What question did this study set out to answer?

To evaluate the effectiveness of dual subsartorial block for analgesia in patients undergoing ACL reconstruction.

February 25, 2026

Dual Subsartorial Block: An Analgesic Technique Targeting the Popliteal Plexus of the Knee in Anterior Cruciate Ligament Reconstruction—A Case Series

Key Points

To evaluate the effectiveness of dual subsartorial block for analgesia in patients undergoing ACL reconstruction.
Assessed 8 patients undergoing anterior cruciate ligament reconstruction
Measured postoperative analgesia using visual analog scale
Monitored opioid consumption and motor function recovery
Most patients reported VAS scores below 4 for pain during rest and movement
Five patients required no rescue opioids
Six patients achieved a 5/5 MRC score for motor function

Abstract

This case series (n = 8) investigated the dual subsartorial block (DSB) for anterior cruciate ligament (ACL) reconstruction. DSB provided robust postoperative analgesia, with most patients reporting visual analog scale (VAS) scores below 4 (rest and movement) throughout the first 24 hours. Opioid consumption was exceptionally low, with 5 patients requiring no rescue opioids. Crucially, motor function was largely preserved: 6 patients achieved a 5/5 Medical Research Council (MRC) score, and 2 achieved 4/5. No block-related complications were observed. These findings strongly advocate DSB as a highly effective, motor-sparing regional anesthetic strategy, significantly optimizing patient recovery and reducing opioid burden post-ACL surgery.

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