Table 2 Shows a summary of the included studies and their main findings
Study ID | Sample size | Study location | Hip arthroplasty setting | Type of FICB | Type of anesthesia | Intervention | Control | Study design | Duration of follow up | Main results |
|---|---|---|---|---|---|---|---|---|---|---|
Bober2020 [27] | 119 | USA | Elective | Ultrasound guided | Epidural anesthesia | 40 ml of 0.25% bupivacaine | Placebo | RCT | 4 weeks | No significant difference in the morphine equivalents consumed and average pain scores during the first 24 h. |
Chen 2023 [37] | 89 | China | Elective | Ultrasound guided | Spinal anesthesia | 40 mL 0.5% ropivacaine | Placebo | RCT | 48 h | FICB significantly increased the duration of analgesia and improved 24-h QoR, but reduced postoperative muscle strength. |
Deniz2014 [23] | 70 | Turkey | Elective | Ultrasound guided | General anesthesia | 30 ml of 0.25% bupivacaine | Placebo | RCT | 24 h | FICB significantly reduces analgesic consumption, but no significant difference in VAS scores after the first two hours. |
Desmet2017 [26] | 85 | Belgium | Elective | Ultrasound guided | General anesthesia | 40 mL of 0.5% ropivacaine | Placebo | RCT | 48 h | FICB Significantly reduces morphine consumption at 24 and 48 h, and pain scores at 1, 2, 4, and 24 h postoperatively. |
Gola2021 [24] | 100 | Poland | Elective | Ultrasound guided | Spinal anesthesia | 40 mL of 0.375% ropivacaine solution with adrenaline at a dose of 5 µg/mL of solution. | Placebo | RCT | 48 h | FICB significantly reduce analgesic consumption, and pain scores at all-time points except for 48 h. |
Liu2020 [28] | 119 | China | Not determined | Ultrasound guided | General anesthesia | 30 ml of 0.2% ropivacaine | Placebo | RCT | 72 h | The pain scores at all-time points were significantly lower in the FICB group |
Shariat2013 [29] | 32 | USA | Elective | Ultrasound guided | General anesthesia | 30 mL of 0.5% ropivacaine | Placebo | RCT | 24 h | Pain scores were significantly lower in FICB at 24 h. No significant difference in morphine consumption between the two groups |
Stevens2007 [25] | 44 | Australia | Elective | Two pop method | Spinal anesthesia | 30 ml of 0.5% bupivacaine with 1:200,000 adrenaline, 150 µg clonidine and 9 ml of 0.9% saline (total volume 40 ml). | Placebo | RCT | 24 h | No significant difference in pain scores between the two groups. At both the 12 and 24-hour interval there was a significant decrease in morphine use by the FICB group. |