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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">Regional Anesthesia and Acute Pain Management</journal-id><journal-title-group><journal-title xml:lang="en">Regional Anesthesia and Acute Pain Management</journal-title><trans-title-group xml:lang="ru"><trans-title>Регионарная анестезия и лечение острой боли</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1993-6508</issn><issn publication-format="electronic">2687-1394</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">689488</article-id><article-id pub-id-type="doi">10.17816/RA689488</article-id><article-id pub-id-type="edn">PZFPML</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original study articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">Effectiveness of combined PENG block and lateral femoral cutaneous nerve block with intravenous dexamethasone in total hip arthroplasty: a prospective, randomized study</article-title><trans-title-group xml:lang="ru"><trans-title>Эффективность применения комбинации PENG-блока с блокадой латерального кожного нерва бедра в сочетании с внутривенным введением дексаметазона при тотальном эндопротезировании тазобедренного сустава: проспективное рандомизированное исследование</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-6683-8821</contrib-id><contrib-id contrib-id-type="spin">8443-0482</contrib-id><name-alternatives><name xml:lang="en"><surname>Terenin</surname><given-names>Maksim A.</given-names></name><name xml:lang="ru"><surname>Теренин</surname><given-names>Максим Александрович</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>jack_66@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4516-8192</contrib-id><contrib-id contrib-id-type="spin">1897-9814</contrib-id><name-alternatives><name xml:lang="en"><surname>Rymasheuski</surname><given-names>Uladislav V.</given-names></name><name xml:lang="ru"><surname>Римашевский</surname><given-names>Владислав Викторович</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Assistant Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, доцент</p></bio><email>rimwlad@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">6th City Clinical Hospital, Minsk</institution></aff><aff><institution xml:lang="ru">6-я городская клиническая больница, Минск</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Belarusian State Medical University</institution></aff><aff><institution xml:lang="ru">Белорусский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-12-22" publication-format="electronic"><day>22</day><month>12</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-12-31" publication-format="electronic"><day>31</day><month>12</month><year>2025</year></pub-date><volume>19</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>311</fpage><lpage>322</lpage><history><date date-type="received" iso-8601-date="2025-08-18"><day>18</day><month>08</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-11-22"><day>22</day><month>11</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Эко-Вектор</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><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://rjraap.com/1993-6508/article/view/689488">https://rjraap.com/1993-6508/article/view/689488</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND: </bold>Although total hip arthroplasty is one of the most frequently performed orthopedic procedures worldwide, the problem of postoperative analgesia remains unresolved. The pericapsular nerve group block (PENG block) has proven to be an effective analgesic technique for total hip arthroplasty; however, its effect does not extend to the skin of the anterior and lateral thigh. For this reason, the PENG block is recommended to be supplemented with a lateral femoral cutaneous nerve block (LFCNB), yet studies evaluating their combined use in total hip arthroplasty remain limited.</p> <p><bold>AIM:</bold> This study aimed to evaluate the effectiveness of combined PENG block and LFCNB with intravenous dexamethasone in patients undergoing total hip arthroplasty.</p> <p><bold>METHODS:</bold> This was a single-center, prospective, randomized study conducted in 90 patients undergoing primary total hip arthroplasty under spinal anesthesia. Patients were randomized into two groups: group 1, PENG block + LFCNB + dexamethasone + spinal anesthesia (<italic>n</italic> = 45); group 2, spinal anesthesia alone (<italic>n</italic> = 45). Pain intensity was assessed using the numeric rating scale over 48 hours, and the ability to initiate ambulation at first verticalization after total hip arthroplasty was evaluated. Additionally, the following were assessed: time to the first opioid analgesic injection and its total consumption, the presence of postoperative nausea and vomiting, quadriceps femoris muscle strength (MRC scale), and patient satisfaction with anesthesia (QoR-15 questionnaire).</p> <p><bold>RESULTS:</bold> In group 1, postoperative pain intensity (at rest and during movement) was lower at all assessment time points compared with group 2 (<italic>p</italic> &lt; 0.05). At first verticalization, more patients in group 1 began walking (86.67%) compared with group 2 (42.22%) (<italic>p</italic> &lt; 0.001). Total opioid consumption during the first postoperative day was lower in group 1 (<italic>p</italic> &lt; 0.001). Quadriceps muscle strength assessed 6 hours after total hip arthroplasty was lower in group 1 (<italic>p</italic> = 0.016). Patients in group 1 were more satisfied with the quality of recovery after anesthesia during postoperative day 1 after total hip arthroplasty (QoR-15 score 130 [125; 136]) compared with patients in group 2 (117 [111; 125]) (<italic>p</italic> &lt; 0.001).</p> <p><bold>CONCLUSIONS:</bold> The combination of PENG block, LFCNB, and intravenous dexamethasone provides effective analgesia, accelerates rehabilitation, and improves recovery outcomes after total hip arthroplasty.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Несмотря на то, что тотальное эндопротезирование тазобедренного сустава (ТЭТС) относится к числу наиболее часто выполняемых ортопедических вмешательств в мире, проблема послеоперационного обезболивания до сих пор остаётся нерешённой. Блокада перикапсулярной группы нервов (PENG-блок) зарекомендовала себя как эффективный метод анальгезии при ТЭТС, однако эффект не распространяется на кожу передней и латеральной поверхности бедра. По этой причине PENG-блок рекомендуется дополнять блокадой латерального кожного нерва бедра (БЛКНБ), но исследований по их применению для ТЭТС пока что немного.</p> <p><bold>Цель исследования.</bold> Провести оценку эффективности применения PENG-блока с БЛКНБ в сочетании с внутривенным введением дексаметазона при ТЭТС.</p> <p><bold>Методы.</bold> Проведено одноцентровое проспективное рандомизированное исследование у 90 пациентов, перенёсших первичное ТЭТС под спинальной анестезией. Пациенты были рандомизированы на 2 группы: 1-я группа — PENG-блок + БЛКНБ + дексаметазон + спинальная анестезия (<italic>n</italic> = 45), 2-я группа — спинальная анестезия (<italic>n</italic> = 45). Оценивали интенсивность боли по цифровой рейтинговой шкале в течение 48 часов и возможность начала ходьбы при первой вертикализации после ТЭТС. Дополнительно оценивали время до первой инъекции опиоидного анальгетика и его общее потребление, наличие послеоперационной тошноты и рвоты, силу четырёхглавой мышцы бедра (по шкале MRC), оценку удовлетворённости пациентов анестезией (по опроснику QoR-15).</p> <p><bold>Результаты.</bold> В 1-й группе интенсивность послеоперационной боли (в покое и при движении) на всех этапах оценки была ниже, чем во 2-й группе (<italic>p</italic> &lt; 0,05). При первой вертикализации больше пациентов в 1-й группе (86,67%) начали ходить, чем во 2-й группе — 42,22% (<italic>p</italic> &lt; 0,001). Общее потребление опиоидов за первые послеоперационные сутки в 1-й группе было ниже (<italic>p</italic> &lt; 0,001). Сила четырёхглавой мышцы бедра при оценке через 6 часов после ТЭТС была ниже в 1-й группе (<italic>p</italic> = 0,016). Пациенты 1-й группы были более удовлетворены качеством восстановления после анестезии (по опроснику QoR-15) за 1-е сутки после ТЭТС (130 [125; 136] баллов), чем пациенты 2-й группы — 117 [111; 125] баллов (<italic>p &lt; </italic>0,001).</p> <p><bold>Заключение.</bold> Применение PENG-блока в комбинации с БЛКНБ и внутривенным введением дексаметазона обеспечивает эффективное обезболивание, ускоряет реабилитацию и улучшает результаты восстановления после ТЭТС.</p></trans-abstract><kwd-group xml:lang="en"><kwd>total hip arthroplasty</kwd><kwd>PENG block</kwd><kwd>lateral femoral cutaneous nerve block</kwd><kwd>postoperative analgesia</kwd><kwd>muscle weakness</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>тотальное эндопротезирование тазобедренного сустава</kwd><kwd>PENG-блок</kwd><kwd>блокада латерального кожного нерва бедра</kwd><kwd>послеоперационное обезболивание</kwd><kwd>мышечная слабость</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Pivec R, Johnson AJ, Mears SC, Mont MA. 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