[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"postoperative-pain-after-ambulatory-surgery\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:postoperative-pain-after-ambulatory-surgery":30},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":19,"enrollmentInfo":20,"targetDuration":4,"studyType":23,"phases":24,"briefSummary":26,"conditions":27,"keywords":4,"overallStatus":31,"whyStopped":4,"lastUpdateSubmitDate":32,"lastUpdatePostDateStruct":33,"startDateStruct":36,"completionDateStruct":38,"leadSponsor":40,"locationsCount":4},"100640621","phase-4-post-operative-spinal-block-duration-and-pain-relief-after-hip-replacement-surgery-comparing-single-shot-spinal-ropivacaine-and-bupivacaine-100640621",false,"NCT07631091","Post-Operative Spinal Block Duration and Pain Relief After Hip Replacement Surgery: Comparing Single-Shot Spinal Ropivacaine and Bupivacaine","Post-Operative Analgesia and Spinal Block Duration Following Total Hip Arthroplasties: Comparison of Single-Shot Intrathecal Ropivacaine and Bupivacaine in a Randomized Double-Blinded Controlled Study","ROBUTHA","Inclusion Criteria:\n\n* 18 - 80 years of age\n* Scheduled for a primary elective total hip arthroplasty\n* Patient must be a candidate for same day discharge\n* Informed consent understood and signed\n* Patient is 160 - 186 cm tall\n\nExclusion Criteria:\n\n* Scheduled bilateral THA\n* Contraindication to or failed spinal anesthesia\n* Allergy or contraindication to NSAIDs (e.g. chronic kidney disease)\n* Diabetes requiring insulin medication\n* Preoperative chronic use of illegal substances\n* Renal insufficiency (eGFR \\\u003C 60)\n* Unstable psychiatric conditions\n* Severe neurological disorder\n* Cognitive deficiencies preventing informed consent\n* Language barrier preventing completion of study\n* Pregnancy or breastfeeding\n* Chronic pain syndrome","ALL","18 Years","80 Years",{"count":21,"type":22},176,"ESTIMATED","INTERVENTIONAL",[25],"PHASE4","This study aims to determine whether isobaric ropivacaine is more suitable than isobaric bupivacaine for spinal anesthesia in outpatient total hip arthroplasty (THA). The study will evaluate whether ropivacaine allows faster recovery of sensory and motor function while still providing adequate surgical anesthesia and postoperative pain control. Additional aims are to assess the effects of the anesthetic technique on same-day discharge rates, postoperative recovery, urinary retention, opioid consumption, and patient satisfaction after outpatient THA.",[28,29,30],"Hip Osteoarthritis","Hip Arthroplasty Replacement","Postoperative Pain After Ambulatory Surgery","NOT_YET_RECRUITING","2026-06-02",{"date":34,"type":35},"2026-06-05","ACTUAL",{"date":37,"type":22},"2026-06",{"date":39,"type":22},"2028-05",{"name":41,"class":42},"University of Turku","OTHER"]