• Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi · Jun 2019

    [Effect of pneumatic tourniquet on perioperative blood loss in total knee arthroplasty].

    • Ziqi Zhang, Jialin Liang, Xiaoli Zuo, Ruiyu Liu, Xiaoqian Dang, and Kunzheng Wang.
    • First Department of Orthopedics, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi, 710004, P.R.China.
    • Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 2019 Jun 15; 33 (6): 681-684.

    ObjectiveTo evaluate the effect of pneumatic tourniquet on perioperative period of total knee arthroplasty (TKA).MethodsThe perioperative period data of 116 patients over 60 years old with severe knee osteoarthritis treated with TKA between January 2018 and January 2019 were retrospectively analyzed. According to whether pneumatic tourniquet was used during operation, the patients were divided into trial group (49 cases, pneumatic tourniquet was not used during operation) and control group (67 cases, pneumatic tourniquet was used during operation). There was no significant difference in gender, age, body mass index, lesion side, disease duration, and preoperative hemoglobin between the two groups ( P>0.05). The operation time, actual total blood loss, overt blood loss, hidden blood loss, and percentage of hidden blood loss, knee swelling at 3 days after operation, and range of motion of knee at 2 weeks after operation were recorded and compared between the two groups.ResultsThe operation time of the trial group was significantly longer than that of the control group ( t=14.013, P=0.000). The actual total blood loss, hidden blood loss, and percentage of hidden blood loss in the trial group were significantly lower than those in the control group ( P<0.05); there was no significant difference in the overt blood loss between the two groups ( t=-1.293, P=0.200). The knee swelling degree in the trial group was significantly slighter than that in the control group at 3 days after operation, and the range of motion of knee in the trial group was significantly better than that in the control group at 2 weeks after operation ( P<0.05).ConclusionPneumatic tourniquet can reduce the operation time of TKA significantly. However, it may increase the hidden blood loss and knee swelling, and negatively impact the recovery of knee function in the early postoperative stage of TKA.

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