caa a22 4500 605457271 CHVBK 20210128100222.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s00167-014-3085-3 doi (NATIONALLICENCE)springer-10.1007/s00167-014-3085-3 Part I: An anatomic-based tunnel in the fibular head for posterolateral corner reconstruction using magnetic resonance imaging [Elektronische Daten] [Kyle Bohm, Robby Sikka, Joel Boyd, Bret Yonke, Marc Tompkins] Purpose: Currently, there are no studies that clearly define a method for the placement of the fibular tunnel between the fibular collateral ligament (FCL) and popliteofibular ligament (PFL) insertions when performing an anatomic-based posterolateral corner reconstruction. The purpose of this study was to use magnetic resonance-based anatomic landmarks to describe the orientation of a fibular tunnel between the FCL and PFL insertions. Methods: Magnetic resonance imaging (MRI) of 105 patients with normal posterolateral corner knee anatomy was identified by a musculoskeletal radiologist, and the FCL and popliteofibular insertions were labelled. Three experienced providers independently evaluated the images. In the axial plane, the Cobb angle of a fibular tunnel from the FCL to the popliteofibular insertion was measured using the tibial tubercle as a reference. In the sagittal plane, the same tunnel was measured in reference to the lateral tibial plateau. Results: In the axial plane, the average Cobb angle for an anatomic-based fibular tunnel was 48.1°±10.7° (ICC(2,1)=0.76, p<0.01) externally rotated to the tibial tubercle. In the sagittal plane, the average Cobb angle for an anatomic-based fibular tunnel was 59.8°±11.9° (ICC(2,1)=0.81, p<0.01) cranial, referenced from the lateral tibial plateau. The average length of the fibular tunnel was 2.0±0.4cm (ICC(2,1)=0.78, p<0.01), at the point of the fibular insertion. The distance from the midpoint of the fibular tunnel to the posterolateral wall of the fibular head was 0.8±0.2cm (ICC(2,1)=0.63, p<0.01). Conclusions: The results of this study suggest that MRI can be used to identify the orientation between the FCL and PFL insertions to create an anatomic-based fibular tunnel, which is 50° externally rotated from the tibial tubercle in the axial plane and placed in a cranial direction of 60° relative to the lateral joint line. The clinical relevance of this study is that this information may aid surgeons in placing a fibular tunnel connecting the FCL and PFL insertions. Level of evidence: IV. Springer-Verlag Berlin Heidelberg, 2014 Posterolateral corner reconstruction nationallicence MRI nationallicence Fibular tunnel nationallicence Fibular collateral nationallicence Popliteofibular nationallicence Ligament nationallicence Bohm Kyle Department of Orthopedic Surgery, University of Minnesota, 2450 Riverside Ave, Suite R200, 55454, Minneapolis, MN, USA aut Sikka Robby TRIA Orthopaedic Center, 8100 Northland Drive, 55431, Minneapolis, MN, USA aut Boyd Joel Department of Orthopedic Surgery, University of Minnesota, 2450 Riverside Ave, Suite R200, 55454, Minneapolis, MN, USA aut Yonke Bret TRIA Orthopaedic Center, 8100 Northland Drive, 55431, Minneapolis, MN, USA aut Tompkins Marc Department of Orthopedic Surgery, University of Minnesota, 2450 Riverside Ave, Suite R200, 55454, Minneapolis, MN, USA aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/7(2015-07-01), 1889-1894 0942-2056 23:7<1889 2015 23 167 https://doi.org/10.1007/s00167-014-3085-3 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/s00167-014-3085-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bohm Kyle Department of Orthopedic Surgery, University of Minnesota, 2450 Riverside Ave, Suite R200, 55454, Minneapolis, MN, USA aut NATIONALLICENCE 700 1- Sikka Robby TRIA Orthopaedic Center, 8100 Northland Drive, 55431, Minneapolis, MN, USA aut NATIONALLICENCE 700 1- Boyd Joel Department of Orthopedic Surgery, University of Minnesota, 2450 Riverside Ave, Suite R200, 55454, Minneapolis, MN, USA aut NATIONALLICENCE 700 1- Yonke Bret TRIA Orthopaedic Center, 8100 Northland Drive, 55431, Minneapolis, MN, USA aut NATIONALLICENCE 700 1- Tompkins Marc Department of Orthopedic Surgery, University of Minnesota, 2450 Riverside Ave, Suite R200, 55454, Minneapolis, MN, USA aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/7(2015-07-01), 1889-1894 0942-2056 23:7<1889 2015 23 167