caa a22 4500 605456429 CHVBK 20210128100217.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00167-014-3154-7 doi (NATIONALLICENCE)springer-10.1007/s00167-014-3154-7 Mini-midvastus total knee arthroplasty does not result in superior gait pattern [Elektronische Daten] [M. Liebensteiner, M. Thaler, J. Giesinger, S. Fischler, D. Coraça-Huber, M. Krismer, E. Mayr] Purpose: Previous studies dealing with gait after minimally invasive surgery (MIS) total knee arthroplasty (TKA) are rare and insufficient. It was the purpose of the study to determine in a prospective, comparative setting whether MIS influences the outcome of TKA in terms of typical 3D gait parameters. Methods: Patients scheduled for TKA or MIS TKA were invited to participate. MIS TKA was defined as TKA with shorter skin incision, mini-midvastus arthrotomy, special instruments, and avoidance of tibiofemoral dislocation and patella eversion. All other intra- and perioperative aspects were identical for both groups. A 3D gait analysis was performed with a VICON system 1month preoperative and 8weeks post-operative. A multivariate analysis of variance was conducted including the main effects time (pre- and post-surgery) and surgical group and the group-by-time interaction effect. Results: Seventeen MIS TKA patients and 20 TKA patients were eligible for the final analysis. We determined neither inter-group differences nor time×group interactions for any gait variables (temporospatial, ground reaction forces, joint angles and joint moments)—except for the varus-valgus knee kinematics. In pre- to post-operative comparison, the maximum valgus sway increased in the MIS group, whereas it decreased in the conventional group (p=0.001). Conclusion: From our findings, it was concluded that MIS TKA does not result in a superior walking pattern 8weeks post-operative. Because we previously also observed mini-midvastus MIS TKA to have equal or slightly inferior results with regard to knee scores, knee torque, radiographic outcome and tourniquet/operating time, we discontinued the procedure. Level of evidence: Prospective comparative study, Therapy, Level II. The Author(s), 2014 Total knee replacement nationallicence Ambulation nationallicence Walking patterns nationallicence Mini-midvastus approach nationallicence Liebensteiner M. Department of Orthopaedic Surgery, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria aut Thaler M. Department of Orthopaedic Surgery, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria aut Giesinger J. Department of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands aut Fischler S. Department of Orthopaedic Surgery, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria aut Coraça-Huber D. Department for Experimental Orthopaedics, Innsbruck Medical University, Innsbruck, Austria aut Krismer M. Department of Orthopaedic Surgery, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria aut Mayr E. Department of Orthopaedic Surgery, Celle General Hospital, Celle, Germany aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/6(2015-06-01), 1699-1705 0942-2056 23:6<1699 2015 23 167 https://doi.org/10.1007/s00167-014-3154-7 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/s00167-014-3154-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liebensteiner M. Department of Orthopaedic Surgery, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Thaler M. Department of Orthopaedic Surgery, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Giesinger J. Department of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands aut NATIONALLICENCE 700 1- Fischler S. Department of Orthopaedic Surgery, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Coraça-Huber D. Department for Experimental Orthopaedics, Innsbruck Medical University, Innsbruck, Austria aut NATIONALLICENCE 700 1- Krismer M. Department of Orthopaedic Surgery, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Mayr E. Department of Orthopaedic Surgery, Celle General Hospital, Celle, Germany aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/6(2015-06-01), 1699-1705 0942-2056 23:6<1699 2015 23 167