Femoral triangle group (N=32) | Proximal AC group (N=31) | Distal AC group (N=32) | P value | |
Quadriceps strength of operative leg (kgf) | ||||
POD1 morning | 5.0±2.8 | 5.0±2.7 | 4.9±2.9 | 0.885 |
POD1 afternoon | 4.5±2.3 | 4.1±2.5 | 4.8±2.7 | 0.275 |
POD2 morning | 4.2±3.0 | 4.8±2.4 | 5.9±2.3 | 0.274 |
Quadriceps strength of non-operative leg (kgf) | ||||
POD1 morning | 11.7±4.0 | 12.1±3.1 | 10.6±3.6 | 0.125 |
POD1 afternoon | 11.4±3.8 | 11.4±3.5 | 10.3±3.0 | 0.253 |
POD2 morning | 11.5±3.5 | 12.2±3.3 | 11.1±3.3 | 0.346 |
Amount of 0.2% ropivacaine given as boluses plus background infusion (mL) | ||||
0–24 hours | 173.4 (159.7–187.1) | 175.4 (157.7–193.1) | 163.6 (155.7–185.2) | 0.583 |
24–36 hours | 83.8 (77.8–95.5) | 87.7 (75.9–105.3) | 81.9 (76.0–93.5) | 0.556 |
36–48 hours | 79.8 (73.8–83.8) | 79.9 (77.9–85.8) | 79.8 (72.0–88.0) | 0.635 |
Amount of 0.2% ropivacaine given as boluses (mL) | ||||
0–24 hours | 26.0 (12.0–40.0) | 28.0 (10.0–44.0) | 16.0 (8.0–40.0) | 0.573 |
24–36 hours | 12.0 (8.0–24.0) | 16.0 (4.0–34.0) | 10.0 (4.0–22.0) | 0.485 |
36–48 hours | 8.0 (2.0–12.0) | 8.0 (6.0–14.0) | 8.0 (0.0–16.0) | 0.764 |
Patients receiving rescue analgesics (n) | ||||
0–24 hours | 22 (68.8%) | 12 (38.7%) | 13 (40.6%) | 0.027 |
24–36 hours | 13 (40.6%) | 12 (38.7%) | 7 (21.9%) | 0.219 |
36–48 hours | 12 (37.5%) | 8 (25.8%) | 5 (15.6%) | 0.138 |
Cumulative opioid consumption (morphine equivalents) | ||||
~24 hours | 0.4 (0.0–0.4) | 0.0 (0.0–0.3) | 0.0 (0.0–0.4) | 0.055 |
~36 hours | 0.4 (0.0–0.8) | 0.2 (0.0–0.4) | 0.1 (0.0–0.4) | 0.169 |
~48 hours | 0.6 (0.1–1.0) | 0.4 (0.0–0.5) | 0.1 (0.0–0.5) | 0.062 |
Values are presented as median (IQR), mean±SD, or number of patients (%).
AC, adductor canal; kgf, kilogram-force unit; POD, postoperative day.