Abstract: Objective To observe the application of multimodal analgesia (MA) in lower extremity orthopedic surgery (LEOS) for patients with cerebral palsy (CP). Methods 100 CP patients following spasm undergoing LEOS under combined general anesthesia were randomly assigned into group C (n=50) and group M (n=50). In group M, the methods including a small dose of intravenous ketamine (0.25 mg/ kg) 15 minutes before skin incision, 0.25% ropivacaine hydrochloride in surgical area with infiltration anesthesia just before skin incision, and an intravenous infusion of sufentanil (0.05 μg/kg/h) combined with remifentanil (0.2 μg/kg/min) were performed. In group C, the methods mentioned above were not performed. The intravenous analgesia pump for single-use was prescribed for the patients in both groups. The postoperative analgesic effect (PAE) and side effects were observed. Results 4 dropped in group C. PAE in group M was significantly superior to that in group C (P<0.05), and the doctors as well as the caretakers for the patients were more satisfactory with the outcome (P<0.001). There was no significantly difference in the side effects between two groups (P>0.05). Conclusion MA could increase PAE in LEOS for CP patients following spasm and the safety was not influenced.

Key words: multimodal analgesia, cerebral palsy, lower extremity orthopedic surgery