 Then preincisional blood pressure BP will be measured and will continue to be noted every 15 minutes. At the conclusion of the procedure the surgeon will rate intraoperative bloodlessness on a four-point scale: 1bloodless, 2nearly bloodless, some bleeding; 3bloody, tourniquet is no better than not using; or 4venous tourniquet, tourniquet is making the procedure more difficult. Intraoperative bloodlessness is being used to determine the functionality and effectiveness of the tourniquet, surgical field visualization, and surgical site dryness. 