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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">689</article-id><article-id pub-id-type="doi">10.21823/2311-2905-2017-23-1-45-58</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">WHAT INFLUENCE ON EARLY POSTOPERATIVE PAIN INTENSITY AFTER TOTAL KNEE ARTHROPLASTY?</article-title><trans-title-group xml:lang="ru"><trans-title>ФАКТОРЫ, ВЛИЯЮЩИЕ НА ИНТЕНСИВНОСТЬ БОЛЕВОГО СИНДРОМА В РАННЕМ ПОСЛЕОПЕРАЦИОННОМ ПЕРИОДЕ ПОСЛЕ ТОТАЛЬНОЙ АРТРОПЛАСТИКИ КОЛЕННОГО СУСТАВА</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Saraev</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Сараев</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><italic>Alexander V. Saraev </italic></p><p>8, ul. Akad. Baykova, St. Petersburg,</p></bio><bio xml:lang="ru"><p><italic>Сараев Александр Викторович</italic>.</p><p>Ул. Акад. Байкова, д. 8, Санкт-Петербург, 195427</p></bio><email>saraefff@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lindberg</surname><given-names>M. F.</given-names></name><name xml:lang="ru"><surname>Линдберг</surname><given-names>М. Ф.</given-names></name></name-alternatives><address><country country="NO">Norway</country></address><bio xml:lang="en"><p><italic>Maren Falch Lindberg </italic></p><p>0440 Oslo</p></bio><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gay</surname><given-names>C.</given-names></name><name xml:lang="ru"><surname>Гэй</surname><given-names>К.</given-names></name></name-alternatives><address><country country="NO">Norway</country></address><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rosseland</surname><given-names>L. A.</given-names></name><name xml:lang="ru"><surname>Росселэнд</surname><given-names>Л. А.</given-names></name></name-alternatives><address><country country="NO">Norway</country></address><bio xml:lang="en"><p>Leiv Arne Rosseland </p><p>0316 Oslo</p></bio><bio xml:lang="ru"><p><italic>Росселэнд Лейв Арне</italic></p><p>0316, Осло</p></bio><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lerdal</surname><given-names>A.</given-names></name><name xml:lang="ru"><surname>Лердал</surname><given-names>А.</given-names></name></name-alternatives><address><country country="NO">Norway</country></address><bio xml:lang="en"><p><italic>Anners Lerdal </italic></p><p>0440 Oslo</p></bio><bio xml:lang="ru"><p><italic>Лердал Андерс </italic></p><p>0440, Осло</p></bio><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><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><italic>Nicholai N. Kornilov </italic></p><p>8, ul. Akad. Baykova, St. Petersburg</p></bio><bio xml:lang="ru"><p><italic>Корнилов Николай Николаевич </italic></p><p><italic/>ул. Акад. Байкова, д. 8, Санкт-Петербург, 195427</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff6"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kulyaba</surname><given-names>T. A.</given-names></name><name xml:lang="ru"><surname>Куляба</surname><given-names>Т. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><italic>Taras A. Kulyaba </italic></p><p>8, ul. Akad. Baykova, St. Petersburg</p></bio><bio xml:lang="ru"><p><italic>Куляба Тарас Андреевич</italic></p><p><italic/>ул. Акад. Байкова, д. 8, Санкт-Петербург, 195427</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">Российский научно-исследовательский институт травматологии и ортопедии им. Р.Р. Вредена</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Lovisenberg Diakonale Hospital</institution></aff><aff><institution xml:lang="ru">Госпиталь Лувизенберг Диаконале</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Institute of Clinical Medicine, University of Oslo</institution></aff><aff><institution xml:lang="ru">Институт клинической медицины Университета Осло</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">University of California</institution></aff><aff><institution xml:lang="ru">Калифорнийский университет</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Oslo University Hospital</institution></aff><aff><institution xml:lang="ru">Клиника университета Осло</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Mechnikov North-Western State Medical University</institution></aff><aff><institution xml:lang="ru">Северо-Западный государственный медицинский университет им. И.И. Мечникова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-04-10" publication-format="electronic"><day>10</day><month>04</month><year>2017</year></pub-date><volume>23</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>45</fpage><lpage>58</lpage><history><date date-type="received" iso-8601-date="2017-04-11"><day>11</day><month>04</month><year>2017</year></date><date date-type="accepted" iso-8601-date="2017-04-11"><day>11</day><month>04</month><year>2017</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/689">https://journal.rniito.org/jour/article/view/689</self-uri><abstract xml:lang="en"><p><italic>Purpose</italic> – to describe the relationship of selected socio-demographic, clinical, and surgical factors with the severity and patterns of postoperative pain during the first three days following total knee arthroplasty.</p><p><italic>Material and methods</italic>. The sample included 100 patients (93 women and 7 men; mean age 63.5±7.8 years) with osteoarthritis admitted for primary total knee arthroplasty. Prior to surgery, standard measures were used to assess preoperative pain and other symptoms, clinical manifestations of osteoarthritis, functional status of the knee, comorbidities, functional abilities, quality of life, and other patient characteristics. Physical, biochemical and surgical parameters of the perioperative period were also recorded. Patterns of daily changes in postoperative pain characteristics were investigated with the use of individual diaries.</p><p> <italic>Results.</italic> All the analyzed indicators of postoperative pain progressively decreased during the three days after surgery (р&lt;0,001), including the number of daily hours of moderate to severe pain (р&lt;0,001). Pain levels were generally higher among women than among men (р = 0,009). Of the analyzed preoperative factors, higher levels postoperative pain were correlated with higher levels of anxiety (р = 0,029) and preoperative pain intensity (р = 0,029). Among the perioperative factors, surgery duration longer than 90 minutes was associated with higher levels of postoperative pain in activity (р = 0,012) and more hours of moderate/severe pain (р = 0,008). Characteristics of postoperative pain were unrelated to level of patient education, social or family status, employment, lifestyle, or any other clinical or laboratory variables.</p><p><italic>Conclusion.</italic> Of the many factors previously associated with postoperative pain, only gender, anxiety and level of preoperative pain confirmed their importance in this study. Among the perioperative factors, surgery duration, which varied by the type of implant, was significantly associated with postoperative pain levels. </p></abstract><trans-abstract xml:lang="ru"><p><italic>Цель исследования</italic> – установить взаимосвязь комплекса социально-демографических, когнитивных, клинических и хирургических факторов с интенсивностью и динамикой болевого синдрома в течение первых трех суток после тотального эндопротезирования коленного сустава.</p><p><italic>Материал и методы</italic>. В исследование было включено 100 больных гонартрозом, госпитализированных для первичного тотального эндопротезирования коленного сустава. Женщин было 93 (93%), мужчин – 7 (7%). Средний возраст пациентов составил 63,5±7,8 лет. С использованием специализированных тестов перед проведением хирургического вмешательства проведена детализированная оценка различных показателей болевого синдрома, выраженности клинических проявлений гонартроза и функционального состояния коленного сустава, параметров повседневной двигательной активности и качества жизни пациентов, а также особенностей сопутствующих заболеваний. Отдельно были проанализированы вариабельные физические, биохимические и хирургические параметры периоперационного периода. Суточная динамика изменения характеристик послеоперационного болевого синдрома исследована с использованием индивидуальных дневников как при разных видах нагрузок, так и в покое.</p><p><italic>Результаты.</italic> Все анализируемые показатели болевого синдрома прогрессивно уменьшались в течение трех дней после операции (р&lt;0,001), в том числе ежедневная продолжительность умеренной и сильной боли (р&lt;0,001). У женщин болевой синдром был более выражен, чем у мужчин (р = 0,009). Из проанализированных предоперационных факторов статистическая значимая положительная взаимосвязь была продемонстрирована для уровня тревожности (р = 0,029), интенсивности болевого синдрома (р = 0,029) и высокого уровня двигательной активности пациента (р = 0,012). Среди периоперационных факторов только продолжительность вмешательства более 90 мин коррелировала с интенсивностью боли (р = 0,008). Характеристики послеоперационного болевого синдрома не зависели от уровня образования пациента, социального или семейного статуса, вида занятости, особенностей образа жизни, а также каких-либо других клинических или лабораторных переменных.</p><p><italic>Заключени</italic>е. Из многочисленных факторов, которые ассоциированы с уровнем послеоперационного болевого синдрома, только пол, тревожность и более высокий уровень предоперационной боли оказались статистически значимыми. Среди периоперационных факторов следует выделить продолжительность операции, которая зависела от вида имплантата и была статистически значимо ассоциирована с высоким уровнем послеоперационной боли. </p></trans-abstract><kwd-group xml:lang="en"><kwd>knee arthroplasty</kwd><kwd>postoperative pain</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>болевой синдром</kwd><kwd>эндопротезирование коленного сустава</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Ayers D.C., Franklin P.D., Ring D.C. The role of emotional health in functional outcomes after orthopaedic surgery: extending the biopsychosocial model to orthopaedics: AOA critical issues. J Bone Joint Surg Am. 2013;95(21):e165. doi: 10.2106/JBJS.L.00799.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>2. Blackburn J., Qureshi A., Amirfeyz R., Bannister G. 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