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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">16764</article-id><article-id pub-id-type="doi">10.17816/2311-2905-16764</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">Osteonecrosis of the Femoral Head: Another Legacy of COVID-19?</article-title><trans-title-group xml:lang="ru"><trans-title>Остеонекроз головки бедренной кости — еще одно наследие COVID-19?</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/0009-0007-5995-7287</contrib-id><name-alternatives><name xml:lang="en"><surname>Myasoedov</surname><given-names>Alexey A.</given-names></name><name xml:lang="ru"><surname>Мясоедов</surname><given-names>Алексей Андреевич</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>myasoedov_alexei@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0218-3106</contrib-id><name-alternatives><name xml:lang="en"><surname>Shubnyakov</surname><given-names>Igor I.</given-names></name><name xml:lang="ru"><surname>Шубняков</surname><given-names>Игорь Иванович</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>shubnyakov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7500-9219</contrib-id><name-alternatives><name xml:lang="en"><surname>Sereda</surname><given-names>Andrei P.</given-names></name><name xml:lang="ru"><surname>Середа</surname><given-names>Андрей Петрович</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>drsereda@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-3020-2417</contrib-id><name-alternatives><name xml:lang="en"><surname>Karelkin</surname><given-names>Vitaliy V.</given-names></name><name xml:lang="ru"><surname>Карелкин</surname><given-names>Виталий 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><bio xml:lang="en"><p>Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>vvkarelkin@rniito.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-4087-595X</contrib-id><name-alternatives><name xml:lang="en"><surname>Yunkina</surname><given-names>Elizaveta A.</given-names></name><name xml:lang="ru"><surname>Юнкина</surname><given-names>Елизавета Алексеевна</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>zemlliza@yandex.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-9331-9704</contrib-id><name-alternatives><name xml:lang="en"><surname>Berezin</surname><given-names>Georgiy V.</given-names></name><name xml:lang="ru"><surname>Березин</surname><given-names>Георгий 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>georgyberezin1984@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Vreden National Medical Research Center of Traumatology and Orthopedics</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр травматологии и ортопедии им. Р.Р. Вредена» Минздрава России</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Academy of Postgraduate Education of Federal Medical Biological Agency</institution></aff><aff><institution xml:lang="ru">Академия постдипломного образования ФГБУ «Федеральный научно-клинический центр специализированных видов медицинской помощи и медицинских технологий ФМБА России»</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Vreden National Medical Research Center of Traumatology and Orthopedics</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр травматологии и ортопедии им. Р.Р. Вредена» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-12-28" publication-format="electronic"><day>28</day><month>12</month><year>2023</year></pub-date><volume>29</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><issue-title xml:lang="zh"/><fpage>49</fpage><lpage>58</lpage><history><date date-type="received" iso-8601-date="2023-10-04"><day>04</day><month>10</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-12-14"><day>14</day><month>12</month><year>2023</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/16764">https://journal.rniito.org/jour/article/view/16764</self-uri><abstract xml:lang="en"><p><bold>Background<italic>. </italic></bold>Recovery from COVID-19 does not always proceed without complications, especially in patients who have suffered severe forms of the disease. Most researchers confirm a significant increase in the incidence of osteonecrosis of the femoral head (ONFH) after COVID-19. However, there is no clear opinion on the individual aspects of the development and course of the disease. This is an extremely important issue that allows us to identify the main risk groups for the development of post-COVID-19 osteonecrosis and, consequently, to perform the earliest possible screening of this complication.</p> <p><bold>Aims of the study</bold><bold>:<italic> </italic></bold>1) To evaluate the impact of the past COVID-19 on epidemiologic parameters and clinical course of osteonecrosis of the femoral head in patients; 2) to study the causes of its development.</p> <p><bold>Methods<italic>. </italic></bold>We have analyzed the data of medical histories of 674 patients diagnosed with osteonecrosis of the femoral head who sought medical care in 2018 and in 2022. Patients were divided into 4 groups according to the presumed causes of development of the disease. The first group enrolled 183 patients who underwent COVID-19 and received steroid therapy (ST). The second group included 78 patients who underwent COVID-19 without ST therapy. The third group consisted of 103 patients with ONFH that manifested in 2022 without COVID-19 in the previous medical history. The comparison group was made up of 310 patients who developed ONFH in 2018 before the appearance of the SARS-CoV-2 virus.</p> <p><bold>Results<italic>. </italic></bold>The sample of patients with COVID-19-associated osteonecrosis differed significantly from patients without COVID-19, in terms of gender, age, time of disease onset, extent of the femoral head damage, and disease progression rate (p&lt;0.001). The level of early ONFH diagnosis was extremely low, not differing from that in the pre-pandemic period.</p> <p><bold>Conclusion<italic>. </italic></bold>The COVID-19 pandemic has increased the incidence of ONFH, significantly modifying both its epidemiology and clinical picture. Nevertheless, the vigilance of practitioners remains extremely low, which affects the timely diagnosis of the disease.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность<italic>. </italic></bold>Выздоровление после COVID-19 не всегда проходит без осложнений, особенно у пациентов, перенесших тяжелые формы заболевания. Большинство исследователей подтверждают значительный рост частоты развития остеонекроза головки бедренной кости (ОГБК) вследствие перенесенного COVID-19. При этом нет четкого мнения относительно индивидуальных аспектов развития и течения заболевания. Это является крайне важными моментом, позволяющим выделить основные группы риска развития остеонекроза после перенесенного COVID-19 и, как следствие, осуществить максимально ранний скрининг данного осложнения.</p> <p><bold>Цели исследования</bold><bold>:</bold> 1) оценить влияние перенесенного COVID-19 на эпидемиологические показатели и клиническое течение остеонекроза головки бедренной кости у пациентов; 2) изучить причины его развития.</p> <p><bold>Материал и методы<italic>.</italic></bold> Проанализированы данные медицинской документации 674 пациентов с диагнозом «остеонекроз головки бедренной кости», обратившихся за медицинской помощью в 2018 и в 2022 гг. Пациенты были разделены на 4 группы по предполагаемым причинам развития заболевания: первая группа — 183 пациента, перенесших COVID-19 и получавших лечение глюкокортикостероидами (ГКС); вторая группа — 78 пациентов, перенесших COVID-19 без терапии ГКС; третья группа — 103 пациента с ОГБК, дебютировавшем в 2022 г. и без COVID-19 в анамнезе. Четвертую группу (сравнения) составили 310 пациентов, у которых ОГБК развился в 2018 г., до появления вируса SARS-CoV-2.</p> <p><bold>Результаты<italic>. </italic></bold>Пациенты с остеонекрозом, ассоциированным с COVID-19, значительно отличались от пациентов, не болевших COVID-19, по полу, возрасту, срокам дебюта заболевания, объему поражения головки бедренной кости и скорости течения патологического процесса (<italic>р</italic>&lt;0,001). Уровень ранней диагностики ОГБК был крайне низким, не отличаясь от такового в допандемийный период.</p> <p><bold>Заключение<italic>.</italic></bold> Пандемия COVID-19 привела к увеличению частоты ОГБК, серьезно изменив как его эпидемиологию, так и клиническую картину. Тем не менее настороженность практикующих врачей остается крайне низкой, что сказывается на своевременной диагностике заболевания.</p></trans-abstract><trans-abstract xml:lang="zh"><p/></trans-abstract><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>osteonecrosis of the femoral head</kwd><kwd>avascular necrosis</kwd><kwd>diagnosis of osteonecrosis</kwd><kwd>steroids</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>остеонекроз головки бедренной кости</kwd><kwd>аваскулярный некроз</kwd><kwd>кортикостероиды</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Руководство по хирургии тазобедренного сустава. Под ред. Р.М. Тихилова, И.И. Шубнякова. СПб.: РНИИТО им. Р.Р. Вредена; 2014. Т. 1. с. 155-173. Guidelines on hip surgery. Ed. by R. Tikhilov, I. Shubnyakov. St. Petersburg; 2014. Vol. 1. p. 155-173. 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