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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">1182</article-id><article-id pub-id-type="doi">10.21823/2311-2905-2019-25-1-122-141</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Discussions</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Дискуссии</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="zh"><subject>Discussions</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Classifications of Acetabular Defects: Do They Provide an Objective Evidence for Complexity of Revision Hip Joint Arthroplasty? (Critical Literature Review and Own Cases)</article-title><trans-title-group xml:lang="ru"><trans-title>Классификации дефектов вертлужной впадины: дают ли они объективную картину сложности ревизионного эндопротезирования тазобедренного сустава? (критический обзор литературы и собственных наблюдений)</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><bio xml:lang="en"><p>Rashid M. Tikhilov — Dr. Sci. (Med.), professor, director of Vreden RRITO; professor of Traumatology and orthopedics Department, Mechnikov NWSMU.</p><p>St. Petersburg</p></bio><bio xml:lang="ru"><p>Тихилов Рашид Муртузалиевич — доктор медицинских наук, профессор, директор РНИИТО им. Р.Р. Вредена; профессор кафедры травматологии и ортопедии СЗГМУ им. И.И. Мечникова.</p><p>Санкт-Петербург</p></bio><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><bio xml:lang="en"><p>Igor I. Shubnyakov — Dr. Sci. (Med.), chief researcher.</p><p>St. Petersburg</p></bio><bio xml:lang="ru"><p/><p>Шубняков Игорь Иванович — доктор медицинских наук, главный научный сотрудник.</p>Санкт-Петербург</bio><email>shubnyakov@mail.ru</email><xref ref-type="aff" rid="aff1"/></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><bio xml:lang="en"><p/><p>Alexei O. Denisov - Cand. Sci. (Med), academic secretary.</p>St. Petersburg</bio><bio xml:lang="ru"><p>Денисов Алексей Олегович — кандидат медицинских наук, ученый секретарь.</p><p>Санкт-Петербург</p></bio><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">ФГБОУ ВО «Северо-Западный государственный медицинский университет им. И.И. Мечникова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-05-09" publication-format="electronic"><day>09</day><month>05</month><year>2019</year></pub-date><volume>25</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>122</fpage><lpage>141</lpage><history><date date-type="received" iso-8601-date="2019-05-09"><day>09</day><month>05</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-05-09"><day>09</day><month>05</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/1182">https://journal.rniito.org/jour/article/view/1182</self-uri><abstract xml:lang="en"><p>The present paper bears discussion in nature and doesn’t claim for any scientific evidence.</p><p><bold>The purpose</bold> is to identify which classification of acetabular defects currently is the most employed in revision hip joint arthroplasty, and how precise this classification reflects the true defect severity and gives the objective grounds for selection of revision implants.</p><p><bold>Materials and methods</bold>. The authors conducted literature analysis in PubMed and eLIBRARY for the last five years. 170 publications in English, German and Spanish languages as well as 15 works in Russian language dedicated to classification of acetabular defects were selected.</p><p><bold>Results</bold>. W.Paprosky classification was found to be the most applicable, namely, in 65,9% of foreign publications and in 100% of Russian papers. AAOS classification was used in 22.9% of cases, Gross and Saleh — in 4.1%, Gustilo and Pasternak — in 1.2%. 5.9% publications reported use of two classifications. The reasons for Paprosky classification popularity is the possibility to evaluate defect basing on standard pelvis x-rays in preoperative stage as well as in retrospective research. At the same time, according to literature, the confidence of Paprosky classification (accuracy of correspondence to intraoperative findings) varies from 16 to 66% for different areas of acetabulum, and during reliability assessment (consistency between different specialists) kappa coefficient varies from 0.14 to 0.75 depending on experience of the specialist and specifics of the defect. One of the possible reason for discrepancies in assessment of defect grade are the iatrogenic and posttraumatic changes of the acetabulum. Nevertheless, Paprosky classification is evolving and, considering additional parameters, like type of defect (contained or non-contained) and pelvic ring continuity, it allows to create a full-fledge algorithm for selection of revision implants and defect replacement which is adequate to the up-to-date surgical needs. At the same time onrush of digital technologies of 3D-visualization considerably expands our possibilities for preoperative defects assessment and offers promising potential for development of new classifications, whose benefits are yet to be evaluated.</p></abstract><trans-abstract xml:lang="ru"><p>Данная работа носит дискуссионный характер и не претендует на какой-либо уровень научной доказательности.</p><p><bold>Цель</bold> — определить, какая классификация дефектов вертлужной впадины на сегодняшний день является наиболее используемой при ревизионном эндопротезировании тазобедренного сувстава, и насколько точно эта классификация отражает реальную тяжесть дефекта и объективизирует выбор ревизионных компонентов.</p><p><bold>Материал и методы</bold>. Проведен поиск и анализ литературы в базах данных PubMed и eLIBRARY за последние пять лет. Отобрано 170 публикаций на английском, немецком и испанском языках и 15 публикаций на русском языке, в которых осуществлялось классифицирование дефектов вертлужной впадины.</p><p><bold>Результаты.</bold> Наиболее используемой оказалась классификация W. Paprosky, которая применялась в 65,9% иностранных публикаций и в 100% русскоязычных статей. Классификация aaos использовалась в 22,9% случаев, Gross и Saleh — в 4,1%, Gustilo и Pasternak — 1,2%. В 5,9% работ применялось по две классификационные системы. Причиной популярности классификации Paprosky является возможность оценки тяжести дефекта по стандартным рентгенограммам таза как в дооперационном периоде, так и в последующем в ретроспективных исследованиях. В то же время, по данным литературы, достоверность (точность совпадения с интра-операциоными находками) классификации Paprosky колеблется для разных отделов вертлужной впадины от 16 до 66%, а при оценке надежности (согласованности между разными специалистами) коэффициент каппа варьирует от 0,14 до 0,75 и зависит от опыта специалиста и характера дефекта. Одной из возможных причин расхождения в оценке степени тяжести дефекта являются ятрогенные и посттравматические изменения вертлужной впадины. Классификация Paprosky развивается с учетом дополнительных параметров, таких как характер дефекта (ограниченный или неограниченный) и непрерывность тазового кольца, позволяет сформировать полноценный алгоритм выбора ревизионных имплантатов и способа замещения дефекта, актуальный на сегодняшний день. В то же время, стремительное развитие цифровых технологий 3Б-визуализации в значительной мере расширяют наши возможности предоперационной оценки дефектов и открывают перспективы для разработки новых классификаций, пользу которых еще предстоит оценить.</p></trans-abstract><kwd-group xml:lang="en"><kwd>revision hip joint arthroplasty</kwd><kwd>classification of bone defects</kwd><kwd>Paprosky classification</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ревизионное эндопротезирование тазобедренного сустава</kwd><kwd>классификации дефектов костной ткани</kwd><kwd>классификация Paprosky</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1.	Мурылев В.Ю., Куковенко Г.А., Елизаров П.М., Иваненко Л.Р., Сорокина Г.Л., Рукин Я.А., Алексеев С.С., Германов В.Г. Алгоритм первого этапа лечения поздней глубокой перипротезной инфекции тазобедренного сустава. Травматология и ортопедия России. 2018;24(4):95-104. 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