Gao J, Hou Y, Li R, et al. - This research was sought to ascertain if the accelerometer-based navigation (ABN) could improve the accuracy of restoring mechanical axis (MA), component positioning, and clinical outcomes compared to conventional (CON) total knee arthroplasty. Researchers enrolled a sum of 301 consecutive patients (ABN: 27, CON: 274). According to preoperative demographic and clinical parameters, a 1:4 propensity score matching (PSM) was conducted between the two groups. They compared postoperative MA, femoral coronal angle (FCA), femoral sagittal angle, tibial coronal angle, and tibial sagittal angle (TSA). They analyzed a total of 98 patients/102 knees after the PSM (ABN: 21 patients/24 knees, CON: 77 patients/78 knees). The outcomes illustrated that ABN could improve the accuracy and precision of mechanical alignment and component positioning without significant improvement of clinical outcomes. Future high-quality studies with long-term FU are required to comprehensively assess the value of the ABN.