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Fu, P., Wu, Y., Wu, H., Li, X., Qian, Q. and Zhu, Y. (2009) Efficacy of Intra-Articular Cocktail Analgesic Injection in Total Knee Arthroplasty—A Randomized Controlled Trial. Knee, 16, 280-284.
https://doi.org/10.1016/j.knee.2008.12.012

has been cited by the following article:

  • TITLE: Continuous Intra-Articular Ropivacaine/Tramadol Combination Infusion Therapy Improves Postoperative Outcome of Total Knee Arthroplasty

    AUTHORS: Ayman Mohamady Eldemrdash, El-Sayed Mohamed Abdelzaam

    KEYWORDS: Continuous, Infusion, Intra-Articular, Total Knee Arthroplasty, Tramadol, Ropivacaine

    JOURNAL NAME: Open Journal of Anesthesiology, Vol.8 No.5, May 22, 2018

    ABSTRACT: Objectives: To evaluate the postoperative analgesic yield of continuous intra-articular (IA) ropivacaine/tramadol infusion as against infusion of ropivacaine alone after total knee arthroplasty. Patients and Methods: Sixty patients accompanied by arthrosis were randomly divided into three equal groups: The ropivacaine group, which obtained a continuous intraarticular (IA) infusion of ropivacaine alone; the combination group, which obtained a continuous (IA) infusion of a combination of ropivacaine and tramadol at a rate of 6 ml/h for 72 h postoperatively; and the control group, which did not receive IA medications. After release of the ischemic tourniquet and assurance of haemostasis, a vacuum drainage tube was applied. The (IA) infusion was delivered through a multipored catheter for 72 h. Postoperative pain was assessed using visual analogue pain scale (VAS), and intravenous meperidine was administered as rescue analgesia if the (VAS) pain score was greater than or equal to (4) or on patient’s request. The total rescue analgesia consumption, angle of flexion of the knee and hospital stay were recorded. Results: The ability to achieve better angle of flexion was significantly higher in the combination group compared with the other groups, with a significant difference in favour of the ropivacaine group compared with the control group. At 2 h postoperatively, the mean pain (VAS) scores were significantly lower in patients who received (IA) analgesia compared with the control group and in the ropivacaine/tramadol group versus the ropivacaine group. The number of requests and total dose of rescue analgesia consumed were significantly lower with (IA) analgesia, with a significant difference in favour of the combination group. There was significant correlation between pain (VAS) scores and angle of flexion of the knee joint. Conclusion: Continuous (IA) ropivacaine/tramadol infusion safely reduced postoperative pain and spared administration of rescue analgesics with a significantly improved range of joint movement.