Limiting tourniquet use during total knee arthroplasty improves short-term postoperative outcomes in patients with hypertension.

Introduction: Tourniquets are commonly used during total knee arthroplasty (TKA) to reduce intraoperative bleeding. However, information on the optimal tourniquet usage strategy in patients with hypertension are lacking. Methods: A retrospective analysis of 90 patients with knee osteoarthritis and hypertension who underwent primary TKA was conducted. Patients were divided into three groups: Group A (tourniquet applied before skin incision and released after wound closure), Group B (tourniquet applied before prosthesis placement and released after wound closure), and Group C (tourniquet applied before prosthesis placement and released after bone cement solidification). Outcomes measured included intraoperative and postoperative blood loss, swelling rate, visual analog scale scores, perioperative complications, and Knee Society Scores. Results: Group A exhibited the lowest intraoperative blood loss volume (239.26 ± 53.83 ml), but this group had significantly higher hidden blood loss, total blood loss, and transfusion volumes than Groups B and C ( Discussion: Tourniquet application before prosthesis placement and release after wound closure or bone cement solidification were associated with better short-term outcomes, reduced complications, and improved rehabilitation compared to tourniquet use during the entire procedure in patients with hypertension undergoing TKA.