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. 2022 Mar 18;11(6):1682.
doi: 10.3390/jcm11061682.

The Association between Two-Stage Tourniquet Application during Total Knee Replacement and Blood Loss: A Retrospective Cohort Study

Min Seok Oh  1 , Ji-Yoon Kim  2 , Cho Long Kim  2 , Su Rim Koh  2 , Yundo Jung  2 , Na Yeon Kim  2 , Mi Ae Jeong  1
Affiliations

The Association between Two-Stage Tourniquet Application during Total Knee Replacement and Blood Loss: A Retrospective Cohort Study

Min Seok Oh et al. J Clin Med. .

Abstract

Tourniquet use during total knee arthroplasty improves the surgical field, but is associated with several complications. The medical records of 506 patients who underwent elective total knee arthroplasty or total knee replacement from January 2017 to December 2020 were reviewed. A total of 331 patients who had undergone total knee arthroplasty were included. In the first half course group, the tourniquet was inflated with a pressure of 300 mmHg after manual banding before the incision and deflated after cement insertion. In the two-stage group, the tourniquet was inflated and deflated at the same stages of the procedure as in the first half course group. However, in this second group, the tourniquet was deflated for 15 min and then inflated again, and, finally, it was deflated after skin closure. The estimated blood loss, the number of patients who needed medications to control their blood pressure, and opioid usage at the post-anesthesia care unit were similar in both groups. The two-stage tourniquet technique was not related to reduced total blood loss in total knee arthroplasty.

Keywords: arthroplasty; total knee replacement; tourniquet; transfusion; vital stability.

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Conflict of interest statement

The authors declare no conflict of interest.

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Figure 1
Flow diagram of patient selection.
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