A Comparative Study Between Anterior Glenoid Block With Sub-omohyoid Suprascapular Block Versus Interscalene Block in Shoulder Arthroscopy

Ain Shams University

Status: Completed

Conditions: Shoulder Pain

Treatments: Procedure: Glenoid nerve block combined with Sub-omohyoid Anterior Suprascapular nerve Block; Procedure: Interscalene brachial plexus block

Study type: Interventional

Funder types: Other

Identifiers

NCT06609590

FAMSU R143/2024

Details and patient eligibility

About

The patients will be randomized into 2 equal groups by a computer-generated random numbers table, named group A, B.

Group A: Patients will receive Anterior glenoid block combined with suprascapular nerve block.

Group B: Patients will receive conventional interscalene block.

In group A, the patient will be supine for anterior glenoid block.

The suprascapular nerve will be identified as it branch off from the superior trunk and will be traced until it courses beneath the inferior belly of the omohyoid muscle.

In group B, interscalene brachial plexus block will be performed.

The primary outcomes will be as follows: (1) 11-point (0-10) numeric rating scale (NRS) pain score immediately before surgery starts and after surgery; (2) degree of preserved diaphragmatic function (DPDF): the ratio of postoperative to pre-block (baseline) diaphragmatic excursion amplitude will be assessed in the holding area using a curvilinear probe (Sono Site, Transportable fuji M-turbo ultrasound system).;(3) degree of preserved handgrip strength (DPHS): the ratio of postoperative to pre-block (baseline) handgrip strength (the maximal force patients exerted when instructed to squeeze the dynamometer handles as tightly as feasible). Measurements will be done before surgery, immediately postoperative, 4, 8, and 24 hours postoperatively.

And (4) Recording of the complications which are: Hematoma, nerve injury, allergy to any of the used drugs.

Enrollment: 60 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Patients American Society of anesthesiologists' physical status (ASA) I to II.
2. Aged 18 to 65 years.
3. Both sexes.
4. Patients scheduled for shoulder arthroscopy.

Exclusion criteria

1. Patient refusal
2. ASA physical status III or more.
3. Patients with known allergy to any of the study drugs.
4. Infection at the site of injection.
5. Patients with history of cardiovascular disease.
6. Patients with renal disease.
7. Patients with hepatic disease.
8. Patients with neuromuscular disease.
9. Presence of any coagulopathy.
10. Chronic opioid, gabapentin or pregabalin use.
11. Patients with history of any psychiatric disorder.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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60 participants in 2 patient groups

Group A

Experimental group

Description:

Patients will receive Anterior glenoid block combined with suprascapular nerve block.

Treatment:

Procedure: Glenoid nerve block combined with Sub-omohyoid Anterior Suprascapular nerve Block

Group B

Experimental group

Description:

The patients will Interscalene brachial plexus block.

Treatment:

Procedure: Interscalene brachial plexus block