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Ultrasound-guided Interscalene Block Versus Infraspinatus-Teres Minor Plane Block in Shoulder Arthroscopy

NCT07016386 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 46

Last updated 2025-07-23

No results posted yet for this study

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

Conditions

  • Pain
  • Pain Management
  • Pain Management in Postoperative Care

Interventions

PROCEDURE

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%).

PROCEDURE

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%).

Sponsors & Collaborators

  • Misr University for Science and Technology

    lead OTHER

Principal Investigators

  • Mohammed Hany Kamal, Prof. of anesthesia and pain · Misr University for Science and Technolog

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-06-15
Primary Completion
2026-01-20
Completion
2026-01-31

Countries

  • Egypt

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07016386 on ClinicalTrials.gov