Shoulder Anterior Capsular Block for Postoperative Analgesia in Arthroscopic Rotator Cuff Repair Surgery

Summary

Shoulder pain is frequently encountered in the medical field. Rotator cuff tears are the most common cause. Shoulder pain affects quality of life and delay rehabilitation programs.

Effective control of post operative pain is a cornerstone in the success of these surgeries. Regional anaesthesia is often favoured for shoulder surgery as it could effectively provide anaesthesia and postoperative analgesia. Additionally, the upper limb has multiple nerve targets that can be blocked. Ultrasound combined SSNB-ANB were described as an alternative to interscalene nerve block for shoulder surgeries equipotent pain relief and patient satisfaction as well as fewer complications due to the location of injection.

Ultrasound guided SHAC block is a motor sparing block which targets all nerves supplying shoulder consistently at two sites. It was validated in chronic shoulder pain patients. However, there is no sufficient evidence for this block in postoperative pain after shoulder surgery.

Conditions

• Arthroscopic Rotator Cuff Repair

Interventions

PROCEDURE

(SHAC) block

The shoulder anterior capsular block targets interfacial and pericapsular space. A 25-gauge 80-mm insulated stimulating needle will be used for injections and in-plane needling will be from lateral to medial side. After aspiration is negative, 10 ml of 0.5 % bupivacaine plus dexamethasone 4 mg as adjuvant will be injected in the interfacial plane. Once the injection into the fascial space is achieved, the operator can proceed towards the glenohumeral pericapsular space by crossing the subscapularis muscle with the needle and the second injection after negative aspiration will be 10 ml 0.5 % bupivacaine plus dexamethasone 4 mg in pericapsular space.

PROCEDURE

(SSNB-ANB) block

Suprascapular Nerve Block (SNB): Using an in-plane ultrasound guidance from the medial side, 10 mL of 0.5% bupivacaine plus dexamethasone 4 mg as adjuvant will be injected after contacting the lateral aspect of the supraspinous fossa and negative aspiration confirmed. The LA should spread beneath the supraspinatus, lifting up the muscle. Axillary Nerve Block (ANB): The ANB is performed from behind the patient with the patient seated. The axillary nerve will be identified within the quadrilateral space by placing high frequency linear probe (Sono site M turbo) parallel to the long axis of the humeral shaft. The nerve was identified next to the circumflex artery. The skin will be anesthetized with 1% lidocaine (3mL). 10 mL of 0.5% bupivacaine plus dexamethasone 4 mg will be injected against the surface of the humerus, just posterior and lateral to the artery after confirming negative aspiration.

Sponsors & Collaborators

• Zagazig University

  lead OTHER_GOV

Principal Investigators

• Shereen E. Abd Ellatif, MD · Anaesthesia, Intensive Care, and Pain Management Department. Faculty of Medicine, Zagazig University

• Sherif M. S. Mowafy, MD · Anaesthesia, Intensive Care, and Pain Management Department. Faculty of Medicine, Zagazig University

• Fatma M. Ahmed, MD · Anaesthesia, Intensive Care, and Pain Management Department. Faculty of Medicine, Zagazig University

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

21 Years

Max Age

65 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-06-01

Primary Completion

2026-01-01

Completion

2026-01-30

Countries

• Egypt

Study Locations