scholarly journals Locating Adductor Canal and Quantifying the Median Effective Volume of Ropivacaine for Adductor Canal Block by Ultrasound

2021 ◽  
Vol 31 (10) ◽  
pp. 1143-1147
Keyword(s):  
Effective Volume ◽  
Adductor Canal Block ◽  
Adductor Canal

scholarly journals Median effective volume of ropivacaine 0.5% for ultrasound-guided adductor canal block

2018 ◽  
Vol 46 (10) ◽  
pp. 4207-4213 ◽  
Author(s):  
Yan Tao ◽  
Shao-qiang Zheng ◽  
Tao Xu ◽  
Geng Wang ◽  
Yun Wang ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Quadriceps Strength ◽  
Effective Volume ◽  
Ultrasound Guided ◽  
Adductor Canal Block ◽  
Medial Knee ◽  
Adductor Canal ◽  
Grade 5 ◽  
Arthroscopic Meniscectomy ◽  
The Mean

Objective This study aimed to identify the median effective volume of ropivacaine 0.5% for ultrasound-guided adductor canal block (ACB). Methods Thirty-two patients received ultrasound-guided ACB for knee arthroscopic meniscectomy. The criterion for successful ACB was the loss of pinprick sensation in the saphenous area (medial knee, leg, and foot). The volume of ropivacaine 0.5% in each case was determined using the up-down method and used for calculating the median effective dose. Results The mean age, weight, and height of patients were 28.6 ± 7.1 years, 68.2 ± 10.6 kg, and 172.5 ± 6.4 cm, respectively. Among patients who received 18- and 15-mL doses, ACB was successful in all four cases. Among patients who received a 12-mL dose, ACB was effective in eight and ineffective in two cases. Among patients who received a 10-mL dose, ACB was successful in six and unsuccessful in seven cases. In patients who received an 8-mL dose, ACB was ineffective in all five cases. The median effective volume of ropivacaine 0.5% was 10.4 mL (95% confidence interval, 9.1–11.4 mL). In all effective cases, the median quadriceps strength was grade 5. Conclusions The median effective volume of ropivacaine 0.5% is 10.4 mL for ultrasound-guided ACB.

scholarly journals The Effect of Femoral Nerve Block and Adductor Canal Block Methods on Patient Satisfaction in Unilateral Knee Arthroplasty: Randomized Non-Inferiority Trial

2021 ◽  
Vol 12 ◽  
pp. 215145932199663
Author(s):  
Mustafa Kaçmaz ◽  
Zeynep Yüksel Turhan
Keyword(s):  
Total Knee Arthroplasty ◽  
Patient Satisfaction ◽  
Nerve Block ◽  
Knee Arthroplasty ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Adductor Canal Block ◽  
Adductor Canal ◽  
Significant Difference ◽  
Total Knee

Introduction: Femoral Nerve Block (FNB) and Adductor Canal Block (ACB) methods, which are regional analgesic techniques, are successfully used in postoperative pain control after total knee arthroplasty. This study aimed to compare adductor canal block method that was preoperatively used and femoral nerve block method in total knee arthroplasty (TKA) patients who underwent spinal anesthesia in terms of factors effecting patient satisfaction and determine whether these methods were equally effective or not. Methods: A total of 80 patients between the ages of 60 and 75 who were in the American Society of Anesthesia (ASA) physical status of I-III were prospectively included in this randomized study. Patients (n = 40) who received FNB were called Group FNB and patients (n = 40) who received Adductor Canal Block were called Group ACB. Results: Although mean postoperative VAS values were lower in FNB group only in the first hour (p = 0.02) there was no significant difference between the groups in the third, fifth, seventh, ninth, 12th and 24th hours (p≥0.05). Although Bromage scores were lower in FNB group in the first, second, third, fourth and fifth hours there was no statistically significant difference between the groups (p≥0.05). When mobilization time, patient satisfaction level, time of first analgesia, intraoperative sedation need, and recovery time of sensorial block were compared no statistically significant difference was found (p≥0.05). Discussion: When ACB and FNB that are used for postoperative analgesia in patients who undergo total knee arthroplasty are compared in terms of factors affecting patient satisfaction it is observed that they result in the same level (non-inferiority) of patient satisfaction. Conclusion: We recommend the routine use of ACB method with FNB in total knee arthroplasty. More studies focusing especially on measuring patient satisfaction are needed.

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