A New Model-Based Tracking Technique for Measuring and Visualisation of Three-Dimensional Motion of the Lumbar Spin
Keywords:
Biomechanics, Kinematics, Optical Tracking, Movement AnalysisAbstract
There are different methods to detect three-dimensional motions in biomechanical testing. Optical motion analysis or ultrasound-based systems seem to be the gold standard and have been described in previous studies. However, measuring the three-dimensional motion of a complex structure such as the lumbar spine is still challenging. With the current study, we introduce a new method to measure and at the same time to visualise the complex three-dimensional motion of the lumbar spine. It is a model-based tracking technique. We matched the three-dimensional motion of a lumbar spine with an optical motion analysis system. This was conducted in a spine testing machine with a 3D reconstruction from a CT scan. This method allows for visualization of the in vitro recorded motion of a lumbar spine using a normal CT dataset. Furthermore, the motion of the lumbar spine could be analysed in areas that were not seen by the two cameras of the optical motion tracking system. This method facilitates future research of the locomotor systemusingcomplex motion analysis in biomechanical testing.
References
Oliveira AC, Sulzer JS, Deshpande AD. “Assessment of Upperextremity Joint Angles using Harmony Exoskeleton.” IEEE Trans Neural Syst Rehabil Eng (2021).
McHugh B, Akhbari B, Morton AM, Moore DC, Crisco JJ, et.al. “Optical Motion Capture Accuracy is Task-Dependent in Assessing Wrist Motion.” J Biomech 120 (2021):110362. DOI: 10.47755/J Ortho Clin Rhuem.2021.1.002
Pedro B, Cabral S, Veloso AP. “Concurrent Validity of an Inertial Measurement System in Tennis Forehand Drive.” J Biomech 121(2021):110410.
Shu J, Ma H, Xiong X, Shao B, Zheng T, et.al. “Mathematical Analysis of the Condylar Trajectories in Asymptomatic subjects during mandibular Motions.” Med Biol Eng Comput 59(2021):901-11.
Sikidar A, Marieswaran M, Kalyanasundaram D. “Estimation of Forces on Anterior Cruciate Ligament in Dynamic Activities.” Biomech Model Mechanobiol (2021).
Werkhausen A, Willwacher S, Albracht K. “Medial Gastrocnemius Muscle Fascicles Shorten Throughout Stance During Sprint Acceleration.” Scand J Med Sci Sports (2021).
Konrads C, Ahrend MD, Beyer MR, Stöckle U, Ahmad SS. “Rotation Osteotomy of the Distal Femur Influences Coronal Femoral Alignment and the Ischiofemoral Space.” Arch Orthop Trauma Surg (2020).
Konrads C, Ahrend MD, Beyer MR, Stöckle U, Ahmad SS. Supracondylar rotation osteotomy of the femur influences the coronal alignment of the ankle. J Exp Orthop 8 (2021).
