2.1. Patient demographics
knee arthroplasty, DVT
DVT
From February 2017 to July 2022, 240 patients scheduled to undergo primary unilateral TKA were screened for inclusion in the study. Twenty-eight patients did not meet the inclusion criteria, and twelve patients were lost to follow-up at the 3-month endpoint, leading to 200 participants (Fig. Demographic data of the patients receiving TKA.APTT = activated partial thromboplastin time, BMI = body mass index, Hb = hemoglobin, HSS = Hospital for Special Surgery, PT = postoperative prothrombin, TKA = total knee arthroplasty, VAS = visual analogue scale.Schematic diagram of the patient study process.All surgeries were performed by a senior physician of the surgical team in a hundred-level laminar flow operating room. Patients were evaluated by an anesthesiologist and given intraspinal anesthesia in the supine position, middle approach, and bone cement prosthesis (posterior stabilized; DePuy). DVT was detected by lower extremity doppler ultrasound in all patients before discharge.