To explore the effect of fascia iliaca compartment block (FICB) with high volume ropivacaine in preoperative analgesia in senile patients with hip fracture.

70 elderly patients with hip fracture admitted to Zhejiang hospital from January 2020 to June 2020 were selected, who were gave ultrasound guided iliac fascia space block immediately after admission. Among them, 35 cases (high volume group) received high volume ropivacaine (concentration 0.33%, 45 ml) and 35 cases (conventional volume group) received conventional volume (concentration 0.50%, 30 ml). The resting pain score and passive activity pain score of the two groups were observed at 30 min (T1), 4 h (T2), 8 h (T3), and 12 h (T4) after block, and the first pressing time, pressing times and dosage of patient-controlled analgesia pump were recorded. T test and repeated measurement analysis of variance were used to compare the measurement data between groups, and the chi square test was used to compare the count data.

There were significant differences in resting pain score and passive activity pain score between the two groups (F=12.570, 19.780; P < 0.05), and the resting pain score and passive activity pain score of high volume group were lower than those of conventional volume group at T1, T2 and T3 (P < 0.05). The dosage of sufentanil, effective pressing times and total pressing times of high volume group were significantly less than those of conventional volume group (t=-10.705, -12.954, -9.913; P < 0.05).

High volume ropivacaine FICB can provide more effective analgesic effect for elderly patients with hip fracture before surgery, and it is safe.