Abstract:Objective: To focus on the effects of percutaneous transforaminal endoscopic discectomy (PTED) combined with acupotomy on the walk stability for the patients with lumbar disc herniation and the structural changes of multifidus muscle (MM). Method: From September 2020 to September 2021, 104 patients with lumbar disc herniation (LDH) in the department of Orthopedics, Rehabilitation Medicine and Acupuncture of Traditional Chinese Medicine Unit of The Six Medical Center of Chinese PLA General Hospital were included in the study and were randomly divided into 2 groups to receive either PTED combined with acupotomy and exercise rehabilitation (study group, n=52, 3 fell off) or PTED combined with exercise rehabilitation (control group, n=52, 4 fell off). Walk stability indexs (absolute symmetry index, ASI), Japanese Orthopedic Association (JOA) scores and Cross-sectional Area (CSA) of fatty infiltration in MM under MRI imaging and were recorded 6 months after surgery and before surgery. Result: Before surgery, there were no significant difference in JOA between the two groups, p > 0.05. 6 months after surgery, JOA scores in both groups were significantly improved, p < 0.01, and JOA scores in the study group were significantly lower than those in the control group, p < 0.01; Meanwhile, the scores of JOA, subjective symptoms and ADL limit in JOA of the study group were significantly better than those in the control group, p < 0.05. Before and after treatment, the ASI of the step speed, stride length, mean angle of hip flexion and knee flexion in the study group were significantly decreased, p < 0.05, and there were no significant difference in ASI of stride length and mean angle of hip flexion in the control group; At L4-5 and L3-S1, CSA of fat infiltration in MM in the study group was significantly decreased, p < 0.01. Conclusion: For patients with LDH, the walking stability and overall mobility can be improved by PTED combined with acupotomy, which may be achieved by improving the paravertebral muscle structure of specific segments.