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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">17838</article-id><article-id pub-id-type="doi">10.17816/2311-2905-17838</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">Different types of femoral components during total hip arthroplasty in patients with canal Dorr C morphology.</article-title><trans-title-group xml:lang="ru"><trans-title>Применение бедренных компонентов различной модификации при первичном ЭП ТБС у пациентов с морфологическим типом костномозгового канала Dorr C.</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/0000-0001-8392-5380</contrib-id><contrib-id contrib-id-type="scopus">55545052600</contrib-id><name-alternatives><name xml:lang="en"><surname>Tsed</surname><given-names>Alexander N.</given-names></name><name xml:lang="ru"><surname>Цед</surname><given-names>Александр Николаевич</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>travma1@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7264-7861</contrib-id><contrib-id contrib-id-type="scopus">57216856539</contrib-id><name-alternatives><name xml:lang="en"><surname>Mushtin</surname><given-names>Nikita E.</given-names></name><name xml:lang="ru"><surname>Муштин</surname><given-names>Никита Евгеньевич</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>mushtin.nikita@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4079-5541</contrib-id><contrib-id contrib-id-type="scopus">6602249299</contrib-id><name-alternatives><name xml:lang="en"><surname>Dulaev</surname><given-names>Alexander K.</given-names></name><name xml:lang="ru"><surname>Дулаев</surname><given-names>Александр Кайсинович</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>akdulaev@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1181-6545</contrib-id><name-alternatives><name xml:lang="en"><surname>Schmeljew</surname><given-names>Anton V.</given-names></name><name xml:lang="ru"><surname>Шмелев</surname><given-names>Антон Владимирович</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>schmeljew@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8961-2841</contrib-id><contrib-id contrib-id-type="spin">8553-2710</contrib-id><name-alternatives><name xml:lang="en"><surname>Gvenetadze</surname><given-names>Vadim</given-names></name><name xml:lang="ru"><surname>Гвенетадзе</surname><given-names>Вадим Валерьянович</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><email>vadimgven@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1160-3045</contrib-id><contrib-id contrib-id-type="spin">3969-1790</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhukovets</surname><given-names>Igor</given-names></name><name xml:lang="ru"><surname>Жуковец</surname><given-names>Игорь Юрьевич</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><email>torra1840@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Pavlov First Saint Petersburg State Medical University, Department of Traumatology and Orthopedics</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова» Минздрава России</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Pavlov First Saint Petersburg State Medical University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова» Минздрава России</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-08-26" publication-format="electronic"><day>26</day><month>08</month><year>2026</year></pub-date><volume>32</volume><issue>3</issue><issue-title xml:lang="ru"/><history><date date-type="received" iso-8601-date="2026-02-06"><day>06</day><month>02</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-06-11"><day>11</day><month>06</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; , Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; , Эко-Вектор</copyright-statement><copyright-statement xml:lang="zh">Copyright ©; , Eco-Vector</copyright-statement><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/17838">https://journal.rniito.org/jour/article/view/17838</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Selecting a femoral component for total hip arthroplasty in patients with Dorr type C is challenging. Traditionally, cemented femoral components have been used. High rate of complications has been observed.</p> <p><bold>Aim:</bold> Analyze the clinical and radiographic outcomes of using femoral components of various modifications in primary hip arthroplasty in patients with Dorr type C.</p> <p><bold>Methods. </bold>A single-center, retrospective, randomized study of 76 patients who underwent primary total hip arthroplasty with a Dorr C medullary canal classification type between 2018 and 2024. Patients were divided into 3 groups based on the type of femoral component fixation: Group 1 (n=23) – cemented, Group 2 (n=34) – cementless, and Group 3 (n=19) – revision femoral components. The following parameters were assessed: Barnett-Nordin index, canal-to-calcar ratio, intraoperative blood loss, operative time, OHS-48, UCLA, and the number and nature of complications.</p> <p><bold>Results.</bold> The average follow-up period was 44.3 ± 9.2 months. The intraoperative blood loss among all patients was 488.8 ml. There was no statistically significant difference in functional outcomes after hip arthroplasty between the cemented and uncemented stem groups. A statistically significant improvement (p=0.04) was observed among patients who received revision femoral components. ROC analyses were performed on two radiographic parameters—the morpho-cortical index (Banet-Nordin) and the CCR index (Dorr index)—that predict complications. Periprosthetic femoral fractures were a 6.5% occurrence of early complications. The highest intergroup rates of periprosthetic fractures were observed among patients with cemented stems (8.6%), while the lowest rates were observed among patients with revision stems (5.2%).</p> <p><bold>Conclusion.</bold> There is no statistically significant difference in long-term functional outcomes between cemented and uncemented femoral components after hip arthroplasty in patients with a Dorr C canal. With morphocortical index values ​​≤ 0.170 and CCR ≥ 0.920, revision stems demonstrate fewer complications and better functional outcomes in the early postoperative period.</p> <p> </p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность. </bold>Выбор бедренного компонента при эндопротезировании тазобедренного сустава при Dorr C типе вызывает сложности. Традиционно принято использовать бедренные компоненты цементной фиксации. Однако, в отдаленном периоде отмечаются большое количество осложнений.</p> <p><bold><italic>Цель исследования</italic></bold>. Проанализировать клинические и рентгенологические результаты применения бедренных компонентов различной модификации при первичном ЭП ТБС у пациентов с морфологическим типом костномозгового канала Dorr C.</p> <p><bold><italic>Материал и методы</italic></bold>. Одноцентровое ретроспективное рандомизированное исследование 76 пациентов, которым в период с 2018 по 2024 год было выполнено первичное эндопротезирование тазобедренного сустава при классификационном типе костномозгового канала Dorr C. Больные были разделены на 3 группы в зависимости от типа фиксации бедренного компонента: 1 (n=23) – цементная, 2 (n=34) – бесцементная, 3 (n=19) – ревизионные бедренные компоненты. Оцениваемые показатели: индекс Barnett-Nordin, canal-to-calcar ratio, объем интраоперационной кровопотери, длительность операции, OHS - 48, UCLA, количество и характер осложнений.</p> <p><bold><italic>Результаты</italic></bold>. Средние сроки наблюдения за пациентами составили 44,3 ± 9,2 месяца. Объем интраоперационной кровопотери среди всех пациентов составили 488,8 мл. Функциональные результаты после ЭП ТБС в группах с цементными и бесцементными ножками не имели статистического различия. Среди пациентов, которым имплантировались ревизионные бедренные компоненты отмечено статистически достоверное улучшение (p=0,04). Проведены ROC-анализы двух рентгенологических показателей – морфо-кортикального индекса (Banet-Nordin) и индекса CCR (индекс Dorr), при которых прогнозируются осложнения. В структуре ранних осложнений с частотой 6,5% встречались перипротезные переломы бедренной кости. Наибольшие межгрупповые показатели по перипротезным переломам отмечены среди пациентов с цементными ножками (8,6%), наименьшая с ревизионными (5,2%).</p> <p><bold><italic>Заключение</italic></bold>. Применение цементных и бесцементных бедренных компонентов не имеет статистически достоверной разницы в отдаленных функциональных результатах после эндопротезирования ТБС у пациентов с костномозговым каналом типа Dorr C. При значениях морфо-кортикального индекса ≤ 0,170, CCR ≥ 0,920, использование ревизионных ножек демонстрирует меньшее количество осложнений и лучшие функциональные результаты в раннем послеоперационном периоде.</p></trans-abstract><trans-abstract xml:lang="zh"><p/></trans-abstract><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1.	Шубняков И.И., Риахи А., Денисов А.О., Корыткин А.А., Алиев А.Г., Вебер Е.В., Муравьева Ю.В., Середа А.П., Тихилов Р.М. Основные тренды в эндопротезировании тазобедренного сустава на основании данных регистра артропластики НМИЦ ТО им. Р.Р. Вредена с 2007 по 2020 г. // Травматология и ортопедия России. - 2021. - Т. 27. - №3. - C. 119-142. doi: 10.21823/2311-2905-2021-27-3-119-142.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>2.	Günther KP, Deckert S, Lützner C, Lange T, Schmitt J, Postler A; Collaborators. 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