Abstract
Objective To compare the effect of ropivacaine in different concentrations under ultrasound guidance on lumbar muscle nerve blocking in elderly patients undergoing hip replacement surgery. Methods 60 elderly patients underwent hip replacement in our hospital over a period of April to December of 2019 were equally randomized into control and observation groups, with 30 each. Patients in the control group and observation group received 0.5% and 0.25% ropivacaine to block psoas muscle nerve, respectively. The anesthetic effect of ropivacaine at different concentrations was evaluated by time of sensory block onset and recovery and time of motor block onset and regression, blood pressure, heart rate, visual analogy scale, and postoperative nerve blocking degree. Results The onset time of sensory and motor block in the observation group was dramatically higher than that in the control group (P < 0.05), while the recovery time of sensory and motor was significantly shorter than that of the control group (P < 0.05). The heart rate in the observation group was notably lower than that in the control group, while the average blood pressure was remarkably higher (P < 0.05). After surgery, the degree of nerve block in the observation group was much lower compared with the control group (P < 0.05), while no marked difference in the visual analogue scale in the control group before and after surgical intervention was observed (P > 0.05). Conclusion The 0.25% ropivacaine method has distinctive advantages over 0.50% ropivacaine psoas nerve anesthesia in hip replacement surgery in elderly patients.
Highlights
Hip replacement remains one of the main options to relieve hip pain in elderly patients [1,2,3]
This study intends to use different concentrations of ropivacaine to conduct nerve block in elderly patients with hip replacement surgery under ultrasound guidance and to evaluate the effects of different concentrations of ropivacaine, which is aimed at providing a certain reference for clinical application
After no abnormal reaction occurred, the control group was injected with a total of 3.00 mL of 0.50% ropivacaine at a rate of 0.12 mL per second, while the observation group was 3.00 mL of ropivacaine with a concentration of 0.25%, and the needle was withdrawn after the injection
Summary
Hip replacement remains one of the main options to relieve hip pain in elderly patients [1,2,3]. The patient’s hip bone function impairment caused by fractures or deformities can be improved to a certain extent, thereby significantly improving their quality of life [4,5,6]. The BioMed Research International fluctuation of blood pressure during the operation can cause a variety of complications under the action of anesthetics, which seriously affects the patient’s quality of life, making the surgical intervention undesirable [11,12,13]. This study intends to use different concentrations of ropivacaine to conduct nerve block in elderly patients with hip replacement surgery under ultrasound guidance and to evaluate the effects of different concentrations of ropivacaine, which is aimed at providing a certain reference for clinical application. Due to the real-time monitoring of the whole process, it can effectively reduce and avoid complications
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