Interscalene Block Versus Infraspinatus-Teres Minor Interfascial Plane Block for Shoulder Arthroscopy
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Ultrasound-Guided Interscalene Block, Ultrasound-Guided Infraspinatus-Teres Minor Interfascial Plane Block.
- Who it may be relevant to
- Registry conditions: Postoperative Pain, Shoulder Arthroscopic Surgeries, Diaphragmatic Dysfunction. Basic parameters: 18 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Comparison of the Effects of Interscalene Block and Infraspinatus-Teres Minor Interfascial Plane Block on Postoperative Analgesia and Diaphragmatic Function in Patients Undergoing Shoulder Arthroscopy.
Overview
This prospective randomized controlled study aims to compare the effects of interscalene block, infraspinatus-teres minor interfascial plane block, and a control group on postoperative analgesia and diaphragmatic function in patients undergoing shoulder arthroscopy. A total of 120 patients will be enrolled and allocated into three groups. Postoperative pain scores, opioid consumption, rescue analgesic requirements, and diaphragmatic function will be evaluated and compared among the groups. The study seeks to determine whether the infraspinatus-teres minor interfascial plane block can provide effective postoperative analgesia with less impact on diaphragmatic function compared with interscalene block.
Detailed description
Shoulder arthroscopy is associated with significant postoperative pain. Interscalene block is widely used for analgesia but may impair diaphragmatic function because of phrenic nerve involvement. The infraspinatus-teres minor interfascial plane block has been proposed as an alternative regional anesthesia technique that may provide adequate analgesia while preserving diaphragmatic function. This randomized controlled trial will include 120 adult patients undergoing elective shoulder arthroscopy. Participants will be randomized into three groups: interscalene block, infraspinatus-teres minor interfascial plane block, and control. Pain scores, opioid consumption, time to first rescue analgesia, diaphragmatic excursion measured by ultrasound, and block-related complications will be recorded and analyzed.
Interventions
- Procedure Ultrasound-Guided Interscalene Block
Ultrasound-guided interscalene brachial plexus block is performed before induction of anesthesia for postoperative analgesia in patients undergoing shoulder arthroscopy. The block is administered using ultrasound guidance according to institutional practice. - Procedure Ultrasound-Guided Infraspinatus-Teres Minor Interfascial Plane Block
Ultrasound-guided infraspinatus-teres minor interfascial plane block is performed before induction of anesthesia for postoperative analgesia in patients undergoing shoulder arthroscopy. The block is administered using ultrasound guidance according to institutional practice.
Primary outcome measures
- Postoperative Pain Intensity [Time frame: 0, 2,4, 6, 12, and 24 hours after surgery]
- Diaphragmatic Excursion [Time frame: 24 hours after surgery]
Eligibility criteria
Inclusion criteria
- Age between 18 and 65 years
- ASA physical status I-II
- Scheduled for elective shoulder arthroscopy
- No known allergy to study medications
- No psychiatric disorder
- No opioid dependence
- Ability to use patient-controlled analgesia (PCA) and complete VAS assessments
- No contraindication to peripheral nerve blocks
- Written informed consent obtained
Exclusion criteria
- Refusal to participate
- Uncontrolled hypertension
- Chronic pain or ongoing analgesic treatment
- Significant cardiac disease (coronary artery disease, arrhythmia, heart failure)
- Diabetes mellitus
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Double blind
- Primary purpose
- Treatment
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07670780 · 26-AKD-187