Nerve block guided by ultrasound
femoral cutaneous nerve block
In the IPB group, IPB was performed under ultrasound guidance as previous reports (Fig. Iliopsoas Plane Block (For patients in the FNB group, FNB was performed under ultrasound guidance (Fig. Lateral femoral cutaneous nerve block was performed with 5 ml of 0.5% ropivacaine for patients in both the IPB and FNB group.