From: Improvement of analgesic efficacy for total hip arthroplasty by a modified ultrasound‐guided supra‐inguinal fascia iliaca compartment block
Time after injection
Knee extension n(%)
Hip adduction n(%)
5 min
10 min
20 min
13/28(46 %)
24/28(86 %)
26/28(93 %)
3/28(11 %)
9/28(32 %)
11/28(39 %)