Tourniquet-less total knee arthroplasty does not negatively affect cement penetration: a double-blinded randomized controlled trial.

研究概要

120 patients with end-stage knee osteoarthritis undergoing primary cemented total knee arthroplasty (TKA) were randomized to receive either tourniquet-assisted surgery or tourniquet-less surgery. The primary outcome was cement penetration depth measured on standardized radiographs at 60 days postoperatively. Secondary outcomes included the effect of bone mineral density on cement penetration. Outcomes were assessed at 60 days following surgery. Overall, the results of the study revealed that both groups achieved optimal cement penetration of 2–3 mm across most measured zones, with no clinically meaningful differences between groups. These findings suggest that tourniquet-less TKA does not adversely affect cement penetration when modern standardized surgical techniques are used.