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Standard Preoperative Analgesia with or without Fascia Iliaca Compartment Block for Femoral Neck Fractures

Purpose. To compare the visual analogue score (VAS) for pain in patients with femoral neck fracture who received standard preoperative analgesia with or without fascia iliaca compartment block (FICB). Methods. In patients with femoral neck fracture, 69 patients who received standard preoperative analgesia (regular paracetamol 1g 4 times a day, codeine 60 mg 4 times a day, and opioid 10 mg 2 hourly as required) were compared with 50 patients who received standard preoperative analgesia plus FICB. VAS for pain at rest and on movement (hip flexion) was assessed before FICB and 15 minutes, 2 and 8 hours after FICB. The amount of additional opioid required and the incidence of opioid overdose (necessitating administration of naloxone) were determined. Results. VAS for pain was significantly lower after standard analgesia plus FICB than standard analgesia alone (p=0.001). The analgesic effect (pre-score minus post-score) of standard analgesia plus FICB did not differ between genders (p=0.57) or fracture patterns (p=0.79). 19 (38%) patients with standard analgesia plus FICB required no additional opioid analgesia. Compared with standard analgesia alone, addition of FICB reduced the mean dose of opioid from 6.2 to 2.0 (p=0.001) and the number of opioid overdose from 7.2% to 0% (p=0.001). No patient had any complication following FICB. Conclusion. In patients with femoral neck fracture, FICB reduced the need for additional opioid analgesia and avoided the risk of opioid overdose and respiratory depression.