中文摘要：

目的评价关节腔内复合麻醉剂注射在膝关节镜术后镇痛中的作用。方法120例择期行膝关节镜手术的患者随机分为注射组和对照组：注射组手术结束前予以行关节腔内复合麻醉剂注射．对照组不予以行关节内麻醉荆注射。分别比较两组患者术后不同时间点膝关节疼痛评分、术后麻醉剂使用情况以及术后并发症的发生情况。结果采用关节腔内复合麻醉剂注射后，可以显著减少术后总的麻醉剂使用量；术后4、8、24h膝关节视觉模拟评分（visual analoguescle，VAS），注射纽小于对照组（P〈0．05），术后2、48h两组间VAS评分无统计学差异（P〉0．05）；在对所有患者术后伤口愈合、感染发生率、血压、心率、皮肤瘙瘁、意识清醒程度等的监测上．两组间均没有统计学差异。结论小剂量复合麻醉剂的关节腔内注射有助于减轻膝关节镜手术患者的术后疼痛．减少术后总的麻醉剂使用量，具有费用低、并发症少及操作简单、安全的优点。

英文摘要：

Objective To evaluate the analgesic effect of intra-articular analgesia after knee arthroscopy. Methods One hundred and twenty patients undergoing knee arthroscopy were randomly divided into two groups by receiving either intra-articular analgesia drugs or not. The following parameters were compared： the postoperative pain scores by visual analogue scle（VAS） at different times,the total consumption of anesthetic and the complications. Results The pain scores at 4,8 h and 24 h after operation were lower in treated patients than the untreated. There were no significant differences between the two groups in complications. Conclusion Perioperative use of intra-articular analgesia is efficient in postoperative pain control and can reduce the post operational narcotic drug consumption.