CASE REPORT
Year : 2022  |  Volume : 16  |  Issue : 4  |  Page : 457-459

Selective Suprascapular and Axillary nerve (SSAX) block – A diaphragm sparing regional anesthetic technique for shoulder surgeries: A case series


Department of Anaesthesiology, SRM Medical College Hospital and Research Institute, Chennai, Tamil Nadu, India

Correspondence Address:
Ravi Saravanan
33/173, F1 Flat, B Block, Royal Homes, Eswari Nagar, Selaiyur, East Tambaram, Chennai, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/sja.sja_782_21

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Interscalene block, the gold standard for shoulder surgeries is inevitably associated with phrenic nerve palsy, even at low volumes. The major innervation of the shoulder joint is by suprascapular nerve and axillary nerve. Suprascapular nerve block has been used commonly for postoperative analgesia in shoulder surgeries done under GA. Combining axillary block with suprascapular nerve block was found to provide superior analgesia when compared to suprascapular block alone. Selective Suprascapular and Axillary nerve (SSAX) block provides effective analgesia in shoulder surgeries without causing diaphragm palsy, but has limited published literature. We performed ultrasound guided suprascapular block in the supraspinous fossa (posterior approach) using 10 ml of 0.25% Ropivacaine and axillary block in the quadrangular space using 6ml of 0.25% Ropivacaine before administration of general anaesthesia (GA) in 4 cases. Among four cases, 2 were closed shoulder manipulation with intra-articular steroid injection for periarthritis, 1 was closed reduction and K-wire fixation for chronic shoulder subluxation and the 4th was Latarjet procedure for recurrent shoulder dislocation. All patients received paracetamol 1g at the end of the procedure and every 6 h postoperatively. No patient experienced pain during recovery and the analgesia lasted for a mean duration of 347.5 minutes. Tramadol was required for rescue analgesia in only one patient (Latarjet surgery). We found that SSAX block provided effective analgesia in all patients, but needs randomized controlled trials with larger sample size comparing with interscalene block.


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