue sarcomas, tumors of the skin</journal-title><trans-title-group xml:lang="ru"><trans-title>Саркомы костей, мягких тканей и опухоли кожи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2219-4614</issn><issn publication-format="electronic">2782-3687</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">745</article-id><article-id pub-id-type="doi">10.17650/2219-4614-2025-17-2-35-46</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>BONE SARCOMAS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>САРКОМЫ КОСТЕЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Distal tibia resection with endoprosthetic reconstruction in pediatric and adolescent patients with bone sarcomas</article-title><trans-title-group xml:lang="ru"><trans-title>Эндопротезирование дистального отдела большеберцовой кости и голеностопного сустава у пациентов детского и подросткового возраста при саркомах</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6313-6712</contrib-id><name-alternatives><name xml:lang="en"><surname>Bolshakov</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Большаков</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Nikolay Anatolyevich Bolshakov</p><p>1 Samory Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>Николай Анатольевич Большаков</p><p>117198 Москва, ул. Саморы Машела, 1</p></bio><email>bolshakovn@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8026-0977</contrib-id><name-alternatives><name xml:lang="en"><surname>Vorochay</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Ворочай</surname><given-names>А. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6848-8714</contrib-id><name-alternatives><name xml:lang="en"><surname>Konopleva</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Коноплева</surname><given-names>Е. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2210-6431</contrib-id><name-alternatives><name xml:lang="en"><surname>Artyomov</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Артемов</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-3533-7108</contrib-id><name-alternatives><name xml:lang="en"><surname>Bykova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Быкова</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3232-2322</contrib-id><name-alternatives><name xml:lang="en"><surname>Bydanov</surname><given-names>O. I.</given-names></name><name xml:lang="ru"><surname>Быданов</surname><given-names>О. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4451-3233</contrib-id><name-alternatives><name xml:lang="en"><surname>Grachev</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Грачев</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">D. Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-07-25" publication-format="electronic"><day>25</day><month>07</month><year>2025</year></pub-date><volume>17</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>35</fpage><lpage>46</lpage><history><date date-type="received" iso-8601-date="2025-07-24"><day>24</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-07-24"><day>24</day><month>07</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Bolshakov N.A., Vorochay A.M., Konopleva E.I., Artyomov A.Y., Bykova A.V., Bydanov O.I., Grachev N.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Большаков Н.А., Ворочай А.М., Коноплева Е.И., Артемов А.Ю., Быкова А.В., Быданов О.И., Грачев Н.С.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Bolshakov N.A., Vorochay A.M., Konopleva E.I., Artyomov A.Y., Bykova A.V., Bydanov O.I., Grachev N.S.</copyright-holder><copyright-holder xml:lang="ru">Большаков Н.А., Ворочай А.М., Коноплева Е.И., Артемов А.Ю., Быкова А.В., Быданов О.И., Грачев Н.С.</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/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://sarbon.abvpress.ru/jour/article/view/745">https://sarbon.abvpress.ru/jour/article/view/745</self-uri><abstract xml:lang="en"><p><bold>Introduction</bold>. The incidence of bone sarcomas in the distal tibia is about 5 %. Considering the features of this anatomical area, for a long time amputation was considered the method of choice for local control of the disease. Development of ankle joint endoprostheses in the 1970’s allowed to perform organ-saving surgeries. Data on the effectiveness of this technique in children and teenagers is very sparse and are usually presented as individual observations from large samples.<bold>Aim</bold>. To evaluate oncological and functional outcomes of endoprosthesis of the distal tibia and ankle joint with personalized implants in children and teenagers with bone sarcomas and to describe complications (per the Henderson classification) of this surgical intervention.Materials and methods. The study included 21 patients with ages varying between 8 and 17 years (median age 13.8  ±  3.2 years). All patients received combination treatment. Endoprosthesis of the distal tibia and ankle joint was performed. Functional results were evaluated after 12 months using the Musculoskeletal Tumor Society Score (MSTS) scale. Oncological outcomes were analyzed using the Kaplan–Meier method. All complications were classified per the Henderson system modified by the International Society of Limb Salvage (ISOLS).<bold>Results</bold>. In 13 (61.9 %) cases, resection of both tibia and fibula was performed, in all other cases fibula was saved. Median resection length was 15 (8–22.5) cm. Histological examination verified osteosarcoma in the majority of patients, ratio between this pathology and other malignant neoplasms was 2.5:1. Even-free survival in patients with osteosarcoma of the distal tibia was 53 ± 14 %, overall survival was 77 ± 15 %. Functional results were evaluated in 14 patients. Mean score per the MSTS scale was 72 (49–88) %. Complications were reported in 7 (33.3 %) patients.<bold>Conclusion</bold>. The data demonstrated effectiveness of endoprosthesis of the distal tibia and ankle joint in children and teenagers with bone sarcomas; good oncological and functional results were achieved.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение</bold>. Локализация сарком костей в дистальном отделе большеберцовой кости встречается примерно в 5 % случаев. С учетом особенностей данной анатомической зоны долгое время методом выбора локального контроля являлась ампутация. Появление эндопротезов голеностопного сустава в 70-х годах XX в. привело к более частому выполнению органосохраняющих операций. Данные об эффективности этого метода у пациентов детского и подросткового возраста почти отсутствуют и, как правило, представлены единичными наблюдениями из крупных выборок.<bold>Цель исследования</bold> – оценить онкологические и функциональные результаты эндопротезирования дистального отдела большеберцовой кости и голеностопного сустава индивидуальными имплантатами у детей и подростков с саркомами костей и описать осложнения (по классификации Henderson) данного хирургического вмешательства.<bold>Материалы и методы.</bold> В исследование включен 21 пациент в возрасте от 8 до 17 лет (медиана возраста – 13,8  ±  3,2 года). Все больные получали комплексное лечение. Проведено эндопротезирование дистального отдела большеберцовой кости и голеностопного сустава. Функциональные результаты оценивали через 12 мес по шкале Musculoskeletal Tumor Society Score (MSTS). Онкологические результаты проанализированы с помощью метода Каплана–Майера. Все осложнения классифицированы по системе Henderson, модифицированной Международным обществом по спасению конечностей (International Society of Limb Salvage, ISOLS).<bold>Результаты</bold>. В 13 (61,9 %) случаях проведена резекция обеих берцовых костей, в остальных случаях малоберцовая кость сохранена. Медиана длины резекции составила 15 (8–22,5) см. По результатам гистологического заключения у большинства пациентов верифицирована остеосаркома, соотношение этой патологии и других злокачественных новообразований составило 2,5:1. Бессобытийная выживаемость у пациентов с остеосаркомой дистального отдела большеберцовой кости оказалась равной 53 ± 14 %, общая выживаемость – 77 ± 15 %. Функциональные результаты оценены у 14 пациентов. Средний показатель по шкале MSTS составил 72 (49–88) %. Осложнения отмечены у 7 (33,3 %) пациентов.<bold>Заключение</bold>. Полученные данные продемонстрировали эффективность применения эндопротезирования дистального отдела большеберцовой кости и голеностопного сустава у детей и подростков с саркомами косей, достигнуты хорошие онкологические и функциональные результаты.</p></trans-abstract><kwd-group xml:lang="en"><kwd>malignant bone tumor</kwd><kwd>endoprosthetic reconstruction</kwd><kwd>ankle joint</kwd><kwd>bone sarcomas</kwd><kwd>pediatric patient</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>злокачественная опухоль кости</kwd><kwd>эндопротезирование</kwd><kwd>голеностопный сустав</kwd><kwd>саркомы костей</kwd><kwd>пациент детского возраста</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Raciborska A., Bilska K., Malesza I. et al. Distal tibial reconstruction in the management of primary bone tumors in children and adolescents. Foot Ankle Int 2021;42(11):1447–53. 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