[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100646553":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":15,"centralContacts":27,"locations":33,"responsibleParty":44,"collaborators":10,"id":46,"slug":47,"hasResults":48,"nctId":49,"briefTitle":50,"officialTitle":51,"acronym":52,"eligibilityCriteria":53,"healthyVolunteers":48,"sex":54,"minAge":55,"maxAge":10,"enrollmentInfo":56,"targetDuration":59,"studyType":60,"phases":10,"briefSummary":61,"conditions":62,"keywords":66,"overallStatus":73,"whyStopped":10,"lastUpdateSubmitDate":74,"lastUpdatePostDateStruct":75,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":83},{"fullName":5,"class":6},"Istinye University","OTHER",[8,12],{"label":9,"type":10,"description":11,"interventionNames":10},"Pre-Procedure Interscalene Block",null,"Participants undergoing arthroscopic rotator cuff repair who received an ultrasound-guided interscalene nerve block before surgical incision as part of the perioperative analgesia protocol.",{"label":13,"type":10,"description":14,"interventionNames":10},"Post-Procedure Interscalene Block","Participants undergoing arthroscopic rotator cuff repair who received an ultrasound-guided interscalene nerve block after completion of surgery as part of the perioperative analgesia protocol.",[16,19,22,25],{"name":17,"affiliation":5,"role":18},"Ali S. Kavaklı, Professor","STUDY_CHAIR",{"name":20,"affiliation":5,"role":21},"Onur Senyurt, MD","PRINCIPAL_INVESTIGATOR",{"name":23,"affiliation":5,"role":24},"Kaya Turan, MD, Assoc Prof","STUDY_DIRECTOR",{"name":26,"affiliation":5,"role":21},"Taylan Sahin, MD",[28],{"name":29,"role":30,"phone":31,"phoneExt":10,"email":32},"Kaya Turan, MD, FEBOT, Assoc Prof.","CONTACT","+905332937927","kaya.turan@istinye.edu.tr",[34],{"facility":35,"status":10,"city":36,"state":10,"zip":10,"country":37,"countryCode":10,"cosmosGeoPoint":38,"geoPoint":43,"contacts":10},"Istinye University Bahcesehir Liv Research and Training Hospital","Istanbul","Turkey (Türkiye)",{"type":39,"coordinates":40},"Point",[41,42],28.94966,41.01384,{"lat":42,"lon":41},{"type":45,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR","100646553","preoperative-versus-postoperative-interscalene-block-in-arthroscopic-rotator-cuff-repair-100646553",false,"NCT07689448","Preoperative Versus Postoperative Interscalene Block in Arthroscopic Rotator Cuff Repair","Pre-Procedure Versus Post-Procedure Administration of Interscalene Block in Arthroscopic Rotator Cuff Repair: Effects on Early Pain Control and Functional Outcomes","ISB-ARCR","Inclusion Criteria:\n\n* Adults aged 18 years or older.\n* Patients undergoing primary arthroscopic rotator cuff repair.\n* Presence of a repairable small-, medium-, or large-sized rotator cuff tear confirmed by clinical and imaging evaluation.\n* Receipt of an ultrasound-guided interscalene nerve block as part of perioperative pain management.\n* Ability to provide informed consent and comply with study follow-up requirements.\n\nExclusion Criteria:\n\n* Irreparable rotator cuff tears.\n* Partial-thickness rotator cuff tears not requiring repair.\n* Revision rotator cuff repair procedures.\n* Concomitant shoulder procedures that could substantially influence postoperative pain or functional outcomes (e.g., shoulder arthroplasty, fracture fixation).\n* Previous surgery on the affected shoulder.\n* Contraindications to interscalene nerve block, including local anesthetic allergy, infection at the injection site, or severe neurologic disease affecting the brachial plexus.\n* Chronic opioid use or opioid dependence before surgery.\n* Inability to complete study questionnaires or follow the postoperative rehabilitation protocol.\n* Missing baseline or follow-up data required for outcome assessment.","ALL","18 Years",{"count":57,"type":58},42,"ESTIMATED","6 Months","OBSERVATIONAL","This study is evaluating whether the timing of an interscalene nerve block affects pain control and recovery after arthroscopic rotator cuff repair surgery.\n\nAn interscalene block is commonly used to reduce pain after shoulder surgery. However, it is not known whether administering the block before surgery or after surgery provides better outcomes. Participants undergoing arthroscopic rotator cuff repair are assigned to receive the interscalene block either before the surgical incision or after completion of the procedure.\n\nThe study compares postoperative pain levels, opioid medication use, length of hospital stay, and ultrasound imaging quality during block administration between the two groups. Functional recovery is also assessed using patient-reported outcome measures during follow-up.\n\nThe investigators hypothesize that administration of the interscalene block before surgery may provide superior early pain control and reduce postoperative opioid requirements while maintaining similar functional outcomes compared with administration after surgery.",[63,64,65],"Rotator Cuff Tear Repair","Interscalene Blocks","Rotator Cuff Tears",[65,67,68,69,70,71,72],"Arthroscopic Rotator Cuff Repair","Interscalene Nerve Block","Regional Anesthesia","Postoperative Pain","Preemptive Analgesia","Pain Management","NOT_YET_RECRUITING","2026-07-07",{"date":76,"type":77},"2026-07-08","ACTUAL",{"date":79,"type":58},"2026-07-13",{"date":81,"type":58},"2026-10-20",{"name":5,"class":6},1]