초음파 유도 하 일회성 넙다리신경블록이 슬관절 전치환술 후 통증에 미치는 영향: 0.25% Levobupivacaine과 0.5% Levobupivacaine 주입의 비교
Effect of Single-injection Femoral Nerve Block Using Real-time Ultrasound on the Postoperative Pain after Bilateral Total Knee Arthroplasty: 0.25% vs 0.5% Levobupivacaine
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Background: The purpose of this study was to compare the analgesic effect of 0.25% and 0.5% levobupivacaine for real time ultrasound guided single-injection femoral nerve block for the patients who are undergoing bilateral total knee arthroplasty (TKA). Methods: Femoral nerve block was done to all patients with 20 ㎖ of 0.9% normal saline on one leg and 20 ㎖ of 0.25% levobupivacaine on the other leg for group Ⅰ (n = 16) and 0.5% levobupivacaine for group Ⅱ (n = 15) with 1：200,000 epinephrine and using real-time ultrasound and a nerve stimulator. The data concerning the verbal numerical rating scale (VNRS) for each leg, the consumption of the intravenous patient-controlled analgesia (IV PCA) and the demands for the additional analgesics was collected at 0, 1, 6, 12, 24 and 48 hours after the operation. Results: The legs on which femoral nerve block was done with levobupivacaine showed a lower VNRS score than the legs with normal saline in either group Ⅰ or group Ⅱ. The VNRS scores between the two legs, the consumption of the Ⅳ PCA and the demand for additional analgesics showed no significant differences between the groups. Conclusions: Our results demonstrate that single-injection femoral nerve block using real-time ultrasound with either 0.25% levobupivacaine or 0.5% levobupivacaine 20 ㎖ provides a good effect for the postoperative pain control after TKA.
Abstract
Background: The purpose of this study was to compare the analgesic effect of 0.25% and 0.5% levobupivacaine for real time ultrasound guided single-injection femoral nerve block for the patients who are undergoing bilateral total knee arthroplasty (TKA). Methods: Femoral nerve block was done to all patients with 20 ㎖ of 0.9% normal saline on one leg and 20 ㎖ of 0.25% levobupivacaine on the other leg for group Ⅰ (n = 16) and 0.5% levobupivacaine for group Ⅱ (n = 15) with 1：200,000 epinephrine and using real-time ultrasound and a nerve stimulator. The data concerning the verbal numerical rating scale (VNRS) for each leg, the consumption of the intravenous patient-controlled analgesia (IV PCA) and the demands for the additional analgesics was collected at 0, 1, 6, 12, 24 and 48 hours after the operation. Results: The legs on which femoral nerve block was done with levobupivacaine showed a lower VNRS score than the legs with normal saline in either group Ⅰ or group Ⅱ. The VNRS scores between the two legs, the consumption of the Ⅳ PCA and the demand for additional analgesics showed no significant differences between the groups. Conclusions: Our results demonstrate that single-injection femoral nerve block using real-time ultrasound with either 0.25% levobupivacaine or 0.5% levobupivacaine 20 ㎖ provides a good effect for the postoperative pain control after TKA.
참고문헌 (20)
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