• Fatih Esad Topal, Serkan Bilgin, Adnan Yamanoglu, Zeynep Karakaya, Umut Payza, Pınar Yesim Akyol, Cihan Aslan, and Murat Aksun.
• Department of Emergency Medicine, Katip Celebi University, Ataturk Training and Research Hospital, Izmir, Turkey.
• J Emerg Med. 2020 Apr 1; 58 (4): 553-561.

BackgroundThe local anesthetic dosages used in the current literature in regional applications of local anesthetics are frequently high for surgical purposes, and there are no sufficient dosage studies for emergency department (ED) management.ObjectivesThe aim of this study was to determine the success of lower local anesthetic dosages capable of reducing costs and excessive exposure to drugs in pain control in patients with femoral neck fractures (FNFs) in the ED.MethodsPatients ≥65 years of age with FNFs and reporting Wong-Baker Pain Rating Scales scores ≥8 were included in this prospective, interventional study. Patients underwent ultrasound-guided regional femoral block with 5 mL 2% prilocaine. Pain scores before the procedure and at 30 min and 2 h postprocedure were compared with the Friedman test and Wilcoxon test with Bonferroni correction.ResultsForty patients, 20 with intracapsular and 20 with extracapsular FNFs, were enrolled. The initial pain scores of patients with both intra- and extracapsular fractures were 8 (range 8-10). A statistically significant 50% decrease in pain scores was observed in both groups 30 min after the regional block procedure (p < 0.001). A statistically significant 75% decrease in pain scores was observed in both groups 2 h after the regional block procedure (p < 0.001). No statistically significant difference was determined in the change in 30-min and 2-h pain scores between the groups.ConclusionsThe administration of 5 mL 2% prilocaine for pain control in FNFs in elderly patients in the ED can reduce systemic analgesic requirements by establishing effective analgesia in both intracapsular and extracapsular fractures.Copyright © 2019 Elsevier Inc. All rights reserved.

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