Effect of ultrasound-guided sciatic nerve block via lateral suprapopliteal approach on postoperative pain and motor function in elderly patients undergoing TKA
10.3969/j.issn.1672-8270.2025.07.015
- VernacularTitle:超声引导下经腘窝上外侧入路坐骨神经阻滞对老年膝关节置换术后疼痛及运动功能的影响
- Author:
Zihui SHI
1
;
Jing LI
;
Jing WANG
;
Xiujin ZHU
;
Bo LI
;
Wei YUE
Author Information
1. 山西医科大学麻醉学院 太原 030000
- Publication Type:Journal Article
- Keywords:
Sciatic nerve;
Ultrasound-guided;
Popliteal fossa;
nerve block;
Postoperative pain
- From:
China Medical Equipment
2025;22(7):77-81
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effect of ultrasound-guided sciatic nerve block via lateral suprapopliteal approach on postoperative pain and motor function in elderly patients undergoing total knee arthroplasty(TKA).Methods:A retrospective analysis was conducted on 83 patients who underwent TKA at our hospital from December 2021 to November 2024.Patients were divided into two groups based on postoperative analgesia methods:the control group(n=41)and the observation group(n=42).Both groups received the combined spinal-epidural.The observation group received the ultrasound-guided sciatic nerve block via lateral suprapopliteal approach combined with intravenous analgesics,and the control group only adopted intravenous analgesics.The general data,Visual Analog Scale(VAS)scores at different time points,first press time and number of the analgesic pump on vein,the time to first ambulation,Fugl-Meyer Assessment(FMA)score of lower limb and the incidence of adverse reactions between two groups were analyzed.Results:The VAS scores at the rests of 12 h,24 h,36 h,and 48 h,and at the motion after surgery in observation group were significantly lower than those in the control group,with statistically significant differences(t=3.124,11.617,12.886,4.474,5.235,12.187,5.028,5.119,P<0.05).The number of first press of the analgesic pump,the time to first ambulation,and the adverse reactions in observation group were significantly lower than those in control group,and the differences were significant(t=65.134,39.193,2.162,P<0.05).The time of first press of the analgesic pump at the 48th h after surgery,and the FMA scores at the 2nd week and 4th week after surgery in the observation group were significantly higher than those in the control group(t=21.192,3.786,3.626,P<0.05).Conclusion:The ultrasound-guided sciatic nerve block via lateral suprapopliteal approach combined with intravenous analgesics can effectively relieve the pain levels in elderly TKA patients,and decreases the medication usage of analgesic pump,and reduce the incidence of adverse reactions.
