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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">1365</article-id><article-id pub-id-type="doi">10.21823/2311-2905-2020-26-3-34-48</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">Lateral Unicompartmental Knee Arthroplasty in Structure of Modern Knee Replacement: Is It «Woe From Wit» or a Viable Go-To Method?</article-title><trans-title-group xml:lang="ru"><trans-title>Одномыщелковое латеральное эндопротезирование в структуре современной артропластики коленного сустава: «горе от ума» или оптимальное решение?</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5127-5088</contrib-id><name-alternatives><name xml:lang="en"><surname>Chugaev</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Чугаев</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dmitrii V. Chugaev — Cand. Sci. (Med.), Orthopedic Surgeon</p><p>St. Petersburg</p></bio><bio xml:lang="ru"><p>Чугаев Дмитрий Валерьевич — канд. мед. наук, врач травматолог-ортопед</p><p>Санкт-Петербург</p></bio><email>dr.chugaev@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6905-7900</contrib-id><name-alternatives><name xml:lang="en"><surname>Kornilov</surname><given-names>N. N.</given-names></name><name xml:lang="ru"><surname>Корнилов</surname><given-names>Н. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Nikolai N. Kornilov — Dr. Sci. (Med.), Professor, Chair of Traumatology and Orthopedics; Leading Researcher, Knee Pathology Department</p><p>St. Petersburg</p></bio><bio xml:lang="ru"><p>Корнилов Николай Николаевич — д-р мед. наук, профессор кафедры травматологии и ортопедии, ведущий научный сотрудник отделения патологии коленного сустава</p><p>Санкт-Петербург</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4525-2135</contrib-id><name-alternatives><name xml:lang="en"><surname>Karpukhin</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Карпухин</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Aleksey S. Karpukhin — Head of Department, Federal Center of Traumatology, Orthopedics and Arthroplasty</p><p>Cheboksary</p></bio><bio xml:lang="ru"><p>Карпухин Алексей Сергеевич — заведующий отделением, ФгБУ «Федеральный центр травматологии, ортопедии и эндопротезирования» Минздрава России</p><p>г. Чебоксары</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7179-4851</contrib-id><name-alternatives><name xml:lang="en"><surname>Kogan</surname><given-names>P. G.</given-names></name><name xml:lang="ru"><surname>Коган</surname><given-names>П. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Pavel G. Kogan — Cand. Sci. (Med.), Orthopedic Surgeon</p><p>St. Petersburg</p></bio><bio xml:lang="ru"><p>Коган Павел Геннадьевич — канд. мед. наук, врач травматолог-ортопед</p><p>Санкт-Петербург</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4159-0724</contrib-id><name-alternatives><name xml:lang="en"><surname>Lasunsky</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Ласунский</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Sergei A. Lasunsky — Cand. Sci. (Med.), Head of the Trauma and Orthopedic Department</p><p>St. Petersburg</p></bio><bio xml:lang="ru"><p>Ласунский Сергей Анатольевич — канд. мед. наук, заведующий травматолого-ортопедическим отделением</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 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><aff-alternatives id="aff2"><aff><institution xml:lang="en">Federal Center of Traumatology, Orthopedics and Arthroplasty</institution></aff><aff><institution xml:lang="ru">Федеральный центр травматологии, ортопедии и эндопротезирования Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-09-29" publication-format="electronic"><day>29</day><month>09</month><year>2020</year></pub-date><volume>26</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>34</fpage><lpage>48</lpage><history><date date-type="received" iso-8601-date="2020-01-16"><day>16</day><month>01</month><year>2020</year></date><date date-type="accepted" iso-8601-date="2020-03-27"><day>27</day><month>03</month><year>2020</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/1365">https://journal.rniito.org/jour/article/view/1365</self-uri><abstract xml:lang="en"><p><bold>Background</bold>. Results of numerous contemporary studies indicate that medial and lateral unicompartmental knee arthroplasty (UKA) are almost equally effective both in clinical and functional aspects with no statistically significant difference in most cases. Furthermore, both operations tend to reach the effectiveness of total knee arthroplasty (TKA), despite the common opinion that any UKA is a more complex and skill challenging surgery with a less predictable outcome. <bold>The purpose</bold> — to asses if UKA in the patients with end-stage lateral unicompartmental osteoarthritis is an effective surgical intervention that may allow obtaining good and excellent medium-term functional results, that are comparable to the results of the medial unicompartmental arthroplasty, and to see if there are any benefits in comparison to the total knee arthroplasty (TKA). <bold>Materials and Methods</bold>. 140 middle-aged and elderly adults with end-stage osteoarthritis underwent knee arthroplasty at Vreden National Medical Research Center of Traumatology and Cheboksary Federal Center of Traumatology, Orthopedics and Arthroplasty. Group I (lateral UKA) (the main ) consisted of 15 patients with knee arthritis and type I Krakow valgus knee deformity, who underwent the lateral UKA with a fixed all-polyethylene tibial component. Group II (medial UKA) included 58 patients with end-stage medial unicompartmental osteoarthritis, who underwent the medial UKA using an endoprosthesis of a similar design. Group III (TKA) was represented by 67 patients with gonarthrosis accompanied by type II Krackow valgus knee deformity, who underwent the total knee arthroplasty with cruciate retaining (CR) prosthesis. The comparison between the groups was carried out regarding the achieved range of motion, functional result (using Oxford Knee Score and Forgotten Joint Score), as well as the rate of different types of complications. <bold>Results</bold>. During the study, two main objectives were set. The first was to compare the outcomes of the lateral and medial UKA. It was revealed that the lateral UKA allowed the patients to obtain good function of the operated knee, with the best results among the compared groups on the Forgotten Joint Score. The second objective was to compare the results of the lateral UKA and TKA in the patients with type II Krackow knee valgus deformity. Here, our study revealed that the group of UKA (group I) compared to the TKA had better results according to Forgotten Joint Score (71.5±5.3 vs 65.2±7; <italic>p</italic> = 0.9) and had a slightly lower range of motion according to Oxford Knee Score (34.6±2.3 versus 35.9±2.2; <italic>p</italic> = 0.7). It is worth noting that in both cases the difference was not statistically significant. <bold>Conclusion</bold>. Despite the fact that the lateral UKA made it possible to achieve a good functional outcome, the integral score was the same as in the groups with the medial UKA and the total knee arthroplasty. The older patients were more satisfied with the results of the partial arthroplasty than with the results of the total.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность</bold>. Последние исследования показывают, что значимой разницы в клинических и функциональных исходах между медиальным и латеральным одномыщелковым эндопротезированием коленного сустава (ОэКС) нет, несмотря на то, что латеральная частичная артропластика исторически считается более сложным оперативным вмешательством с менее прогнозируемым результатом, чем медиальная. <bold>Гипотеза исследования</bold> — ОэКС у пациентов с латеральным гонартрозом терминальной стадии является эффективным хирургическим вмешательством, позволяющим получить хорошие и отличные среднесрочные функциональные результаты оперативного лечения, сходные с результатами частичной артропластики медиального отдела, и более высокие, чем при тотальном эндопротезировании коленного сустава (ТэКС). <bold>Материал и методы</bold>. В ретроспективное двухцентровое исследование были включены 140 пациентов с деформирующим артрозом коленного сустава, которым в период с 2011 по 2018 г. были произведены операции по замещению коленного сустава на искусственный. группу I составили 15 пациентов с гонартрозом коленного сустава и вальгусной деформацией I типа по классификации Kraсkow, которым было выполнено латеральное ОэКС с фиксированным полностью полиэтиленовым большеберцовым компонентом. группа II была сформирована из 58 больных с деформирующим артрозом коленного сустава, с преимущественным поражением его внутреннего отдела, которым произвели медиальное ОэКС с использованием эндопротеза аналогичной конструкции. группа III была представлена 67 пациентами с гонартрозом, сопровождающимся II типом вальгусной деформации по классификации Kraсkow, которым было проведено ТэКС с сохранением задней крестообразной связки. Сравнение между пациентами изучаемых групп было проведено по достигнутой амплитуде движений в прооперированном суставе, его функциональному состоянию (опросники Oxford Knee Score — OKS и Forgotten Joint Score FJS), а также частоте и характеру осложнений. <bold>Результаты</bold>. В ходе исследования были поставлены две задачи. Первая задача — сравнить исходы одномыщелкового эндопротезирования латерального и медиального отделов коленного сустава. При этом было выявлено, что одномыщелковое латеральное эндопротезирование позволило пациентам получить хорошую функцию прооперированного коленного сустава с наиболее высокими показателями в сравниваемых группах по шкале FJS. Вторая задача — проанализировать результаты частичного латерального и тотального замещения коленного сустава у пациентов с вальгусной деформацией. Наше исследование выявило наиболее высокие показатели по шкале FJS в группе одномыщелкового эндопротезирования (71,5±5,3 против 65,2±7; <italic>p</italic> = 0,9) на фоне незначительно более низкой амплитуды движений в коленном суставе по OKS (34,6±2,3 против 35,9±2,2; <italic>p</italic> = 0,7) в сравнении с тотальным эндопротезированием (без статистически значимых различий). <bold>Заключение</bold>. Несмотря на то, что латеральное ОэКС позволило добиться хорошего функционального исхода, интегральная балльная оценка оказалась такой же, как и в группах с медиальным ОэКС и ТэКС. Выявлена сильная корреляционная связь между удовлетворенностью пациентов проведенным лечением и увеличением возраста и ИМТ в группе латерального ОэКС, тогда как в группе ТэКС аналогичная связь была выявлена только между ИМТ и функциональными результатами по шкале FJS.</p></trans-abstract><kwd-group xml:lang="en"><kwd>total knee arthroplasty</kwd><kwd>unicompartmental knee arthroplasty</kwd><kwd>knee osteoarthritis</kwd><kwd>UKA lateral</kwd><kwd>UKA medial</kwd><kwd>knee valgus deformity</kwd><kwd>knee varus deformity</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>тотальное эндопротезирование коленного сустава</kwd><kwd>одномыщелковое эндопротезирование коленного сустава</kwd><kwd>гонартроз</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Корнилов Н.Н., Денисов А.А. Парадигма раннего гонартроза: обзор современных возможностей диагностики и лечения (часть 1). 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