Objective To evaluate the efficacy and safety of sulfentanlyl-nefopam and fentanyl-netopam for patient-controlled intravenous analgesia(PCIA)after lower limb surgery with general anesthesia.

• 目的比较等效剂量国产舒芬太尼和芬太尼复合盐酸奈福泮用于下肢骨科手术患者静脉自控镇痛(PCIA)的效果及不良反应。