Objective To compare analgesic efficacy and complications of patient controlled intravenous analgesia for total hip arthrsoplasty with equivalent dose of sufentanil or fentanyl.

• 目的观察等效剂量的芬太尼和舒芬太尼用于骨科全髋置换术后患者静脉自控镇痛的镇痛效果和副作用。