Application of Popliteal Sciatic Nerve Combined with Femoral Nerve Block in Knee Arthroscopy
Objective:To study the application of popliteal sciatic nerve combined with femoral nerve block in knee arthroscopy.Methods:A total of 60 patients who underwent knee arthroscopic surgery in People's Hospital of Anyuan County from January 2020 to June 2022 were selected and randomly divided into a nerve block group and an epidural group,with 30 patients in each group.Patients in the epidural group underwent surgery after continuous epidural anesthesia,and patients in the nerve block group underwent surgery after popliteal sciatic nerve combined with femoral nerve block anesthesia.The anesthesia effect was compared between the two groups.The heart rate(HR)and mean arterial pressure(MAP)were compared before anesthesia(T0),15 min after anesthesia(T1),60 min after anesthesia(T2),and at the end of operation(T3).The onset time and duration of sensory and motor nerve block were compared between the two groups.The active flexion Angle of knee joint at each time point after operation,the muscle strength of quadriceps femoris of the two groups,and the incidence of adverse reactions of the two groups were compared.Results:There was no significant difference in HR levels at T0,T1,T2 and T3 between the nerve block group and the epidural group(P＞0.05).There was no significant difference in MAP at T0 between nerve block group and epidural group(P＞0.05).At T1,T2 and T3,the MAP levels of patients in the nerve block group were higher than those in the epidural group,and the differences were statistically significant(P＜0.05);The onset time of sensory and motor nerve block in nerve block group was shorter than that in epidural group,and the duration of sensory and motor nerve block was longer than that in epidural group,and the differences were statistically significant(P＜0.05);At 1 day after operation,there was no significant difference in the knee joint active flexion Angle between the nerve block group and the epidural group(P＞0.05).The active flexion An-gle of the knee joint in the nerve block group was greater than that in the epidural group at 3 days and 7 days after operation,and the difference was statistically significant(P＜0.05);At 6 h and 24 h after operation,the quadriceps muscle strength scores of patients in the nerve block group were lower than those in the epidural group,and the differences were statistically significant(P＜0.05);There was no significant difference in the incidence of adverse reactions between the nerve block group(10.00%)and the epidural group(20.00%)(P＞0.05).Conclusion:Popliteal sciatic nerve combined with femoral nerve block anesthesia can reduce the stress response,shorten the on-set time of anesthesia,and prolong the duration of anesthesia in patients undergoing knee arthroscopic surgery.
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