J Arthroplasty 2006 Sep;21(6):878-82
Innsbruck Medical University, Department of Orthopaedic Surgery, Thalwil, Switzerland.
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Knee Surg Sports Traumatol Arthrosc 2002 May 5;10(3):194-7. Epub 2002 Feb 5.
Orthopedic Department, Johanna Etienne Hospital, Neuss, Germany.
Femoral component malalignment is one of the main causes of persisting anterior knee pain after knee replacement. This study examined interindividual reproducibility in perioperative definition of the transepicondylar axis (TEA) as a reference for measuring the rotational alignment of the femoral component. Eight surgeons experienced in knee prosthetic surgery marked on Thiel-embalmed cadaver specimens the reference points that they would normally use to define the TEA during knee replacement. Read More
J Arthroplasty 2008 Apr;23(3):486; author reply 486
J Arthroplasty 2007 Dec;22(8):1150-61
Department of Orthopaedic and Traumatology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong.
This study investigated the errors of obtaining visually selected anatomic landmarks for use in the registration process in a passive optical non-image-based computer-assisted total knee arthroplasty system in 5 fresh frozen cadavers. The projected maximum errors in the femoral mechanical axis (due to registration errors of the center of the distal femur) were 0.7 degrees in the coronal and 1. Read More
J Arthroplasty 2005 Aug;20(5):591-601
Department of Orthopedic and Traumatology, Queen, Mary Hospital, University of Hong Kong, Hong Kong.
This study investigated the intraobserver errors in obtaining visually selected anatomic landmarks that were used in registration process in a nonimage-based computer-assisted total knee replacement (TKR) system. The landmarks studied were center of distal femur, medial and lateral femoral epicondyle, center of proximal tibia, medial malleolus, and lateral malleolus. Repeated registration in the above sequence was done for 100 times by a single surgeon. Read More