单通道非同轴脊柱内镜经椎间孔外入路(椎板外切迹)治疗极外侧椎间盘突出症的临床疗效观察OA

Objective To evaluate the clinical efficacy of uni-portal non-coaxial spinal endoscopic surgery via extraforaminal approach(external lamina notch)for treating far lateral lumbar disc herniation(FLLDH).Methods A retrospective analysis was conducted on 70 patients with FLLDH who underwent uni-portal non-coaxial spinal endoscopic surgery via the extraforaminal approach(external lamina notch)from May 2022 to May 2024.Clinical outcomes were evaluated by assessing lower back and leg pain,lumbar spine function,and overall therapeutic efficacy before and after the operation.Results Compared with before the operation,at 3 days and 3 months after the operation,the visual analogue scale(VAS)scores for the lower limbs,the VAS scores for the waist,the Oswestry disability index(ODI),the numerical rating scale(NRS)scores,and the Roland-Morris dysfunction questionnaire(RMDQ)scores of the patients significantly decreased,while the Japanese Orthopaedic Association(JOA)score significantly increased.The differences were statistically significant(P<0.05);according to the modified MacNab scoring criteria,the excellent and good rates at the last follow-up were 94.28%.Conclusion The uni-portal non-coaxial spinal endoscopic surgery through the extraforaminal approach(external lamina notch)for treating FLLDH can significantly alleviate patients'lower back and leg pain as well as their lower limb function.It has the advantages of small trauma,easy operation,high safety and good efficacy,and is worthy of clinical promotion and application.