[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100651576":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":33,"centralContacts":40,"locations":44,"responsibleParty":46,"collaborators":44,"id":49,"slug":50,"hasResults":51,"nctId":52,"briefTitle":53,"officialTitle":54,"acronym":55,"eligibilityCriteria":56,"healthyVolunteers":51,"sex":57,"minAge":58,"maxAge":59,"enrollmentInfo":60,"targetDuration":44,"studyType":63,"phases":64,"briefSummary":66,"conditions":67,"keywords":70,"overallStatus":79,"whyStopped":44,"lastUpdateSubmitDate":80,"lastUpdatePostDateStruct":81,"startDateStruct":84,"completionDateStruct":86,"leadSponsor":88,"locationsCount":44},{"fullName":5,"class":6},"Izmir City Hospital","OTHER_GOV",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"SPENG Block","EXPERIMENTAL","Participants assigned to this group will receive an ultrasound-guided Shoulder Posterior Pericapsular Nerve Group (SPENG) block before general anesthesia for shoulder arthroscopy. A total of 20 mL of 0.25% bupivacaine with epinephrine 1:200,000 will be administered as a single injection between the posterior glenoid rim and the deep surface of the infraspinatus muscle.",[13],"Procedure: Shoulder Posterior Pericapsular Nerve Group (SPENG) Block",{"label":15,"type":16,"description":17,"interventionNames":18},"Posterior Suprascapular and Axillary Nerve Blocks","ACTIVE_COMPARATOR","Participants assigned to this group will receive ultrasound-guided posterior suprascapular and axillary nerve blocks before general anesthesia for shoulder arthroscopy. A total of 20 mL of 0.25% bupivacaine with epinephrine 1:200,000 will be administered, consisting of 10 mL for the posterior suprascapular nerve block and 10 mL for the axillary nerve block.",[19],"Procedure: Combined Posterior Suprascapular and Axillary Nerve Blocks",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"PROCEDURE","Shoulder Posterior Pericapsular Nerve Group (SPENG) Block","An ultrasound-guided single-injection posterior pericapsular block. With the participant in the lateral decubitus position and the operative shoulder uppermost, a high-frequency linear ultrasound transducer will be placed transversely immediately inferior to the posterior acromion. After identification of the humeral head, articular cartilage, infraspinatus muscle, and posterior glenoid rim, a block needle will be advanced in-plane in a medial-to-lateral direction. The needle tip will be positioned between the posterior glenoid rim and the deep surface of the infraspinatus muscle, and 20 mL of 0.25% bupivacaine with epinephrine 1:200,000 will be injected.",[9],[9],{"type":22,"name":28,"description":29,"armGroupLabels":30,"otherNames":31},"Combined Posterior Suprascapular and Axillary Nerve Blocks","wo ultrasound-guided nerve blocks will be performed. For the posterior suprascapular nerve block, the suprascapular nerve will be identified in the suprascapular notch region beneath the supraspinatus muscle, and 10 mL of 0.25% bupivacaine with epinephrine 1:200,000 will be administered. For the axillary nerve block, the posterior humeral circumflex artery will be identified using color Doppler in the quadrilateral space, and 10 mL of 0.25% bupivacaine with epinephrine 1:200,000 will be administered adjacent to the axillary nerve.",[15],[32],"Posterior Shoulder Block",[34,37],{"name":35,"affiliation":5,"role":36},"Murat KAYKAC, MD","PRINCIPAL_INVESTIGATOR",{"name":38,"affiliation":5,"role":39},"Derya ARSLAN YURTLU, Professor","STUDY_DIRECTOR",[41],{"name":35,"role":42,"phone":43,"phoneExt":44,"email":45},"CONTACT","+905330258450",null,"drmuratkaykac@gmail.com",{"type":36,"investigatorFullName":47,"investigatorTitle":48,"investigatorAffiliation":5,"oldNameTitle":44,"oldOrganization":44},"Murat Kaykaç","Anesthesiology and Reanimation Specialist","100651576","speng-block-versus-suprascapular-and-axillary-nerve-blocks-for-pain-after-shoulder-arthroscopy-100651576",false,"NCT07762417","SPENG Block Versus Suprascapular and Axillary Nerve Blocks for Pain After Shoulder Arthroscopy","Analgesic Efficacy of the Shoulder Posterior Pericapsular Nerve Group Block Versus Combined Posterior Suprascapular and Axillary Nerve Blocks for Shoulder Arthroscopy: A Randomized, Blinded, Non-Inferiority Trial","SPENG-RCT","Inclusion Criteria:\n\n* Age 18 to 70 years\n* American Society of Anesthesiologists (ASA) physical status I-III\n* Scheduled to undergo elective shoulder arthroscopy under general anesthesia\n* Able to understand the Numeric Rating Scale for pain assessment\n* Able and willing to provide written informed consent\n\nExclusion Criteria:\n\n* Known allergy or hypersensitivity to local anesthetics used in the study\n* Infection at the planned block injection site\n* Coagulopathy or ongoing anticoagulant therapy that cannot be appropriately interrupted for peripheral nerve block\n* Pre-existing neurological deficit affecting the operative upper extremity\n* Moderate or severe pulmonary disease\n* Known diaphragmatic dysfunction\n* Chronic opioid use\n* Chronic pain syndrome\n* Body mass index greater than 35 kg\u002Fm²\n* Pregnancy or breastfeeding\n* Inability to understand or reliably report Numeric Rating Scale pain scores\n* Inadequate sonographic window preventing safe performance of the allocated block technique before randomization","ALL","18 Years","70 Years",{"count":61,"type":62},60,"ESTIMATED","INTERVENTIONAL",[65],"NA","This prospective, randomized, patient- and assessor-blinded, single-center non-inferiority trial will compare the analgesic efficacy of the Shoulder Posterior Pericapsular Nerve Group (SPENG) block with combined posterior suprascapular and axillary nerve blocks in adults undergoing elective shoulder arthroscopy under general anesthesia. Both groups will receive the same total volume and concentration of local anesthetic. The primary outcome will be the highest resting Numeric Rating Scale pain score recorded during the first 24 postoperative hours. Secondary outcomes will include block performance time, sensory block success in suprascapular and axillary nerve territories, opioid consumption, time to rescue analgesia, motor function, diaphragmatic function, postoperative recovery quality, patient satisfaction, and block-related complications.",[68,69],"Postoperative Pain","Shoulder Arthroscopy",[71,72,73,74,75,76,77,78],"Diaphragm-sparing block","Postoperative analgesia","Regional anesthesia","Axillary nerve block","Suprascapular nerve block","Shoulder arthroscopy","Shoulder Posterior Pericapsular Nerve Group block","SPENG block","NOT_YET_RECRUITING","2026-08-12",{"date":82,"type":83},"2026-08-14","ACTUAL",{"date":85,"type":62},"2026-11-01",{"date":87,"type":62},"2027-06-15",{"name":5,"class":6}]