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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">376</article-id><article-id pub-id-type="doi">10.21823/2311-2905-2013--4-42-51</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Theoretical and experimental studies</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Теоретические и экспериментальные исследования</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="zh"><subject>Theoretical and experimental studies</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Experimental substantiation of acetabular component impaction with uncoverage in arthroplasty of patients with severe hip dysplasia</article-title><trans-title-group xml:lang="ru"><trans-title>Экспериментальное обоснование установки ацетабулярного компонента с недопокрытием при эндопротезировании пациентов с тяжелой степенью дисплазии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tikhilov</surname><given-names>R. M.</given-names></name><name xml:lang="ru"><surname>Тихилов</surname><given-names>Р. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@rniito.org</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shubnyakov</surname><given-names>I. I.</given-names></name><name xml:lang="ru"><surname>Шубняков</surname><given-names>И. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>shubnyakov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mazurenko</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Мазуренко</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>amazourenko.home@inbox.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mitryaikin</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Митряйкин</surname><given-names>В. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>kati_mit@mail.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sachenkov</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Саченков</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>4works@bk.ru</email><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuzin</surname><given-names>A. K.</given-names></name><name xml:lang="ru"><surname>Кузин</surname><given-names>А. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>kuzin_aleksei@mail.ru</email><xref ref-type="aff" rid="aff6"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Denisov</surname><given-names>A. O.</given-names></name><name xml:lang="ru"><surname>Денисов</surname><given-names>А. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>med-03@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pliev</surname><given-names>D. G.</given-names></name><name xml:lang="ru"><surname>Плиев</surname><given-names>Д. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>plievd@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Boyarov</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Бояров</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>bojaroffaa@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kovalenko</surname><given-names>A. N.</given-names></name><name xml:lang="ru"><surname>Коваленко</surname><given-names>А. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ankovalenko@rniito.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Vreden Russian Research Institute of Traumatology and Orthopedics</institution></aff><aff><institution xml:lang="ru">ФГБУ «Российский научно-исследовательский институт травматологии и ортопедии им. Р.Р. Вредена» Минздрава России</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">ГБОУ ВПО «Северо-Западный государственный медицинский университет им. И.И. Мечникова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Federal Centre of Traumatology, Orthopedics and Arthroplasty</institution></aff><aff><institution xml:lang="ru">ФГБУ «Федеральный центр травматологии, ортопедии и эндопротезирования»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">A.N. Tupolev Kazan National Research Technical University</institution></aff><aff><institution xml:lang="ru">Казанский национальный исследовательский технический университет им. А.Н. Туполева</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">N.I. Lobachevsky Institute of Mathematics and Mechanics of Kazan (Volga region) Federal University</institution></aff><aff><institution xml:lang="ru">Институт математики и механики им Н.И. Лобачевского Казанского (Приволжского) федерального университета</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Institute Of Metallurgy, Mechanical Engineering and Transport</institution></aff><aff><institution xml:lang="ru">Институт металлургии, машиностроения и транспорта Санкт-Петербургского государственного политехнического университета</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-12-30" publication-format="electronic"><day>30</day><month>12</month><year>2013</year></pub-date><volume>19</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>42</fpage><lpage>51</lpage><history><date date-type="received" iso-8601-date="2016-11-01"><day>01</day><month>11</month><year>2016</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/376">https://journal.rniito.org/jour/article/view/376</self-uri><abstract xml:lang="en"><p>Purpose. Estimation of critical value of acetabular component uncoverage enabling its implantation without an additional support. Methods. A comparative analysis of an original method for intraoperative measurement of uncoverage space of acetabular component based on the measurement of the depth of uncovered sector with X-ray control by the same technique was carried out. Mathematical computer modeling based on the finite element techniqueand the mechanical experiment were performed. Critical values of uncoverage enabling safe primary fixation of acetabular component were estimated in designed models. Results. High rate of coincidence of direct intraoperative and postoperative measurements by radiograms was obtained, testifying to the possibility of application of this technique of uncoverage estimation at the stage of preoperative X-ray planning in patients with different degree of dysplasia. Using the finite element technique and the mechanical experiment on pelvis models, a possibility of mounting anacetabular component with moderate uncoverage within 25% without screws and with significant uncoverage to 35% with additional two screws fixation was demonstrated.</p></abstract><trans-abstract xml:lang="ru"><p>Цель работы - определение критической величины недопокрытия ацетабулярного компонента, при которой возможна его имплантация без использования дополнительной опоры. Методы. Проведен сравнительный анализ оригинального способа интраоперационного измерения площади недопокрытия вертлужного компонента, основанного на измерении глубины непокрытого сектора, с рентгеновской оценкой тем же способом. Осуществлены математическое компьютерное моделирование на основе метода конечных элементов и механический эксперимент. В разработанных моделях определялись критические величины недопокрытия, при которых возможно обеспечение надежной первичной фиксации ацетабулярного компонента Результаты. Выявлена высокая степень совпадения прямых интраоперационных и послеоперационных измерений по рентгенограммам, что свидетельствует о возможности применения данного метода оценки недопокрытия на этапе предоперационного рентгеновского планирования у пациентов с различной степенью дисплазии. С помощью метода конечных элементов и механического эксперимента на моделях таза показана возможность установки ацетабулярного компонента с умеренным недопокрытием в пределах 25% без винтов и со значительным недопокрытием до 35% с дополнительной фиксацией двумя винтами.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дисплазия</kwd><kwd>эндопротезирование тазобедренного сустав</kwd><kwd>недопокрытие ацетабулярного компонента</kwd><kwd>dysplasia</kwd><kwd>total hip replacement</kwd><kwd>uncoverage of acetabular component</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Волокитина Е.А., Колотыгин Д.А.. Особенности первичной и ревизионной имплантации бесцементного тазового компонента при диспластическом коксартрозе. Травматология и ортопедия России. 2009; (3): 119-121</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Пернер К. 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