Related Experiment Video
Updated: Jun 13, 2026
02:14
Full Endoscopic Interlaminar Approach for Paracentral L5-S1 Disc Herniation
Published on: April 14, 2023
Endoscopic-Assisted Peri-Root Anesthesia Provides Superior Intraoperative Analgesia Over Epidural Anesthesia in L5-S1
Hengrui Chang1, Yuanqing Niu2, Yiwen Zhang3
1Department of Spinal Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
Orthopaedic Surgery
|March 3, 2026
Summary
Endoscopic-assisted peri-root anesthesia (PA) significantly reduced intraoperative pain and motor block during lumbar discectomy compared to epidural anesthesia (EA). PA offers improved patient satisfaction and immediate neurological preservation.
Area of Science:
- Neurosurgery
- Anesthesiology
- Spinal Surgery
Background:
- Interlaminar endoscopic lumbar discectomy is effective for L5-S1 herniation.
- Intraoperative pain management under local anesthesia is a challenge.
- Conventional epidural anesthesia (EA) carries risks like motor block.
Purpose of the Study:
- To evaluate a novel endoscopic-assisted peri-root anesthesia (PA) technique.
- To compare PA with EA for L5-S1 disc herniation surgery.
- To assess analgesic precision, safety, and patient satisfaction.
Main Methods:
- Retrospective analysis of 132 patients undergoing interlaminar endoscopic surgery for L5-S1 disc herniation.
- Comparison between PA (n=65) and EA (n=67) groups.
- Evaluation of intraoperative pain, motor block, operative time, hospital stay, complications, and functional outcomes (VAS, ODI).
Main Results:
- The PA group experienced significantly lower intraoperative pain (median VAS: 2 vs. 2, p=0.005).
- No motor block occurred in the PA group versus 9.0% in the EA group (p=0.028).
- Patients in the PA group had 2.12 times higher odds of reporting better satisfaction (OR=2.12, p=0.018).
Conclusions:
- Endoscopic-assisted peri-root anesthesia (PA) demonstrates superior immediate neurological preservation.
- PA offers improved pain control and reduced motor block incidence.
- Further prospective studies are needed to confirm long-term efficacy and safety.
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