Preliminary Clinical Efficacy of Unilateral Biportal Endoscopic in the Treatment of Lumbar Spinal Stenosis
Objective:To investigate the preliminary clinical efficacy of unilateral biportal endoscopic(UBE)in the treat-ment of lumbar spinal stenosis.Methods:38 patients with single-segment lumbar spinal stenosis treated from May 2021 to May 2023 were included.The visual analogue scale(VAS)and Oswestry disability index(ODI)scores were evaluated in all patients preoperatively,postoperatively at 1 d,l month,3 months and 6 months.The modified MacNab criteria,the postoperative complications,the operation time and the postoperative ambulatory time were recorded.Plain radiographs obtained preoperatively and 6 months postoperatively were compared to analyze the intervertebral angle(IVA),percentage of slip,disc height index(DHI),and foraminal height index(FHI).Results:38 patients were enrolled in follow-up for 3 to 6 months,an average of(4.2±1.8)months.There was significant difference in VAS score and ODI score between preop-erative and postoperative time points(P＜0.05).The operation time was 136.3-162.7 min,an average of(128.4±7.4)min,and the postoperative ambulatory time was 4.6-1.2 d,an average of(4.2±1.3)d.There was one case of postoper-ative cerebrospinal fluid leakage,no incision infection and nerve root injury.At the last follow-up,the modified MacNab criteria were excellent in 24 patients,good in 12,fair in 2,poor in 0,the excellent and good rate was 94.7％.The IVA,the percentage of slip,the DHI and the FHI at 6-months follow-up were not statistically significant(P＞0.05).Conclusion:The early follow-up clinical efficacy of UBE is significant,which can safely and effectively perform spinal canal decompres-sion.It has the advantages of minimal trauma,fast recovery,avoiding spinal fusion,and not affecting spinal stability.
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