Introduction
end-stage knee disease, postoperative pain, blood loss, knee arthroplasty, TKA, thromboembolism
BLOOD LOSS, THROMBOEMBOLISM
Total knee arthroplasty (TKA) has been a successful surgery to treat end-stage knee disease for decades. Minimal invasive surgery total knee arthroplasty (MIS-TKA) is an advanced procedure to minimize soft tissue damage, reduce postoperative pain and blood loss, shorten hospital stay and recover time [Computer-assisted surgical (CAS) navigation has been used in TKA procedures for years trying to improve the accuracy of prosthesis placement and postoperative mechanical alignment. Some studies have been demonstrated that the computer navigation system used in MIS-TKA can decrease the number of outliers with more than 3° deviation from the mechanical axis [The new pinless navigation system for TKA procedures has been developed [Therefore, we conducted this prospective randomized clinical trial to compare the accuracy of the radiographic parameters of the knee implant, total blood loss (TBL), and incidence of thromboembolism between the pinless navigation system (Stryker OrthoMap Express Knee Navigation) and conventional method in patients undergoing MIS-TKA procedures.