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This retrospective cohort study assessed whether ultrasound-guided femoral nerve blocks (FNB) improve pain control and reduce adverse outcomes versus a standard analgesia protocol. Among 1577 patients, pain was evaluated by VAS from electronic medical records pre-surgery and at 12/24 hours, with morbidity and mortality tracked during hospitalization and 6 months after.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/ultrasound-guided-femoral-nerve-blocks-as-a-compulsory-pain-protocol-in-femoral-neck-fractures/406749/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/ultrasound-guided-femoral-nerve-blocks-as-a-compulsory-pain-protocol-in-femoral-neck-fractures/406749.png","ImageObject",300,407,{"name":92,"@type":93},"Mary Man","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-09-28",true,{"@type":102,"interactionType":103,"userInteractionCount":34},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What was the primary objective of the study?","Question",{"text":112,"@type":113},"To determine whether ultrasound-guided femoral nerve blocks produce a significant difference in pain scores compared with the standard analgesia protocol.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How was pain measured in this retrospective cohort?",{"text":117,"@type":113},"Pain was assessed from electronic medical records using the visual analogue scale (VAS) pre-surgery and at 12 and 24 hours post-surgery.",{"name":119,"@type":110,"acceptedAnswer":120},"What outcomes improved with ultrasound-guided femoral nerve blocks?",{"text":121,"@type":113},"Compared with standard analgesia, patients receiving ultrasound-guided FNB had lower preoperative VAS pain scores, lower rehospitalization rates, and lower mortality.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},406749,1790863118,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":52,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144,"preview_page_count":4},7421720224475,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","| W | J | O | World Journal of\u003Cbr>Orthopedics |\n| --- | --- | --- | --- |\n\nSubmit a Manuscript: [https://www.f6publishing.com](https://www.f6publishing.com) World J Orthop 2025 December 18; 16(12): 102402  \nDOI: 10.5312/wjo.v16.i12.102402 ISSN 2218-5836 (online)  \nORIGINAL ARTICLE  \nRetrospective Cohort Study  \nUltrasound guided femoral nerve blocks as a compulsory pain protocol in femoral neck fractures  \nYuri Klassov  \nSpecialty type: Orthopedics  \nProvenance and peer review:  \nUnsolicited article; Externally peer reviewed.  \nPeer-review model: Single blind  \nPeer-review report’s classification Scientific Quality: Grade B, Grade B  \nNovelty: Grade B, Grade B  \nCreativity or Innovation: Grade B, Grade C  \nScientific Significance: Grade B, Grade C  \nP-Reviewer: He L, MD, PhD, Assistant Professor, China; Liu J, MD, PhD, China  \nReceived: October 16, 2024  \nRevised: April 23, 2025  \nAccepted: November 14, 2025  \nPublished online: December 18, 2025  \nProcessing time: 426 Days and 21.8 Hours  \nYuri Klassov, Department of Orthopedic Surgery, Kantonsspital Baselland, Bruderholz 4101, Switzerland  \nYuri Klassov, Department of Orthopedic Surgery, Rabin Medical Center, Petah Tikva 4941492, Central, Israel  \nCorresponding author: Yuri Klassov, MD, Department of Orthopedic Surgery, Kantonsspital Baselland, Basel, Bruderholz 4101, [Switzerland.](Switzerland. yuriklassov@gmail.com)[ yuriklassov@gmail.com](Switzerland. yuriklassov@gmail.com)  \nAbstract  \nBACKGROUND  \nFemur fractures are one of the most serious injuries that occur in the older population and are associated with severe pain and increased mortality. The primary objective of this study was to find if there was a significant difference in pain scores in patients treated with femoral nerve blocks (FNB) compared with patients treated with the standard analgesia protocol. The secondary objective was to find if there was a significant difference in morbidity between the two groups.  \nAIM  \nTo evaluate the effectiveness of ultrasound (US)-guided FNB in managing preoperative pain and reducing morbidity in patients with neck femur fractures compared to the standard analgesia protocol. The study seeks to determine whether FNB offers superior outcomes in terms of pain control, rehospitalization rates, and mortality.  \nMETHODS  \nThis retrospective cohort study included 1577 patients suffering from neck femur fractures. 387 patients were treated with a FNB for pain management upon arrival at the emergency department, the rest were treated with standard analgesia. Pain was assessed from electronic medical records using the visual analogue scale (VAS) pre surgery, 12-and 24-hour post-surgery. To determine morbidity and mortality during hospitalizations and 6 months after, it was collected from electronic medical records.  \nRESULTS  \nIn a cohort of 1577 patients, those receiving US-guided FNB had significantly lower preoperative VAS pain scores (1.46 ± 2.49 vs 1.82 ± 2.59, P = 0.001), reduced  \n WJO  [https://www.wjgnet.com](https://www.wjgnet.com) 1 December 18, 2025  Volume 16  Issue 12   \nKlassov Y. US guided FNB for femur fracture  \nrehospitalization rates (0.99 ± 1.96 vs 1.46 ± 2.34, P \u003C 0.001), and lower mortality (16% vs 32%, P \u003C 0.001) compared to standard analgesia.  \nCONCLUSION  \nUS guided FNB is more effective for pain management compared with standard analgesia. This method was also found to significantly reduce the risk of morbidity in those patients.  \nKey Words: Hip fracture; Femur fracture; Femoral nerve block; Ultrasound guided; Analgesia protocol  \n©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.  \nCore Tip: We found that ultrasound (US) guided femoral nerve block (FNB) is a safe and effective method to assist in pain management prior to surgery in hip fractures. This method is beneficial in decreasing the risk of morbidity in hip fracture patients as seen in lower rates of rehospitalizations and decreased mortality. We have learned tha","cbCaitXyweCtvdpt","https://ap.wps.com/l/cbCaitXyweCtvdpt","pdf",496245,"English","# Abstract\n## Background\n## Aim\n## Methods\n## Results\n## Conclusion\n## Key Words\n## Core Tip\n## Citation","[{\"question\":\"What was the primary objective of the study?\",\"answer\":\"To determine whether ultrasound-guided femoral nerve blocks produce a significant difference in pain scores compared with the standard analgesia protocol.\"},{\"question\":\"How was pain measured in this retrospective cohort?\",\"answer\":\"Pain was assessed from electronic medical records using the visual analogue scale (VAS) pre-surgery and at 12 and 24 hours post-surgery.\"},{\"question\":\"What outcomes improved with ultrasound-guided femoral nerve blocks?\",\"answer\":\"Compared with standard analgesia, patients receiving ultrasound-guided FNB had lower preoperative VAS pain scores, lower rehospitalization rates, and lower mortality.\"}]","Ultrasound guided femoral nerve blocks as a compulsory pain protocol in femoral neck fractures | PDF",1790567676,25]