• Jie Hao, Jiaqi Cheng, Huawei Xue, and Feng Zhang.
• Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, China.
• Pain Pract. 2022 Feb 1; 22 (2): 191-199.

ObjectiveThe purpose of this research was to investigate the outcomes between unilateral biportal endoscopic discectomy (UBE) and percutaneous endoscopic lumbar discectomy (PELD) for the single L4/5-level lumbar disk herniation (sLDH).MethodsFrom January 2018 to January 2021, a total of 40 patients with sLDH were retrospectively analyzed in this study. All the patients had received spinal surgeries in Affiliated Hospital of Nantong University and Affiliated Nantong Hospital 3 of Nantong University. Among them, 20 patients were treated with PELD (PELD group), and 20 patients were treated with UBE discectomy (UBE group). Postoperative length of hospital stay, estimated blood loss, operation time, and clinical complications of the patients were compared between the two groups. The visual analog scale (VAS) and Oswestry Disability Index (ODI) were measured before surgeries and 3 days, 1, and 6 months after surgeries.ResultsCompared with the UBE group, the PELD group had obviously less intraoperative blood loss, shorter operative time, and shorter hospital stay. The differences in the rate of complications were not statistically significant between the two groups. The VAS score and the ODI score of the two groups had a great reduction after operation. In addition, both the groups had satisfactory clinical outcome; the VAS score and ODI of the PELD group decreased more obviously.ConclusionThe UBE for sLDH yielded similar clinical outcomes to PELD as minimally invasive surgeries; however, PELD is superior to UBE in terms of intraoperative blood loss, operative time, postoperative hospitalization, and short-term postoperative pain relief. The advantages and disadvantages of the two surgeries should be circumspectly balanced when evaluating a patient for a minimally invasive surgery for sLDH, selecting the most appropriate surgical method for patients.© 2021 World Institute of Pain.

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