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Ultrasound-guided Interscalene Block Versus Infraspinatus-Teres Minor Plane Block in Shoulder Arthroscopy
Sponsor: Misr University for Science and Technology
Summary
This study aims to compare the efficacy and safety of ultrasound-guided Interscalene block (ISB) versus Infraspinatus-Teres minor (ITM) interfacial plane block in shoulder arthroscopic surgery. A prospective, randomized clinical trial will be conducted with 46 patients. Approval was obtained from the Medical Ethics Committee (2022/0126), and written informed consent will be collected from all participants. Patients aged 20-70, ASA I-II, scheduled for arthroscopic shoulder surgery will be divided before the induction of general anesthesia (GA) into two groups: Group A: will receive the ultrasound guided ISB technique with a 15ml solution of 7.5ml lidocaine 2% and 7.5ml bupivacaine 0.5% be injected between the anterior and middle scalene muscles. Group B: will receive the ultrasound guided ITM block with the same anesthetic solution be injected between the infraspinatus and teres minor muscles. Researchers will examine the following outcomes; 1. Primary outcome measure: Efficacy of analgesia by Pain score; will be measured by Numerical Rating Scale (NRS) score (0=no pain,1-3=mild,4-6=moderate,7-9=sever,10=most sever) at postoperative 12 hour. 2. Secondary outcome measures: 1. Duration of analgesia, starting from recovery from general anesthesia (GA) to 1st time giving the patient rescue analgesia ( measured by NRS pain score at 0, 6 ,12, 18 and 24 postoperative hours) 2. Risk of complications from techniques 3. Patient satisfaction after surgery. 4. Rescue analgesic consumption 5. Hemodynamics monitoring; measurements of heart rate and mean arterial blood pressure before induction of anesthesia and every 15 minutes during surgery till end of surgery
Official title: Ultrasound-guided Interscalene Block (ISB) Versus Infraspinatus-Teres Minor (ITM) Interfacial Plane Block in Shoulder Arthroscopic Surgery
Key Details
Gender
All
Age Range
20 Years - 60 Years
Study Type
INTERVENTIONAL
Enrollment
46
Start Date
2025-06-15
Completion Date
2026-01-31
Last Updated
2025-07-23
Healthy Volunteers
Yes
Interventions
Group A: will receive an ultrasound-guided interscalene block (ISB)
Group A: will receive an ultrasound-guided interscalene block (ISB) using a 15ml mixture of lidocaine (7.5ml 2%) and bupivacaine (7.5ml 0.5%).
Group B:will receive an ultrasound-guided infraspinatus-teres minor (ITM) interfacial plane block
Group B:will receive an ultrasound-guided infraspinatus-teres minor (ITM) interfacial plane block using a 15ml mixture of lidocaine (7.5ml 2%) and bupivacaine (7.5ml 0.5%).
Locations (1)
Souad Kafafi University Hospital (SKUH), Faculty of medicine, Misr University for Science and Technology (MUST)
Giza, Giza Governorate, Egypt