Abstract: Objective To explore the application effect of ultrasound-guided erector spinal muscle plane block(ESPB) in lumbar decompression and fusion internal fixation.Methods Sixty patients with lumbar decompression and fusion internal fixation in this hospital from January to April 2022 were selected and divided into two groups according to the random number table method,thirty cases in each group.The study group implemented the general anesthesia intubation under the ESPB intervention and the control group conducted the general anesthesia intubation.The intraoperative vital signs,total amount of anesthetic drugs use and operation time were recorded.The resting Visual analogue scale(VAS) scores of the incision at different postoperative time periods,and the proportion of remedial analgesic medication use within postoperative 48h and adverse reactions were recorded.Results There was no statistical difference in the vital signs,intraoperative situation,resting VAS scores of the incision at postoperative 36,48h and occurrence rate of adverse reactions at postoperative 48h between the two groups(P>0.05).Compared with the control group,the use amounts of intraoperative remifentanil in the study group were significant decreased(P<0.05).The resting VAS scores of the incision at postoperative 2,6,12,24h were reduced(P<0.05);the proportion of remedial analgesic drugs use at postoperative 48h were reduced(P＜0.05).Conclusion Ultrasound-guided ESPB can effectively improve the analgesia efficacy for the patients with lumbar decompression fusion and internal fixation,which is conducive to postoperative earlier recovery.

Key words: erector spinae plane block, lumbar decompression fusion and internal fixation, postoperative analgesia, enhanced recovery after surgery