caa a22 4500 605456208 CHVBK 20210128100216.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00167-014-3427-1 doi (NATIONALLICENCE)springer-10.1007/s00167-014-3427-1 Kinematics of monoblock bicompartmental knee arthroplasty during weight-bearing activities [Elektronische Daten] [Brian Park, Jorg Leffler, Alois Franz, Nicholas Dunbar, Scott Banks] Purpose: There is an increased interest in treating arthritis of the medial and patellofemoral compartments without using a total knee arthroplasty. The purpose of this study was to measure kinematics in knees with a monoblock bicompartmental arthroplasty to see whether maintaining the cruciate ligaments and lateral compartment resulted in consistent kinematics more similar to healthy knees than those observed in replaced knees. Methods: The kinematics of ten knees with monoblock bicompartmental arthroplasty were observed using fluoroscopy during three weight-bearing activities. Model-image registration techniques were used to quantify the three-dimensional motions of the knee joints. Results: During kneeling, lunging, and stair-step activities, the medial condyle remained relatively close to the centre of the tibial plateau, while the lateral condyle typically moved posteriorly with flexion. Knees generally exhibited motion patterns consistent with retained cruciate ligament function, but individual patterns varied significantly. Conclusions: Bicompartmental knee arthroplasty has the potential to retain more natural knee function. Improved tools for aligning the implants and increased implant sizing options may be required to achieve highly consistent results and realize the clinical benefit of a knee arthroplasty with intact cruciate ligaments. Level of evidence: III. European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA), 2014 Knee nationallicence Kinematics nationallicence Bicompartmental nationallicence Arthroplasty nationallicence Fluoroscopy nationallicence Park Brian Gary J. Miller PhD Orthopaedic Biomechanics Laboratory, Department of Mechanical and Aerospace Engineering, University of Florida, MAE-A 318, 32611-6250, Gainesville, FL, USA aut Leffler Jorg St. Marien-Krankenhaus Klinik für Orthopädie, Siegen, Germany aut Franz Alois St. Marien-Krankenhaus Klinik für Orthopädie, Siegen, Germany aut Dunbar Nicholas Gary J. Miller PhD Orthopaedic Biomechanics Laboratory, Department of Mechanical and Aerospace Engineering, University of Florida, MAE-A 318, 32611-6250, Gainesville, FL, USA aut Banks Scott Gary J. Miller PhD Orthopaedic Biomechanics Laboratory, Department of Mechanical and Aerospace Engineering, University of Florida, MAE-A 318, 32611-6250, Gainesville, FL, USA aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/6(2015-06-01), 1756-1762 0942-2056 23:6<1756 2015 23 167 https://doi.org/10.1007/s00167-014-3427-1 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/s00167-014-3427-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Park Brian Gary J. Miller PhD Orthopaedic Biomechanics Laboratory, Department of Mechanical and Aerospace Engineering, University of Florida, MAE-A 318, 32611-6250, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Leffler Jorg St. Marien-Krankenhaus Klinik für Orthopädie, Siegen, Germany aut NATIONALLICENCE 700 1- Franz Alois St. Marien-Krankenhaus Klinik für Orthopädie, Siegen, Germany aut NATIONALLICENCE 700 1- Dunbar Nicholas Gary J. Miller PhD Orthopaedic Biomechanics Laboratory, Department of Mechanical and Aerospace Engineering, University of Florida, MAE-A 318, 32611-6250, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Banks Scott Gary J. Miller PhD Orthopaedic Biomechanics Laboratory, Department of Mechanical and Aerospace Engineering, University of Florida, MAE-A 318, 32611-6250, Gainesville, FL, USA aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/6(2015-06-01), 1756-1762 0942-2056 23:6<1756 2015 23 167