Orbach Hagay, Rozen Nimrod, Rinat Barak, Rubin Guy
1 Orthopedic Department, Emek Medical Center, Afula, Israel.
2 Faculty of Medicine, Technion, Haifa, Israel.
J Int Med Res. 2018 Nov;46(11):4535-4538. doi: 10.1177/0300060518799883. Epub 2018 Sep 27.
This study aimed to compare analgesic efficacy and safety of different volumes of lidocaine injected into a fracture hematoma (hematoma block [HB]) for reducing distal radius fractures.
Patients were randomly divided into two groups. Group A included patients in whom 10 mL of 2% lidocaine was injected into the fracture site and group B included patients in whom 20 mL of 1% lidocaine was injected. The fracture was manipulated after 15 minutes and the Visual Analogue Scale (VAS) score was recorded during manipulation. Patients were followed up for approximately 1 hour and complications were recorded.
Twenty patients were enrolled in the study (12 women and eight men), with a mean age of 57 years (range, 32-87 years). Demographic findings were similar between the groups. The mean VAS score of group A was 5.50 ± 3.57 and that in group B was 3.09 ± 2.33, with no significant difference between the groups.
VAS scores between HB with 20 mL of 1% lidocaine and HB with 10 mL of 2% lidocaine are not significantly different. However, our study suggests that HB with 20 mL of 1% lidocaine has a better analgesic effect than HB with 10 mL of 2% lidocaine.
本研究旨在比较注入骨折血肿（血肿阻滞[HB]）中不同体积的利多卡因用于减轻桡骨远端骨折疼痛的疗效和安全性。
患者被随机分为两组。A组患者在骨折部位注入10毫升2%利多卡因，B组患者在骨折部位注入20毫升1%利多卡因。15分钟后进行骨折手法复位，并记录复位过程中的视觉模拟评分（VAS）。对患者进行约1小时的随访并记录并发症。
20名患者纳入本研究（12名女性和8名男性），平均年龄57岁（范围32 - 87岁）。两组的人口统计学结果相似。A组的平均VAS评分为5.50±3.57，B组为3.09±2.33，两组之间无显著差异。
注入20毫升1%利多卡因的HB与注入10毫升2%利多卡因的HB之间的VAS评分无显著差异。然而，我们的研究表明，注入20毫升1%利多卡因的HB比注入10毫升2%利多卡因的HB具有更好的镇痛效果。
