Clin Orthop Relat Res 2004 Sep(426):180-6
Department of Orthopaedics, University of Innsbruck, Innsbruck, Austria.
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Chin Med J (Engl) 2012 Jan;125(2):236-43
Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China.
Background: Proper rotational alignment during total knee arthroplasty (TKA) is important for adequate postoperative patellofemoral and tibiofemoral kinematics, as well as for achieving balanced flexion space at 90. The effects of computer navigation-assisted total knee replacement and conventional total knee arthroplasty on rotational alignment, mechanical axis, component position and clinical outcomes were compared.
Methods: Two methods were used in 82 patients and the rotation of the femoral and tibial components in the transverse plane, the combined rotation of the two components, the mismatch between them, and the mechanical axis of the lower limb were analyzed. Read More
J Bone Joint Surg Am 2007 Feb;89(2):236-43
Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, Charitéplatz 1, D-10117 Berlin, Germany.
Background: Despite the use of modern instruments in total knee arthroplasty, component malalignment remains a problem. Whether a computer-assisted implantation technique can improve the accuracy of the spatial positioning of an implant is a matter of debate. The objective of this study was to determine whether computer-assisted total knee arthroplasty is superior to the conventional surgical method with regard to the precision of implant positioning. Read More
Comput Aided Surg 2012 ;17(2):86-95
Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Introduction: A functional total knee replacement has to be well aligned, which implies that it should lie along the mechanical axis and in the correct axial and rotational planes. Incorrect alignment will lead to abnormal wear, early mechanical loosening, and patellofemoral problems. There has been increased interest of late in total knee arthroplasty with robotic assistance. Read More
Rev Chir Orthop Reparatrice Appar Mot 2008 Oct 27;94(6):580-4. Epub 2008 May 27.
Service de chirurgie-orthopédique, centre hospitalier de Versailles, 177, rue de Versailles, 78157 Le Chesnay, France.
Introduction: Accurate implantation of the prosthesis components is a prognostic factor for long-term total knee arthroplasty survival as it reduces wear and loosening failure. Computer-assisted navigation systems have proved to produce accurate bone cuts orthogonal to the mechanical axis. Proper rotational alignment of the femoral component is one of the requirements for optimal positioning of the femoral prosthesis. Read More