There were 58 unilateral total knee replacements (TKR) and 7 bilateral TKR.
单膝关节置换58膝，双膝关节置换7膝。
Objective To summarize the experience of cause of infection and management after total knee replacement(TKR).
目的总结人工膝关节置换术后感染的原因及治疗体会。
Objective to explore the clinical effect of total knee arthroplasty (TKR) used in patients with knee osteoarthritis.
目的探讨人工全膝关节置换治疗骨性关节炎的临床效果。
Objective: to observe the effect of continuous anterior lumbar plexus block with different concentration ropivacaine on postoperative pain relief after total knee prosthesis (TKR).
目的：观察不同浓度罗哌卡因连续前路腰丛神经阻滞用于全膝关节置换(TKR)术后镇痛的效果。
Objective: to determine the effects of continuous lumbar plexus block on postoperative pain after total knee replacement (TKR) surgery, and compare with the effects of epidural block.
目的：观察连续腰大肌间沟阻滞用于全膝关节置换术后镇痛的疗效，并与硬膜外镇痛进行对比研究。
Conclusion:After TKR surgery, modiffied continuous anterior lumbar plexus block with 0.15%or 0.2%ropivacaine can provide adequate pain relief, slight impact on muscle strength and fewer side effects.
结论：0.15%或0.2%罗哌卡因连续前路腰丛神经阻滞用于全膝关节置换术后镇痛效果良好，对肌力影响小，副作用发生率低。
Conclusion:After TKR surgery, modiffied continuous anterior lumbar plexus block with 0.15%or 0.2%ropivacaine can provide adequate pain relief, slight impact on muscle strength and fewer side effects.
结论：0.15%或0.2%罗哌卡因连续前路腰丛神经阻滞用于全膝关节置换术后镇痛效果良好，对肌力影响小，副作用发生率低。
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