[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100620204":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":25,"centralContacts":30,"locations":40,"responsibleParty":54,"collaborators":25,"id":58,"slug":59,"hasResults":60,"nctId":61,"briefTitle":62,"officialTitle":63,"acronym":25,"eligibilityCriteria":64,"healthyVolunteers":60,"sex":65,"minAge":66,"maxAge":67,"enrollmentInfo":68,"targetDuration":25,"studyType":71,"phases":72,"briefSummary":74,"conditions":75,"keywords":77,"overallStatus":42,"whyStopped":25,"lastUpdateSubmitDate":81,"lastUpdatePostDateStruct":82,"startDateStruct":85,"completionDateStruct":87,"leadSponsor":89,"locationsCount":90},{"fullName":5,"class":6},"Bursa City Hospital","OTHER_GOV",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Erector Spinae Plane Block (ESPB)","ACTIVE_COMPARATOR","Participants in this arm will receive an ultrasound-guided Erector Spinae Plane Block at the end of surgery, before extubation, with the patient in the prone position under standard sterilization conditions. The block will be performed bilaterally as part of a standardized multimodal postoperative analgesia protocol following lumbar instrumentation surgery.",[13],"Procedure: Erector Spinae Plane Block",{"label":15,"type":10,"description":16,"interventionNames":17},"Quadro-Iliac Plane Block (QIPB)","Participants in this arm will receive an ultrasound-guided Quadro-Iliac Plane Block at the end of surgery, before extubation, with the patient in the prone position under standard sterilization conditions. The block will be performed bilaterally as part of a standardized multimodal postoperative analgesia protocol following lumbar instrumentation surgery.",[18],"Procedure: Quadro-Iliac Plane Block",[20,26],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","Erector Spinae Plane Block","An ultrasound-guided Erector Spinae Plane Block will be performed at the end of surgery, before extubation, with the patient in the prone position under standard sterilization conditions. The ultrasound probe will be placed in the parasagittal plane at the level corresponding to the surgical site to visualize the transverse process and erector spinae muscle. Following confirmation of correct needle placement with 2 mL of normal saline, 20 mL of 0.25% bupivacaine will be injected into the fascial plane deep to the erector spinae muscle. The block will be performed bilaterally, with a total volume of 40 mL, as part of a standardized multimodal postoperative analgesia protocol.",[9],null,{"type":21,"name":27,"description":28,"armGroupLabels":29,"otherNames":25},"Quadro-Iliac Plane Block","An ultrasound-guided Quadro-Iliac Plane 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 attaches to the iliac crest to visualize the erector spinae muscle and the underlying quadratus lumborum muscle. The block location will be confirmed with the injection of 2 mL of isotonic solution, followed by the injection of 20 mL of 0.25% bupivacaine. The spread of the local anesthetic between the erector spinae muscle and quadratus lumborum muscle will be observed under ultrasound guidance. The block will be performed bilaterally, with a total volume of 40 mL, as part of a standardized multimodal postoperative analgesia protocol.",[15],[31,36],{"name":32,"role":33,"phone":34,"phoneExt":25,"email":35},"Merih Yildiz Eglen, MD","CONTACT","+905059340629","meriheg@yahoo.com",{"name":37,"role":33,"phone":38,"phoneExt":25,"email":39},"Mursel Ekinci, Assoc prof MD","+905067137596","drmurselekinci@gmail.com",[41],{"facility":5,"status":42,"city":43,"state":25,"zip":44,"country":45,"countryCode":25,"cosmosGeoPoint":46,"geoPoint":51,"contacts":52},"RECRUITING","Bursa","16110","Turkey (Türkiye)",{"type":47,"coordinates":48},"Point",[49,50],29.06013,40.19559,{"lat":50,"lon":49},[53],{"name":32,"role":33,"phone":34,"phoneExt":25,"email":35},{"type":55,"investigatorFullName":56,"investigatorTitle":57,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"PRINCIPAL_INVESTIGATOR","Merih Yıldız Eglen","principal investigator,MD","100620204","erector-spinae-plane-block-vs-quadro-iliac-plane-block-after-lumbar-instrumentation-surgery-100620204",false,"NCT07354581","Erector Spinae Plane Block vs Quadro-Iliac Plane Block After Lumbar Instrumentation Surgery","Comparison of Ultrasound-Guided Erector Spinae Plane Block and Quadro-Iliac Plane Block for Postoperative Analgesia Management Following Lumbar Instrumentation Surgery","Inclusion Criteria:\n\n* Age between 18 and 65 years\n* Classified as American Society of Anesthesiologists physical status I-III\n* Scheduled for elective lumbar instrumentation surgery under general anesthesia\n* Provision of written informed consent\n\nExclusion Criteria:\n\n* Use of anticoagulant medications or presence of bleeding diathesis\n* Known allergy or hypersensitivity to local anesthetics or opioid drugs\n* Infection at the planned block site\n* Alcohol or drug dependence\n* Cognitive impairment preventing reliable pain assessment\n* Pregnancy or lactation\n* History of previous lumbar spine surgery\n* Diabetes mellitus\n* Renal or hepatic insufficiency","ALL","18 Years","65 Years",{"count":69,"type":70},80,"ESTIMATED","INTERVENTIONAL",[73],"NA","Lumbar instrumentation surgery is associated with significant postoperative pain. This study compares the postoperative analgesic effectiveness of ultrasound-guided Erector Spinae Plane Block and Quadro-Iliac Plane Block in patients undergoing lumbar instrumentation surgery.",[76],"Pain, Postoperative",[78,79,80,27],"Lumbar instrumentation","Postoperative pain management","Erector Spinae Block","2026-03-26",{"date":83,"type":84},"2026-03-31","ACTUAL",{"date":86,"type":84},"2026-01-20",{"date":88,"type":70},"2026-07-01",{"name":5,"class":6},1]