Increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy—a multibody simulation

Abstract Background The ascending or descending extended biplanar tibial cut in open wedge high tibial osteotomy (owHTO) not only changes the lower limb anatomy in the coronal plane but also leads to different three-dimensional (3D) changes in the patellofemoral joint. This study aimed to perform a...

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Main Authors: Maximilian Jörgens, Sonja Ehreiser, Lennart Schroeder, Julius Watrinet, Wolfgang Böcker, Boris Michael Holzapfel, Klaus Radermacher, Julian Fürmetz
Format: Article
Language:English
Published: BMC 2024-11-01
Series:Knee Surgery & Related Research
Subjects:
Online Access:https://doi.org/10.1186/s43019-024-00244-3
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author Maximilian Jörgens
Sonja Ehreiser
Lennart Schroeder
Julius Watrinet
Wolfgang Böcker
Boris Michael Holzapfel
Klaus Radermacher
Julian Fürmetz
author_facet Maximilian Jörgens
Sonja Ehreiser
Lennart Schroeder
Julius Watrinet
Wolfgang Böcker
Boris Michael Holzapfel
Klaus Radermacher
Julian Fürmetz
author_sort Maximilian Jörgens
collection DOAJ
description Abstract Background The ascending or descending extended biplanar tibial cut in open wedge high tibial osteotomy (owHTO) not only changes the lower limb anatomy in the coronal plane but also leads to different three-dimensional (3D) changes in the patellofemoral joint. This study aimed to perform a comprehensive analysis of the dynamic biomechanical changes in the knee joint using a multibody simulation model. Methods Thirteen 3D computer models derived from lower limb computer tomography scans were used for owHTO. Osteotomies with ascending or descending biplanar cut were simulated for each wedge height from 6 to 12 mm (in 1-mm intervals). Multibody simulation was used to analyze differences in patellar shift, patellar tilt, mediolateral patellar rotation, and tibiofemoral rotation during a squat simulation from 5° to 100° knee flexion. Results The main effects of an ascending compared with a descending extended biplanar cut in owHTO were characterized by an increase in lateralization of the patella and rotation, along with reduced tilt. Linear mixed models revealed statistically significant effects of both wedge height and cut variant on knee kinematics at 100° knee flexion, with the influence of the cut variant (ascending/descending) being higher on all analyzed kinematic parameters. Conclusions Significant differences in the changes in patellofemoral shift, tilt, rotation, and tibiofemoral rotation were observed when performing owHTO with an ascending versus a descending biplanar cut. Apart from tibiofemoral rotation, the resulting kinematic changes were greater with an ascending cut.
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spelling doaj-art-5f97203da4f149d1bd3d10ead7a9a75d2024-11-24T12:31:17ZengBMCKnee Surgery & Related Research2234-24512024-11-0136111010.1186/s43019-024-00244-3Increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy—a multibody simulationMaximilian Jörgens0Sonja Ehreiser1Lennart Schroeder2Julius Watrinet3Wolfgang Böcker4Boris Michael Holzapfel5Klaus Radermacher6Julian Fürmetz7Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMUChair of Medical Engineering, Helmholtz Institute for Biomedical Engineering, RWTH Aachen UniversityDepartment of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMUDepartment of Trauma Surgery, BG Unfallklinik MurnauDepartment of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMUDepartment of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMUChair of Medical Engineering, Helmholtz Institute for Biomedical Engineering, RWTH Aachen UniversityDepartment of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMUAbstract Background The ascending or descending extended biplanar tibial cut in open wedge high tibial osteotomy (owHTO) not only changes the lower limb anatomy in the coronal plane but also leads to different three-dimensional (3D) changes in the patellofemoral joint. This study aimed to perform a comprehensive analysis of the dynamic biomechanical changes in the knee joint using a multibody simulation model. Methods Thirteen 3D computer models derived from lower limb computer tomography scans were used for owHTO. Osteotomies with ascending or descending biplanar cut were simulated for each wedge height from 6 to 12 mm (in 1-mm intervals). Multibody simulation was used to analyze differences in patellar shift, patellar tilt, mediolateral patellar rotation, and tibiofemoral rotation during a squat simulation from 5° to 100° knee flexion. Results The main effects of an ascending compared with a descending extended biplanar cut in owHTO were characterized by an increase in lateralization of the patella and rotation, along with reduced tilt. Linear mixed models revealed statistically significant effects of both wedge height and cut variant on knee kinematics at 100° knee flexion, with the influence of the cut variant (ascending/descending) being higher on all analyzed kinematic parameters. Conclusions Significant differences in the changes in patellofemoral shift, tilt, rotation, and tibiofemoral rotation were observed when performing owHTO with an ascending versus a descending biplanar cut. Apart from tibiofemoral rotation, the resulting kinematic changes were greater with an ascending cut.https://doi.org/10.1186/s43019-024-00244-3Open wedge high tibial osteotomyBiplanar cutMultibody simulationBiomechanics of the kneePatellofemoral tracking
spellingShingle Maximilian Jörgens
Sonja Ehreiser
Lennart Schroeder
Julius Watrinet
Wolfgang Böcker
Boris Michael Holzapfel
Klaus Radermacher
Julian Fürmetz
Increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy—a multibody simulation
Knee Surgery & Related Research
Open wedge high tibial osteotomy
Biplanar cut
Multibody simulation
Biomechanics of the knee
Patellofemoral tracking
title Increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy—a multibody simulation
title_full Increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy—a multibody simulation
title_fullStr Increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy—a multibody simulation
title_full_unstemmed Increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy—a multibody simulation
title_short Increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy—a multibody simulation
title_sort increased kinematic changes in ascending compared with descending biplanar cut in open wedge high tibial osteotomy a multibody simulation
topic Open wedge high tibial osteotomy
Biplanar cut
Multibody simulation
Biomechanics of the knee
Patellofemoral tracking
url https://doi.org/10.1186/s43019-024-00244-3
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