[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100621423":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":17,"centralContacts":24,"locations":34,"responsibleParty":49,"collaborators":17,"id":53,"slug":54,"hasResults":55,"nctId":56,"briefTitle":57,"officialTitle":58,"acronym":59,"eligibilityCriteria":60,"healthyVolunteers":55,"sex":61,"minAge":62,"maxAge":63,"enrollmentInfo":64,"targetDuration":17,"studyType":67,"phases":68,"briefSummary":70,"conditions":71,"keywords":73,"overallStatus":36,"whyStopped":17,"lastUpdateSubmitDate":76,"lastUpdatePostDateStruct":77,"startDateStruct":80,"completionDateStruct":82,"leadSponsor":84,"locationsCount":85},{"fullName":5,"class":6},"Bursa City Hospital","OTHER_GOV",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Group QIPB","ACTIVE_COMPARATOR","Participants in this arm will receive an ultrasound-guided Quadro-Iliac Plane Block. The block will be performed at the end of surgery, before extubation, with the patient in the prone position under standard sterilization conditions. A convex ultrasound probe will be placed at the level where the quadratus lumborum muscle (QLM) attaches to the iliac crest to visualize the erector spinae muscle (ESM) and the underlying QLM.\n\nThe block location will be confirmed by injecting 2 mL of isotonic solution at the QLM-iliac crest junction. Subsequently, 20 mL of 0.25% bupivacaine will be injected, and the spread of the local anesthetic between the ESM and QLM will be observed under ultrasound guidance. The block will be performed bilaterally with a total volume of 40 mL.",[13],"Procedure: Quadro-Iliac Plane Block",{"label":15,"type":16,"description":17,"interventionNames":17},"Group Control","NO_INTERVENTION",null,[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":17},"PROCEDURE","Quadro-Iliac Plane Block","Ultrasound-guided regional anesthesia technique performed between the erector spinae muscle and the quadratus lumborum muscle at the iliac crest level.",[9],[25,30],{"name":26,"role":27,"phone":28,"phoneExt":17,"email":29},"Mursel Ekinci, Assoc prof,MD","CONTACT","+905067137596","drmurselekinci@gmail.com",{"name":31,"role":27,"phone":32,"phoneExt":17,"email":33},"Merih Yıldız Eglen, MD","+905059340629","meriheg@yahoo.com",[35],{"facility":5,"status":36,"city":37,"state":17,"zip":38,"country":39,"countryCode":17,"cosmosGeoPoint":40,"geoPoint":45,"contacts":46},"RECRUITING","Bursa","16110","Turkey (Türkiye)",{"type":41,"coordinates":42},"Point",[43,44],29.06013,40.19559,{"lat":44,"lon":43},[47],{"name":48,"role":27,"phone":32,"phoneExt":17,"email":33},"Merih Yildiz Eglen, MD",{"type":50,"investigatorFullName":51,"investigatorTitle":52,"investigatorAffiliation":5,"oldNameTitle":17,"oldOrganization":17},"PRINCIPAL_INVESTIGATOR","Merih Yıldız Eglen","Principal Investigator, MD","100621423","us-guided-quadro-iliac-plane-block-for-postoperative-analgesia-after-lumbar-instrumentation-100621423",false,"NCT07370428","US-Guided Quadro-Iliac Plane Block for Postoperative Analgesia After Lumbar Instrumentation","Evaluation of the Effectiveness of Ultrasound-Guided Quadro-Iliac Plane Block in Postoperative Analgesia Management Following Lumbar Instrumentation Surgery","QIPB","Inclusion Criteria:\n\n* Classified as American Society of Anesthesiologists (ASA) physical status I-III\n* Scheduled for elective lumbar instrumentation surgery\n* Surgery performed under general anesthesia\n* Provision of written informed consent\n\nExclusion Criteria:\n\n* Use of anticoagulant or antiplatelet medications\n* Presence of bleeding diathesis or coagulation disorders\n* Known allergy or hypersensitivity to local anesthetics or opioid medications\n* Infection at the planned block site\n* Alcohol or drug dependence\n* Cognitive impairment preventing reliable pain assessment using the NRS\n* Pregnancy or lactation\n* History of previous lumbar spine surgery\n* Diabetes mellitus\n* Renal or hepatic impairment","ALL","18 Years","65 Years",{"count":65,"type":66},80,"ESTIMATED","INTERVENTIONAL",[69],"NA","Lumbar instrumentation surgery is associated with significant postoperative pain. This study evaluates the analgesic effectiveness of the ultrasound-guided Quadro-Iliac Plane Block in patients undergoing lumbar instrumentation surgery, aiming to assess the efficacy of this newly developed technique for postoperative pain management.",[72],"Postoperative Pain",[21,74,75],"Lumbar Instrumentation Surgery","Pain Management","2026-03-05",{"date":78,"type":79},"2026-03-06","ACTUAL",{"date":81,"type":79},"2026-01-20",{"date":83,"type":66},"2026-07-01",{"name":5,"class":6},1]