Circumflex Nerve Blocks Versus Posterior Cord Nerve Blocks in Shoulder Arthroscopy

Bassant M. Abdelhamid

Status: Unknown

Conditions: Postoperative Pain

Treatments: Procedure: Axillary Nerve Block; Procedure: General anesthesia; Procedure: Suprascapular Nerve Block; Procedure: posterior cord block

Study type: Interventional

Funder types: Other

Identifiers

NCT04446403

S-10-2019

Details and patient eligibility

About

Shoulder arthroscopy is associated with severe postoperative pain. Traditionally, the interscalene approach to the brachial plexus has been employed to manage postoperative pain following shoulder surgery.To provide more complete shoulder joint analgesia, suprascabular nerve block (SSNB) was combined with block of the circumflex nerve which comes from the posterior cord of the brachial plexus that usually gives also upper subscapular, thoracodorsal, lower subscapular and radial nerves.

Full description

Aim of the work is to compare postoperative analgesic effect of ultrasound guided combined suprascapular and circumflex nerve blocks versus suprascapular nerve and posterior cord blocks at infraclavicular level .

Thirty four patients aged from 18-70 years old, with ASA physical status I-II-III and scheduled for shoulder surgeries will be included in the study. Patients will be randomly allocated using computer-generated table into one of two groups:

• Group circumflex → will undergo ultrasound guided SSN+circumflex.
• Group posterior cord → will undergo ultrasound guided SSN+posterior cord.

Enrollment: 30 estimated patients

Sex: All

Ages: 18 to 60 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• ASA I-II.-III
• Undergoing shoulder arthroscopy.

Exclusion criteria

• Patient refusal
• Known allergy to local anesthetics
• Bleeding disorders
• Inability to provide informed consent

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

---

30 participants in 2 patient groups

circumflex

Experimental group

Description:

patients will undergo ultrasound guided SSN+circumflex

Treatment:

Procedure: Axillary Nerve Block

Procedure: Suprascapular Nerve Block

Procedure: General anesthesia

posterior cord

Experimental group

Description:

patients will undergo ultrasound guided SSN+circumflex

Treatment:

Procedure: Suprascapular Nerve Block

Procedure: General anesthesia

Procedure: posterior cord block