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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">2012</article-id><article-id pub-id-type="doi">10.17816/2311-2905-2012</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">Variants of Acetabular Deformity in Developmental Dysplasia of the Hip in Young Children</article-title><trans-title-group xml:lang="ru"><trans-title>Варианты деформации вертлужной впадины при дисплазии тазобедренных суставов у детей младшего возраста</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/0000-0003-4931-2817</contrib-id><name-alternatives><name xml:lang="en"><surname>Bortulev</surname><given-names>Pavel I.</given-names></name><name xml:lang="ru"><surname>Бортулёв</surname><given-names>Павел 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>Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>pavel.bortulev@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9865-2434</contrib-id><name-alternatives><name xml:lang="en"><surname>Baskaeva</surname><given-names>Tamila V.</given-names></name><name xml:lang="ru"><surname>Баскаева</surname><given-names>Тамила Владимировна</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>tamila-baskaeva@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4235-5048</contrib-id><name-alternatives><name xml:lang="en"><surname>Vissarionov</surname><given-names>Sergei V.</given-names></name><name xml:lang="ru"><surname>Виссарионов</surname><given-names>Сергей Валентинович</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>чл.-корр. РАН, д-р мед. наук, профессор</p></bio><email>vissarionovs@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9084-5634</contrib-id><name-alternatives><name xml:lang="en"><surname>Barsukov</surname><given-names>Dmitriy B.</given-names></name><name xml:lang="ru"><surname>Барсуков</surname><given-names>Дмитрий Борисович</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>dbbarsukov@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7026-1586</contrib-id><name-alternatives><name xml:lang="en"><surname>Pozdnikin</surname><given-names>Ivan Yu.</given-names></name><name xml:lang="ru"><surname>Поздникин</surname><given-names>Иван 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>Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>pozdnikin@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2534-9252</contrib-id><name-alternatives><name xml:lang="en"><surname>Poznovich</surname><given-names>Makhmud S.</given-names></name><name xml:lang="ru"><surname>Познович</surname><given-names>Махмуд Станиславович</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>poznovich@bk.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">H. Turner National Medical Research Center for Сhildren’s Orthopedics and Trauma Surgery</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской травматологии и ортопедии им. Г.И. Турнера» Минздрава России</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Mechnikov North-Western State Medical University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Северо-Западный государственный медицинский университет им. И.И. Мечникова» Минздрава России</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">H. Turner National Medical Research Center for Сhildren’s Orthopedics and Trauma Surgery</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской травматологии и ортопедии им. Г.И. Турнера» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2023-01-25" publication-format="electronic"><day>25</day><month>01</month><year>2023</year></pub-date><pub-date date-type="pub" iso-8601-date="2023-04-11" publication-format="electronic"><day>11</day><month>04</month><year>2023</year></pub-date><volume>29</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><issue-title xml:lang="zh"/><fpage>5</fpage><lpage>16</lpage><history><date date-type="received" iso-8601-date="2022-10-24"><day>24</day><month>10</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-12-09"><day>09</day><month>12</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Эко-Вектор</copyright-statement><copyright-statement xml:lang="zh">Copyright ©; 2023,</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</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/2012">https://journal.rniito.org/jour/article/view/2012</self-uri><abstract xml:lang="en"><p><bold><italic>Background.</italic></bold> The choice of pelvic reconstruction technique in children with developmental dysplasia of the hip (DDH) has been the subject of discussion for many years and is often determined by personal preferences of a surgeon rather than by X-ray anatomical state of the acetabulum. The variants of its anatomy structure have still not been reflected in the available scientific literature.</p> <p><bold><italic>Aim of the study </italic></bold>— to identify the most typical variants of acetabular deformation in children with varying severity of DDH, based on the X-ray anatomical analysis of structure of the acetabulum.</p> <p><bold><italic>Methods.</italic></bold> The study was based on the results of examination of 200 patients (200 hip joints) aged 2 to 4 years (3.1±0.45) with Tönnis grade II-IV DDH. All patients underwent conventional clinical and radiological examination. The latter consisted of hip radiography in several views and computed tomography. We took the values of acetabular index, the extent of acetabulum arch and the presence or the absence of bone oriel as criteria for determination of the most typical variants of acetabular deformation.</p> <p><bold><italic>Results. </italic></bold>X-ray analysis of anatomical structure of the acetabulum in young children with varying severity of DDH revealed 3 most common variants of acetabular deformity: 1 — moderate underdevelopment of the acetabulum arch (AI ≤ 35°), its shortening and the presence of bone oriel; 2 — pronounced underdevelopment of the acetabulum arch (AI &gt; 35°), its shortening and the presence of bone oriel; 3 — pronounced underdevelopment of the acetabulum arch (AI &gt; 35°), its sufficient length and the absence of bone oriel.</p> <p><bold><italic>Conclusion.</italic></bold> Suggested supplements to existing Tönnis DDH classification might become basic for choosing the surgical correction technique of the acetabulum in children with different severity of DDH.</p></abstract><trans-abstract xml:lang="ru"><p><bold><italic>Актуальность.</italic></bold> Выбор методики реконструкции таза у детей с дисплазией тазобедренного сустава остается предметом дискуссий на протяжении многих лет и часто зависит от личных предпочтений хирурга, а не от рентгеноанатомического состояния вертлужной впадины, варианты строения которой не отражены в научной литературе.</p> <p><bold><italic>Цель исследования </italic></bold>— на основании рентгеноанатомического анализа строения вертлужной впадины выявить наиболее распространенные варианты ее деформации у детей с различной степенью тяжести дисплазии тазобедренных суставов.</p> <p><bold><italic>Материал и методы. </italic></bold>Исследование основано на результатах обследования 200 пациентов (200 тазобедренных суставов) в возрасте от 2 до 4 лет (3,10±0,45) с дисплазией тазобедренных суставов II–IV ст. по классификации D. Tönnis. Всем пациентам проводили клиническое и лучевое исследование по общепринятой методике. Лучевое исследование заключалось в выполнении рентгенографии тазобедренных суставов в нескольких проекциях и компьютерной томографии. В качестве критериев для определения наиболее типичных вариантов деформации вертлужной впадины нами были выбраны значения ацетабулярного индекса, величина протяженности свода вертлужной впадины и наличие или отсутствие костного эркера.</p> <p><bold><italic>Результаты.</italic></bold> Рентгенометрический анализ состояния вертлужной впадины у детей младшего возраста с различной степенью тяжести дисплазии тазобедренных суставов показал наличие трех наиболее часто встречающихся вариантов деформации вертлужной впадины: вариант 1 — умеренно выраженное недоразвитие свода вертлужной впадины (АИ ≤ 35°), его укорочение и наличие костного эркера; вариант 2 — выраженное недоразвитие свода вертлужной впадины (АИ &gt; 35°), его укорочение и наличие костного эркера; вариант 3 — выраженное недоразвитие свода вертлужной впадины (АИ &gt; 35°), его достаточная протяженность и отсутствие костного эркера.</p> <p><bold><italic>Заключение. </italic></bold>Предложенные дополнения к имеющейся классификации дисплазии тазобедренных суставов, разработанной D. Tönnis, могут стать основой алгоритма выбора методики хирургической коррекции вертлужной впадины у детей с различной степенью тяжести дисплазии тазобедренного сустава.</p></trans-abstract><trans-abstract xml:lang="zh"><p/></trans-abstract><kwd-group xml:lang="en"><kwd>developmental dysplasia of the hip</kwd><kwd>DDH</kwd><kwd>children</kwd><kwd>acetabular deformity</kwd><kwd>pelvic osteotomy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>дисплазия тазобедренного сустава</kwd><kwd>дети</kwd><kwd>деформация вертлужной впадины</kwd><kwd>остеотомия таза</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Минздрав России</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Ministry of Health</institution></institution-wrap></funding-source><award-id>121031700122-6</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kotlarsky P., Haber R., Bialik V., Eidelman M. 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