Title: Hematoma Block
题目：血肿部位局麻
Author 作者: Brian Corwell

Provides good aesthesia for reduction of fractures. Onset in approximately 5 minutes

可为骨折复位提供满意的麻醉效果，打概在5分钟内起效。

Benefits: No need for NPO, simple and easy to perform & can be done without additional personnel (unlike w/ procedural sedation)

益处：不需要禁食，操作简单容易，不需要有助手（与操作镇静不同）

Contraindications: Open fractures, dirty or infected overlying skin

禁忌症：开放性骨折，覆盖皮肤不干净或有感染

1) Identify fracture site with x-ray and palpation

通过X线和触诊找到骨折部位

2) Clean skin w/ Betadine

局部碘酒消毒

3) Insert needle into the hematoma. * Confirm placement by aspirating blood *

将针头刺入血肿，可通过回吸到血来证实位置的准确。

4) Inject anesthetic (lidocaine 1 or 2%) into the fracture cavity and adjacent periosteum

将麻药（1%~2%的利多卡因）注入到骨折间隙和骨膜

http://www.youtube.com/watch?v=tjnsdjfwMmY