@article{article_191727, title={The effect of computerized navigation on component alignment in total knee arthroplasty}, journal={Acta Orthopaedica et Traumatologica Turcica}, volume={47}, pages={8–13}, year={2013}, author={Soares, Luiz Fernando Machado and Nunes, Tarcizo Afonso and Percope De Andrade, Marco Antônio and Neyret, Philippe and Badet, Roger}, keywords={Computer navigation, gonarthrosis, implant positioning, ligament balancing, total knee replacement}, abstract={Objective: The aim of this retrospective cross-sectional study was to evaluate the effect of computerassisted total knee arthroplasty (TKA) on component alignment. <br />Methods: The radiographs of 20 patients who underwent computer-assisted TKA within a two-year period were analyzed with respect to the mechanical femorotibial, mechanical femoral, mechanical tibial angles (mFTA, mFA and mTA, respectively) and the tibial slope (σ). <br />Results: The mean postoperative mFTA (179.7°) was significantly improved when compared to the preoperative value (175.45°) (p=0.012). The mean postoperative mFA was significantly reduced <br />(p=0.035) in comparison with the preoperative mean (89.1° and 90.6°, respectively). The mean postoperative mTA was exactly 90.0°, while the preoperative mean was significantly lower (87.7°; p=0.003). Mean tourniquet time during TKA was 109.5 minutes. <br />Conclusion: Computer navigation in TKA appears to be a reliable system which facilitates implant positioning and component alignment. }, number={1}, publisher={Turkish Association of Orthopaedics and Traumatology}