Abstract： Objective： To observe the efficacy and safety of warming and unblocking scraping combined with conventional therapy in the treatment of residual symptoms after lumbar fusion and internal fixation surgery. Methods： A total of 72 patients with residual symptoms including pain and limited mobility after lumbar fusion and internal fixation surgery， who were treated at the First Department of Orthopedics， the Second Affiliated Hospital of Guangzhou University of Chinese Medicine， from October 2023 to May 2024， were enrolled. The patients were divided into a control group and a treatment group using a random number table method， with 36 cases in each group. The control group received routine postoperative care， including anti-infection measures， analgesia medications， postural guidance，and rehabilitation training. The treatment group received additional warming and unblocking scraping on the basis of the routine care. Overall therapeutic efficacy was assessed at 1 month postoperatively. The two groups were compared in terms of Visual Analogue Scale（ VAS） scores for low back pain and lower limb pain，Japanese Orthopaedic Association （JOA） scores，and grade of lower limb numbness at four time points：before treatment，on day 3 and day 7 of treatment，and at 1 month postoperatively. Results：The clinical efficacy of the treatment group was superior to that of the control group （P＜0.05）. The overall comparisons of VAS scores for low back pain and lower limb pain，as well as JOA scores，between the two groups at the four time points all showed statistically significant differences （P＜ 0.05）. VAS scores for low back pain and lower limb pain in the two groups showed a decreasing trend over the treatment period （P＜0.05），while JOA scores in the two groups showed an increasing trend over the same period （P＜0.05） . On day 3 of treatment，VAS scores for both low back pain and lower limb pain in the two groups decreased compared with those before treatment （P＜0.05）， and JOA scores in the two groups increased compared with those before treatment （P＜0.05） . On day 7 of treatment， VAS scores for lower limb pain in the two groups， as well as VAS scores for low back pain in the treatment group， decreased compared with those on day 3 of treatment （P＜0.05）， and JOA scores in the two groups increased compared with those on day 3 of treatment （P＜0.05）. At 1 month postoperatively， VAS scores for both low back pain and lower limb pain in the two groups decreased compared with those on day 7 of treatment （P＜0.05），and JOA scores in the two groups increased compared with those on day 7 of treatment （P＜0.05）. At day 3， day 7 of treatment， and 1 month postoperatively， the treatment group showed significantly lower VAS scores for both low back pain and lower limb pain，as well as significantly higher JOA scores， compared with the control group at the corresponding time points （P＜0.05）. The overall comparisons of the grade of lower limb numbness between the two groups at the four time points all showed statistically significant differences （P＜ 0.05）. The grade of lower limb numbness in both groups showed a decreasing trend over the treatment period（ P＜0.05）. At day 3 and day 7 of treatment and 1 month postoperatively，the treatment group showed significantly lower grades of lower limb numbness compared to the control group at the corresponding time points（ P＜0.05）. Conclusion：Warming and unblocking scraping combined with conventional therapy can effectively alleviate residual symptoms and improve lumbar function after lumbar fusion and internal fixation surgery.