scholarly journals A Multimodal Pain Management Regimen Utilizing Adductor Canal Block in a Veterans Affairs Population Decreases Opioid Consumption Following Total Knee Arthroplasty.

2020 ◽  
Author(s):  
Neil Soehnlen ◽  
Eric Erb ◽  
Eric Kiskaddon ◽  
Uthona Green ◽  
Andrew Froehle ◽  
...  

Abstract Background: Ease of access to opioids in the perioperative period is a risk factor for subsequent opioid abuse. The purpose of this study was to quantify a decrease in opioid consumption following implementation of a new analgesic protocol after total knee arthroplasty (TKA). Methods: A retrospective cohort study was performed analyzing patients who underwent TKA at a Veterans Affairs medical center. Patients were divided into two groups by multimodal analgesic regimen: Analgesia with intraoperative general anesthesia, a patient controlled analgesia pump, and oral opioids (Traditional group) or analgesia with intraoperative spinal anesthesia, a multimodal medication regimen, and an adductor canal block (Protocol group). Results: A total of 533 TKAs were included. The intravenous morphine equivalent dose (MED) requirement was 178.2 ± 98.0 for Traditional and 12.0 ± 24.6 for Protocol groups (p < 0.001). Total opioid MED requirement was 241.7 ± 120.1 for Traditional and 74.8 ± 42.7 in Protocol groups (p < 0.001). The Protocol group required only 6.7% of the intravenous opioids and 30.9% of the total opioids used by the Traditional group. No difference in oral opioid requirements was found (p = 0.849). The Traditional group required more opioid refills at the first postoperative visit (p < 0.001). Conclusions: The described analgesic protocol resulted in significant decreases in intravenous and total opioid requirement, and lower rates of opioid prescriptions at the first postoperative visit. These findings demonstrate a decrease in opioid utilization with modern perioperative analgesia protocols and reinforce recommendations by the CDC and AAOS to decrease opioid exposure and access. Trial Registration: Not applicable

2021 ◽  
pp. rapm-2021-102705
Author(s):  
Nasir Hussain ◽  
Richard Brull ◽  
Brendan Sheehy ◽  
Michael Dasu ◽  
Tristan Weaver ◽  
...  

BackgroundWhen combined with adductor canal block (ACB), local anesthetic infiltration between popliteal artery and capsule of knee (iPACK) is purported to improve pain following total knee arthroplasty (TKA). However, the analgesic benefits of adding iPACK to ACB in the setting of surgeon-administered periarticular local infiltration analgesia (LIA) are unclear.ObjectivesTo evaluate the analgesic benefits of adding iPACK to ACB, compared with ACB alone, in the setting of LIA following TKA.Evidence reviewWe conducted a meta-analysis of randomized trials comparing the effects of adding iPACK block to ACB versus ACB alone on pain severity at 6 hours postoperatively in adult patients undergoing TKA. We a priori planned to stratify analysis for use of LIA. Opioid consumption at 24 hours, functional recovery, and iPACK-related complications were secondary outcomes.FindingsFourteen trials (1044 patients) were analyzed. For the primary outcome comparison in the presence of LIA (four trials, 273 patients), adding iPACK to ACB did not improve postoperative pain at 6 hours. However, in the absence of LIA (eight trials, 631 patients), adding iPACK to ACB reduced pain by a weighted mean difference (WMD) (95% CI) of −1.33 cm (−1.57 to –1.09) (p<0.00001). For the secondary outcome comparisons in the presence of LIA, adding iPACK to ACB did not improve postoperative pain at all other time points, opioid consumption or functional recovery. In contrast, in the absence of LIA, adding iPACK to ACB reduced pain at 12 hours, and 24 hours by a WMD (95% CI) of −0.98 (−1.79 to –0.17) (p=0.02) and −0.69 (−1.18 to –0.20) (p=0.006), respectively, when compared with ACB alone, but did not reduce opioid consumption. Functional recovery was also improved by a log(odds ratio) (95% CI) of 1.28 (0.45 to 2.11) (p=0.003). No iPACK-related complications were reported.ConclusionAdding iPACK to ACB in the setting of periarticular LIA does not improve analgesic outcomes following TKA. In the absence of LIA, adding iPACK to ACB reduces pain up to 24 hours and enhances functional recovery. Our findings do not support the addition of iPACK to ACB when LIA is routinely administered.


2021 ◽  
Vol 12 ◽  
pp. 215145932199663
Author(s):  
Mustafa Kaçmaz ◽  
Zeynep Yüksel Turhan

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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