Is Lower Tourniquet Pressure During Total Knee Arthroplasty Effective? A Prospective Randomized Controlled Trial

A lower tourniquet inflation pressure of 120 mm Hg above systolic blood pressure (SBP) is effective during total knee arthroplasty (TKA), according to this study. The researchers sought to determine if a lower pressure is as effective as conventional tourniquet pressure (SBP + 150 mmHg) in decreasing blood loss and providing a bloodless surgical field. To conduct this study, researchers arbitrarily assigned 160 knees in 124 patients undergoing TKA to either conventional (n=80) or lower inflation pressure groups (n=80). After assessing efficacy variables, and safety outcome variables, results showed that a comparable bloodless surgical field was provided by both groups. Moreover, the two groups did not differ in safety outcomes.

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