Torsion Tool: An automated tool for personalising femoral and tibial geometries in OpenSim musculoskeletal models

JOURNAL OF BIOMECHANICS

卷:125

Article

Veerkamp, Kirsten^1,2,3,4  Kainz, Hans⁵  Killen, Bryce A.⁶  Jonasdottir, Hulda^1,7  van der Krogt, Marjolein M.¹ 

[1] Vrije Univ Amsterdam, Dept Rehabil Med, Amsterdam Movement Sci, Amsterdam UMC, de Boelelaan 1117, Amsterdam, Netherlands

[2] Griffith Univ, Sch Allied Hlth Sci, Gold Coast, Australia

[3] Griffith Univ, Griffith Ctr Biomed & Rehabil Engn GCORE, Menzies Hlth Inst Queensland, Gold Coast, Australia

[4] Griffith Univ, Adv Design & Prototyping Technol Inst ADAPT, Gold Coast, Australia

[5] Univ Vienna, Ctr Sport Sci & Univ Sports, Dept Biomech Kinesiol & Comp Sci Sport, Vienna, Austria

[6] Katholieke Univ Leuven, Dept Movement Sci, Human Movement Biomech Res Grp, Leuven, Belgium

[7] Delft Univ Technol, Fac Mech Maritime & Mat Engn 3mE, Dept Biomech Engn, Delft, Netherlands

关键词: Musculoskeletal modeling;    Femoral anteversion;    Tibial torsion;    Cerebral palsy;    Subject-specific;   

DOI  :  10.1016/j.jbiomech.2021.110589

来源: Elsevier

【 摘 要 】

Common practice in musculoskeletal modelling is to use scaled musculoskeletal models based on a healthy adult, but this does not consider subject-specific geometry, such as tibial torsion and femoral neck-shaft and anteversion angles (NSA and AVA). The aims of this study were to (1) develop an automated tool for creating OpenSim models with subject-specific tibial torsion and femoral NSA and AVA, (2) evaluate the femoral component, and (3) release the tool open-source. The Torsion Tool (https://simtk.org/projects/torsiontool) is a MATLAB-based tool that requires an individual's tibial torsion, NSA and AVA estimates as input and rotates corresponding bones and associated muscle points of a generic musculoskeletal model. Performance of the Torsion Tool was evaluated comparing femur bones as personalised with the Torsion Tool and scaled generic femurs with manually segmented bones as golden standard for six typically developing children and thirteen children with cerebral palsy. The tool generated femur geometries closer to the segmentations, with lower maximum (-19%) and root mean square (-18%) errors and higher Jaccard indices (+9%) compared to generic femurs. Furthermore, the tool resulted in larger improvements for participants with higher NSA and AVA deviations. The Torsion Tool allows an automatic, fast, and user-friendly way of personalising femoral and tibial geometry in an OpenSim musculoskeletal model. Personalisation is expected to be particularly relevant in pathological populations, as will be further investigated by evaluating the effects on simulation outcomes.

【 授权许可】

Free