Abstract
By a News Reporter-Staff News Editor at Robotics & Machine Learning Daily News Daily News-New research on Surgery - Arthroplasty is the subject of a report. According to news reporting from Beijing, People's Republic of China, by NewsRx journalists, research stated, "There is an increasi ng number of different brands of robotic total knee arthroplasty (TKA) systems. Most robotic TKA systems share the same coronal alignment, while the definitions of sagittal alignment vary." The news correspondents obtained a quote from the research, "The purpose of this study was to investigate whether these discrepancies impact the sagittal alignm ent of the lower extremity. A total of seventy-two lower extremity computed tomo graphy (CT) scans were included in our study, and threedimensional models were obtained using software. A total of seven brands of robotic TKA systems were inc luded in the study. The lower extremity axes were defined based on the surgical guide for each implant. We also set the intramedullary axis as a reference to ev aluate the discrepancies in sagittal alignment of each brand of robotic system. On the femoral side, the axis definition was the same for all seven robotic TKA systems. The robotic TKA axes showed a 2.41° (1.58°, 3.38°) deviation from the i ntramedullary axis. On the tibial side, the seven robots had different axis defi nitions. The tibial mechanical axis of six of the TKA systems was more flexed th an that of the intramedullary axis, which means the posterior tibial slope was d ecreased while the tibial mechanical axis of the remaining system was more exten ded. The sagittal alignment of the lower extremity for seven different brands of robotic TKA systems differed from each other and all deviated from the intramed ullary axis."
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