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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">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">1293</article-id><article-id pub-id-type="doi">10.21823/2311-2905-2019-25-3-25-33</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></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Long-Term Results of Total Hip Arthroplasty with RM Classic Cups</article-title><trans-title-group xml:lang="ru"><trans-title>Долгосрочные результаты тотальной артропластики тазобедренного сустава с использованием ацетабулярного компонента RM-classic</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Danilyak</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Даниляк</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), Chief of Orthopedic Department</p><p>Yaroslavl</p></bio><bio xml:lang="ru"><p>канд. мед. наук, заведующий ортопедическим отделением</p><p>Ярославль</p></bio><email>v-danilyak@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Klyuchevsky</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Ключевский</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), Assistant Professor at Faculty Of Traumatology and Orthopedics, Yaroslavl State Medical University; Orthopedic Surgeonof Orthopedic Department  </p><p>Yaroslavl</p></bio><bio xml:lang="ru"><p>канд. мед. наук, доцент кафедры травматологии и ортопедии, ФГБОУ ВО «Ярославский государственный медицинский университет» Минздрава России Ярославского государственного медицинского университета; ординатор ортопедического отделения</p><p>Ярославль</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Molodov</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Молодов</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), Resident Surgeon of Orthopedic Department</p><p>Yaroslavl</p></bio><bio xml:lang="ru"><p>канд. мед. наук, ординатор ортопедического отделения</p><p>Ярославль</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Goryunov</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Горюнов</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD Student, Faculty of Traumatology and Orthopedics</p><p>Yaroslavl</p></bio><bio xml:lang="ru"><p>аспирант кафедры травматологии и ортопедии</p><p>Ярославль</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Marchenkova</surname><given-names>K. V.</given-names></name><name xml:lang="ru"><surname>Марченкова</surname><given-names>К. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Resident Surgeon, Faculty of Traumatology and Orthopedics</p><p>Yaroslavl</p></bio><bio xml:lang="ru"><p>клинический ординатор кафедры травматологии и ортопедии</p><p>Ярославль</p></bio><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Yaroslavl Regional Clinical Hospital of War Veterans — International Center “Healthy Longevity”</institution></aff><aff><institution xml:lang="ru">ГБУЗ ЯО «Ярославский областной клинический госпиталь ветеранов войн – международный центр „Здоровое долголетие“»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Yaroslavl Regional Clinical Hospital of War Veterans – International Center “Healthy Longevity”</institution></aff><aff><institution xml:lang="ru">ГБУЗ ЯО «Ярославский областной клинический госпиталь ветеранов войн – международный центр „Здоровое долголетие“»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Yaroslavl State Medical University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Ярославский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-10-18" publication-format="electronic"><day>18</day><month>10</month><year>2019</year></pub-date><volume>25</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>25</fpage><lpage>33</lpage><history><date date-type="received" iso-8601-date="2019-10-15"><day>15</day><month>10</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-10-15"><day>15</day><month>10</month><year>2019</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journal.rniito.org/jour/article/view/1293">https://journal.rniito.org/jour/article/view/1293</self-uri><abstract xml:lang="en"><p><bold>Relevance.</bold> The RM Classic monoblock titanium-coated polyethylene cup is widely used in the total hip arthroplasty. However, so far in Russia there has been no analysis of follow-up over 10 years for a limited number of patients in a single hospital. <bold>The aim of the study</bold> was to evaluate the long-term outcomes of total hip replacement with RM Classic acetabular component. <bold>Materials and Methods.</bold> The outcomes of 328 total hip arthroplasties (289 patients operated in the period from 1997 to 2007) with RM Classic cups were evaluated in a monocentral retrospective clinical study. The average follow-up period was 14.4 years. Revision procedure due to aseptic loosening, polyethylene wear or osteolysis was considered as the end point of the study.<bold> Results</bold>. 9 revisions during the short and medium follow-up periods (up to 10 years) were associated with malpositioning of RM Classic components and errors in surgical technique. The indications for later revision THA (19 cases) were polyethylene wear and aseptic loosening. Only in one case they were combined with pelvic bone osteolysis with the formation of III a defect according to W.G. Paprosky classification. Within 15 years the Kaplan-Meier survivorship of RM Classic cup was 92.5%. There was a statistically significant difference of the survival curves in the ceramic-on-poly against metal-on-poly bearings: 94.9% and 79.4%, respectively. The average Harris Hip Score was 88.6. <bold>Conclusion</bold>. RM Classic uncemented monoblock cup has proven its high efficiency and survival in 15 years follow-up period and over.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность</bold>. Моноблочная полиэтиленовая чашка с титановым покрытием RM-classic нашла широкое применение в тотальной артропластике тазобедренного сустава. Однако до настоящего времени в России не проводился анализ ее использования у ограниченной серии пациентов в условиях одной клиники в сроки, превышающие 10 лет. <bold>Целью исследования</bold> явилось изучение долгосрочных результатов тотального эндопротезирования тазобедренного сустава с применением ацетабулярного компонента RM-classic. <bold>Материал и методы</bold>. Проведено одноцентровое ретроспективное клиническое исследование результатов эндопротезирования с применением чашки RM-classic у 289 пациентов (328 суставов), оперированных в период с 1997 по 2007 г. Средние сроки наблюдения составили 14,4 года. Точкой окончания наблюдения считалось ревизионное вмешательство по поводу развития асептической нестабильности, износа полиэтилена и остеолиза тазовой кости.<bold> Результаты</bold>. 9 ревизий в короткие и средние сроки (до 10 лет) были связаны с ошибками в ориентировании чашек и нарушениями хирургической техники их имплантации. Показаниями к более поздним ревизиям (19 наблюдений) стали разрушение полиэтилена и асептическое расшатывание, причем лишь в одном случае они сопровождались остеолизом тазовой кости с формированием дефекта IIIA по W.G. Paprosky. В срок 15 лет выживаемость RM-чашки, рассчитанная по методике Каплана — Мейера, составила 92,5%. Установлена статистически значимая разница выживаемости чашек в паре трения с керамическими и кобальт-хром-молибденовыми головками: 94,9% и 79,4% соответственно. Средняя функциональная оценка по шкале Harris равнялась 88,6 баллам. <bold>Заключение.</bold> Моноблочная полиэтиленовая чашка бесцементной фиксации RM-classic показала свою высокую эффективность и выживаемость в сроки 15 и более лет.</p></trans-abstract><kwd-group xml:lang="en"><kwd>total hip arthroplasty</kwd><kwd>uncemented monoblock titanium-coated polyethylene cup</kwd><kwd>long-term survivorship of the acetabular components</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>тотальное эндопротезирование тазобедренного сустава</kwd><kwd>моноблочная полиэтиленовая чашка с титановым покрытием для бесцементной фиксации</kwd><kwd>долгосрочная выживаемость ацетабулярного компонента</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">государственное бюджетное финансирование</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Mathys R. The RM cup: from the idea to the product. In: Bergmann E.G. 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