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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">999</article-id><article-id pub-id-type="doi">10.21823/2311-2905-2018-24-2-19-28</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">RESIDUAL DEFORMITY AFTER BILATERAL KNEE ARTHROPLASTY: IMPACT ON SHORT TERM OUTCOMES</article-title><trans-title-group xml:lang="ru"><trans-title>ОСТАТОЧНАЯ ДЕФОРМАЦИЯ ПОСЛЕ ДВУСТОРОННЕГО ЭНДОПРОТЕЗИРОВАНИЯ КОЛЕННЫХ СУСТАВОВ: ВЛИЯНИЕ НА КРАТКОСРОЧНЫЕ РЕЗУЛЬТАТЫ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zinoviev</surname><given-names>M. P.</given-names></name><name xml:lang="ru"><surname>Зиновьев</surname><given-names>М. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p/><p>Maxim P. Zinoviev — orthopedic surgeon, Orthopedic  department N 1.</p><p> </p>55, Ural’skiy pr., 622049, Nizhny Tagil.</bio><bio xml:lang="ru"><p/><p>Зиновьев Максим Павлович — врач ортопед-травматолог ортопедического отделения № 1.</p><p> </p>Уральский пр., д. 55, 622049, г. Нижний Тагил.</bio><email>max_travma@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Paskov</surname><given-names>R. V.</given-names></name><name xml:lang="ru"><surname>Паськов</surname><given-names>Р. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Roman V. Paskov — dr. Sci. (Med.), head doctor.</p><p>55, Ural’skiy pr., 622049, Nizhny Tagil.</p></bio><bio xml:lang="ru"><p/><p>Паськов Роман Владимирович — д-р мед. наук, главный врач.</p><p> </p>Уральский пр., д. 55, 622049, г. Нижний Тагил.</bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sergeev</surname><given-names>S. K.</given-names></name><name xml:lang="ru"><surname>Сергеев</surname><given-names>К. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Konstantin S. Sergeev — dr. Sci. (Med.), professor.</p><p>54, ul. Odesskaya, 625023, Tyumen.</p></bio><bio xml:lang="ru"><p/><p/><p>Сергеев Константин Сергеевич — д-р мед. наук, заведующий кафедрой травматологии, ортопедии и военно-полевой хирургии с курсом детской травматологии.</p>Ул. Одесская, д. 54, 625023, г. Тюмень.</bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rimashevsky</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Римашевский</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Denis V. Rimashevsky — cand. Sci. (Med.), associate professor.</p><p>6, Miklukho-Maklaya, Moscow, 117198.</p></bio><bio xml:lang="ru"><p>Римашевский Денис Владимирович — канд. мед. наук, доцент кафедры травматологии и ортопедии.</p><p>Ул. Миклухо-Маклая, д. 6, 117198.</p></bio><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Ural Clinical Medical and Rehabilitation Center.</institution></aff><aff><institution xml:lang="ru">ООО «Уральский клинический лечебно-реабилитационный центр» .</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Tyumen State Medical University.</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Тюменский государственный медицинский университет» Минздрава России.</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia.</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Российский университет дружбы народов» Минобрнауки России.</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-07-06" publication-format="electronic"><day>06</day><month>07</month><year>2018</year></pub-date><volume>24</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>19</fpage><lpage>28</lpage><history><date date-type="received" iso-8601-date="2018-07-04"><day>04</day><month>07</month><year>2018</year></date><date date-type="accepted" iso-8601-date="2018-07-04"><day>04</day><month>07</month><year>2018</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/999">https://journal.rniito.org/jour/article/view/999</self-uri><abstract xml:lang="en"><p><italic>Purpose</italic> — to evaluate the impact of frontal positioning of prosthesis components after bilateral Tka on short term functional outcomes. </p><p><italic>Material and Methods</italic>. The authors performed a retrospective analysis of teleroentgenograms of 466 patients after bilateral Tka with initial varus deformity. Functional and roentgenological outcomes were evaluated at average in 16,4±2,9 months postoperatively. Mean preoperative varus deformity was 10° (from 5 to 25°), initial angle between the anatomical and mechanical femoral axis (FVa) was 6,7±2° (from 3 to 12°). The neutral axis of both lower limbs (Hka = 180±0,5°) was obtained in 99 (21,2%) out of 466 patients. Residual deformity in one of the limbs above 3° with the neutral alignment of the contralateral limb was observed in 44 (9,4%) patients, bilateral residual deformity – in 32 (6,9%) patients. Other 291 patients demonstrated the deviation from mechanical axis in the range from 1 to 3° (±0,5°). all patients were divided into three groups: first group consisted of 10 patients with neutral axis of one limb and varus deformity of the other limb above 3°; second group — 10 patients with bilateral residual varus deformity above 3°; third group — 12 patients with neutral axis of both limbs (Hka = 180°). The angle of residual deformity averaged 3,7° (from 3,2 to 5,1°).</p><p><italic>Results.</italic> No statistically significant differences between the groups were observed for dynamometric parameters and SF-36 scores, as well as for functional kSS scores (p&gt;0,05). However, the authors reported in patients of the first group a stance phase on the side of residual varus deformity longer at 15% (p&lt;0,05) and transfer phase shorter at 17% (p&lt;0,05) as compared to contralateral limb (with neutral alignment, Hka = 180°), which is indicative of load asymmetry and can have a negative impact at a later stage.</p><p><italic>Conclusion</italic>. Symmetrical residual varus deformity of lower limbs in the rage of 3,2–5,1° has no negative impact of short term clinical and functional outcomes of Tka. Muscular function and gait properties in patients with neutral axis of the lower limbs and in patients with symmetrical residual varus deformity after Tka were similar 16,4±2,9 months postoperatively.</p></abstract><trans-abstract xml:lang="ru"><p><italic>Цель исследования</italic> — оценить влияние фронтального положения компонентов эндопротеза после двустороннего тотального эндопротезирования коленного сустава на краткосрочные функциональные результаты.</p><p><italic>Материал и методы</italic>. проведен ретроспективный анализ телерентгенограмм 466 пациентов после двустороннего тотального эндопротезирования коленных суставов (Тэкс) с исходной варусной деформацией. Функциональные и рентгенологические результаты оценивали в среднем через 16,4±2,9 мес. до операции варусная деформация в среднем составляла 10° (от 5 до 25°), исходный угол между анатомической и механической осями бедра (FVa) — 6,7±2° (от 3 до 12°). Из 466 пациентов после Тэкс нейтральная ось обеих конечностей (Hka = 180±0,5°) была получена у 99 (21,2%) пациентов. остаточная деформация одной конечности более 3° при нейтрально выравненной оси противоположной конечности наблюдалась у 44 (9,4%) пациентов, а двусторонняя — у 32 (6,9%). у остальных 291 пациента отклонение от механической оси варьировало в пределах от 1 до 3°(±0,5°). пациенты были поделены на три группы: 1-я группа — 10 пациентов с нейтральной осью одной конечности и варусной деформацией другой конечности более 3°; 2-я группа — 10 пациентов с двусторонней остаточной варусной деформацией более 3°; 3-я группа — 12 пациентов с нейтральной осью обеих нижних конечностей (Hka = 180°). угол остаточной деформации в среднем составил 3,7° (от 3,2 до 5,1°).</p><p><italic>Результаты</italic>. статистически значимых различий между группами по динамометрическим показателям и оценке по шкале SF-36 и функциональной главе шкалы kSS выявлено не было (p&gt;0,05). однако у пациентов 1-й группы на стороне остаточной варусной деформации отмечено увеличение периода опоры на 15% (p&lt;0,05) и уменьшение периода переноса на 17% (p&lt;0,05) по сравнению с контралатеральной конечностью (нейтрально выравненной, Hka = 180°), что является признаком асимметрии нагрузки и может негативно сказаться в отдаленном периоде.</p><p><italic>Заключение</italic>. симметричная остаточная варусная деформация нижних конечностей в 3,2–5,1° не оказывает негативного влияния на краткосрочные клинико-функциональные результаты Тэкс. Мышечная функция и качество походки у пациентов с нейтральной осью нижних конечностей и симметричной остаточной варусной деформацией через 16,4±2,9 мес. после Тэкс не имеют статистически значимых различий.</p></trans-abstract><kwd-group xml:lang="en"><kwd>knee joint arthroplasty</kwd><kwd>mechanical axis of the lower limb</kwd><kwd>varus deformity</kwd><kwd>gait analysis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эндопротезирование коленного сустава</kwd><kwd>механическая ось нижней конечности</kwd><kwd>варусная деформация</kwd><kwd>динамометрия</kwd><kwd>анализ походки</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Abdel M.P., Oussedik S., Parrate S., Lustig S., Hadda F.S. Coronal alignment in total knee replacement: historical review, contemporary analysis, and future direction. 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