Clinical Study of Ultrasound-Guided Modified Percutaneous Endoscopic Interlaminar Discectomy Combined With Medical Chitosan in Lumbar 4-5 Disc Herniation Treatment.

OBJECTIVE

Percutaneous endoscopic lumbar discectomy (PELD) is a preferred minimally invasive surgery for lumbar disc herniation (LDH); however, postoperative recurrence, nerve root damage, and hyperesthesia continue to present key clinical challenges. Chitosan represents a novel preventive approach against postoperative complications. This study aimed to assess the clinical efficacy of ultrasound-guided percutaneous endoscopic interlaminar discectomy (PEID) plus medical chitosan in treating lumbar 4-5 disc herniation (L4-5 LDH).

METHODS

Totally, 200 L4-5 LDH patients were prospectively recruited and randomly divided into the control group (ultrasound-guided PEID) and observation group (ultrasound-guided PEID plus medical chitosan). Low back and leg pain and lumbar dysfunction were assessed preoperatively and postoperatively using Visual Analog Scale (VAS), Oswestry Disability Index (ODI), and Japanese Orthopaedic Association (JOA). Efficacy and postoperative complications were evaluated according to the modified MacNab criteria. Logistic regression analyses identified the risk factors. Mann-Whitney U test was used for inter-group comparisons, and the Kruskal-Wallis test for timepoint comparisons.

RESULTS

The two groups showed significant differences in pre-treatment Pfirrmann classification and operation time. As time progressed, patients exhibited reduced VAS and ODI scores and increased JOA scores postoperatively. Significant differences were observed in VAS, JOA, and ODI scores in the observation group at 2 weeks postoperatively. The observation group demonstrated superior treatment efficacy and a lower complication incidence than the control group. Age, disease course, and postoperative bleeding were independent risk factors affecting clinical efficacy of ultrasound-guided PEID plus chitosan.

CONCLUSION

Ultrasound-guided PEID plus medical chitosan reduces postoperative pain and perioperative complications, demonstrating superior clinical efficacy.