caa a22 4500 605460736 CHVBK 20210128100240.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s00167-014-3170-7 doi (NATIONALLICENCE)springer-10.1007/s00167-014-3170-7 Fibular axes are not a reliable landmark for tibial mechanical axes of osteoarthritic knees that underwent total knee arthroplasty [Elektronische Daten] [Yuichi Kuroda, Kazunari Ishida, Tomoyuki Matsumoto, Hiroshi Sasaki, Tokio Matsuzaki, Shinya Oka, Koji Takayama, Katsumasa Tei, Takehiko Matsushita, Nobuhiro Tsumura, Ryosuke Kuroda, Masahiro Kurosaka] Purpose: The sagittal fibular axis serves as an intra-operative landmark during conventional total knee arthroplasty (TKA); however, only a few relevant anatomical studies have been published regarding its use as an extramedullary guide. Furthermore, the correlation between the coronal fibular and tibial mechanical axes in osteoarthritic knees has been only reported once. Here, the hypothesis of this study is that the fibula can be a reliable intra-operative landmark, in the sagittal and coronal planes, among patients with osteoarthritis who have undergone TKA. Methods: Osteoarthritic knees (n=62) after TKA were evaluated using three-dimensional image-matching software. The angles between the tibial mechanical axis and the fibular shaft axis were measured in the sagittal and coronal planes. Moreover, correlations between the angles and patient-specific factors were evaluated. Results: The mean angle between the tibial mechanical and fibular shaft axes was 2.6°±2.3° for posterior inclination in the sagittal plane and 0.9°±2.0° for varus inclination in the coronal plane. The percentage of subjects with the fibular shaft axis within 2° of the tibial mechanical axis was 17.7 and 69.3% in the sagittal and coronal planes, respectively. No patient-specific factors were correlated with the angle between the tibial mechanical and fibular shaft axes. Conclusions: The angle between the tibial mechanical and fibular shaft axes differed among patients, independent of patient-specific factors, and did not appear to be a reliable intra-operative landmark. Surgeons should use values from individual pre-operative evaluations of the axis as reference for conventional TKA. Level of evidence: Case series with no comparison group, Level IV. Springer-Verlag Berlin Heidelberg, 2014 Total knee arthroplasty nationallicence Fibula axis nationallicence Surgical technique nationallicence Anatomical landmark nationallicence Tibial slope nationallicence Kuroda Yuichi Department of Orthopaedic Surgery, Hyogo Rehabilitation Center Hospital, Kobe, Japan aut Ishida Kazunari Department of Orthopaedic Surgery, Kobe Kaisei Hospital, 3-11-15, Shinohara-Kita, Nada, 657-0068, Kobe, Japan aut Matsumoto Tomoyuki Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut Sasaki Hiroshi Department of Orthopaedic Surgery, Kobe Kaisei Hospital, 3-11-15, Shinohara-Kita, Nada, 657-0068, Kobe, Japan aut Matsuzaki Tokio Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut Oka Shinya Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut Takayama Koji Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut Tei Katsumasa Department of Orthopaedic Surgery, Chibune General Hospital, Osaka, Japan aut Matsushita Takehiko Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut Tsumura Nobuhiro Department of Orthopaedic Surgery, Hyogo Rehabilitation Center Hospital, Kobe, Japan aut Kuroda Ryosuke Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut Kurosaka Masahiro Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/11(2015-11-01), 3362-3367 0942-2056 23:11<3362 2015 23 167 https://doi.org/10.1007/s00167-014-3170-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-3170-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kuroda Yuichi Department of Orthopaedic Surgery, Hyogo Rehabilitation Center Hospital, Kobe, Japan aut NATIONALLICENCE 700 1- Ishida Kazunari Department of Orthopaedic Surgery, Kobe Kaisei Hospital, 3-11-15, Shinohara-Kita, Nada, 657-0068, Kobe, Japan aut NATIONALLICENCE 700 1- Matsumoto Tomoyuki Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut NATIONALLICENCE 700 1- Sasaki Hiroshi Department of Orthopaedic Surgery, Kobe Kaisei Hospital, 3-11-15, Shinohara-Kita, Nada, 657-0068, Kobe, Japan aut NATIONALLICENCE 700 1- Matsuzaki Tokio Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut NATIONALLICENCE 700 1- Oka Shinya Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut NATIONALLICENCE 700 1- Takayama Koji Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut NATIONALLICENCE 700 1- Tei Katsumasa Department of Orthopaedic Surgery, Chibune General Hospital, Osaka, Japan aut NATIONALLICENCE 700 1- Matsushita Takehiko Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut NATIONALLICENCE 700 1- Tsumura Nobuhiro Department of Orthopaedic Surgery, Hyogo Rehabilitation Center Hospital, Kobe, Japan aut NATIONALLICENCE 700 1- Kuroda Ryosuke Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut NATIONALLICENCE 700 1- Kurosaka Masahiro Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/11(2015-11-01), 3362-3367 0942-2056 23:11<3362 2015 23 167