Table 2.
Summary of Previous Meta-Analyses Comparing Analgesic Efficacy and Functional Recovery of ACB and FNB
| Author | Year | Study (no.) | ACB/FNB | Continuous/single shot | ACB>FNB | ACB=FNB |
|---|---|---|---|---|---|---|
| Zhao et al.44) | 2016 | 5 RCTs25,27,29,31,32) (348) | 200/207 | 146/204 | Q strength and mobilization ability | Pain level, opioid consumption and related SE, satisfaction, and adductor strength |
| Li et al.43) | 2016 | 8 RCTs25,27–29,31,32,49,50) (434) | 249/255 | 222/212 | Resting pain within postoperative 8–24 hr Q strength and mobilization ability |
Pain level after POD 2, opioid consumption, satisfaction, adductor strength, and tourniquet time |
| Kuang et al.41) | 2015 | 4 RCTs28,29,31,32) 3 CCTs 24,26,30) (828) |
383/445 | 374/468 | Resting pain within postoperative 24 hr, postoperative nausea and vomiting, mobilization ability and ambulation distance, and LOS | Pain level and opioid consumption after POD 2 |
| Hussain et al.40) | 2016 | 6 RCTs25,27–29,31,32) (408) | 230/237 | 206/204 | Q strength within postoperative 8–24 hr | Pain level at rest or motion within POD 2, and complement analgesic doses or related SE |
| Dong et al.39) | 2016 | 6 RCTs25,27–29,31,32) 2 CCTs 24,30) (751) |
360/391 | 374/280 | - | Pain level, opioid consumption and related SE, Q and adductor strength, and LOS |
| Li and Ma42) | 2016 | 7 RCTs25,27–29,31,32) 2 CCTs 24,30) (639) |
295/344 | 374/318 | Q strength on POD 1–2 | Pain level, opioid consumption and related SE, risk of falls, and LOS |
ACB: adductor canal block, FNB: femoral nerve block, RCT: randomized controlled trial, Q: quardriceps muscle, SE: side effect, POD: postoperative day, CCT: comparative clinical trial, LOS: length of stay.