[Effectiveness analysis of single-incision treatment for adjacent two-segmental lumbar disc herniation using uni-portal non-coaxial spinal endoscopic surgery].

Objective: To investigate the feasibility and effectiveness of uni-portal non-coaxial spinal endoscopic surgery (UNSES) via a single incision for the treatment of adjacent two-segmental lumbar disc herniation (LDH). Methods: A retrospective analysis was performed on 33 adjacent two-segmental LDH patients treated with single-incision UNSES between June 2023 and May 2025, including 18 males and 15 females, with a mean age of 55.7 years (range, 28-74 years) and a mean disease duration of 11.2 months (range, 3-36 months). There were 4 cases of L Results: The operation time was 70-126 minutes, with an average of 84.8 minutes; the incision length was 1.8-2.4 cm, with an average of 2.1 cm; the fluoroscopy frequency was 1-4 times, with an average of 2.2 times; and the hospital stay was 5-12 days, with an average of 7.6 days. All patients were followed up 6-24 months, with an average of 14.1 months. The incidence of complications was 6.1% (2/33), including 1 case of dural tear (<4 mm) required no suture and presented no cerebrospinal fluid leakage, and 1 case complete inferior articular process resection had no obvious low back pain during follow-up. No myeloid hypertension-like syndrome, nerve root injury, cerebrospinal fluid leakage, or intervertebral space infection occurred in other patients. VAS score of low back and leg pain and ODI at each time point after operation were lower than those before operation, and further decreased with time, and the differences between different time points were significant ( Conclusion: Single-incision UNSES has the advantages of small trauma, high safety, flexible operation, and extensive decompression, which can effectively complete the removal of two adjacent segments herniated disc, and the effectiveness is satisfactory.