Orthopaedics
Orthopaedics Research
In Orthopaedics research, the cost and difficulty of obtaining spine or bone specimens makes every measurement you collect during an experiment of utmost value. In studies like fatigue analysis, you may only get one chance—literally—to measure a fracture at the moment it occurs. 3D and 6DOF (six degrees of freedom) measurements must be carried out with exceptional accuracy and spatial resolution every time. Trust your Orthopaedics research to the solution known for its accuracy, precision, and reliability – the Optotrak Certus 3D measurement system from NDI.
Track and analyze kinetics and dynamic motion in real-time with Optotrak Certus – a powerful research-grade motion capture system that features exceptional spatial and temporal accuracy.
Track Full Range of Motion
Orthopaedic Research Pins are designed specifically for use in Optotrak® orthopaedic research applications
The Optotrak Certus optical 3D measurement system delivers unsurpassed temporal and spatial accuracy throughout a fully calibrated tracking volume. Designed specifically for scientific research, the Optotrak uses markers or marker clusters to track positions and complex motion of a specimen under load or other applied force.
Orthopaedic Research Pins are available for out-of-the-box tracking in all six degrees of freedom, allowing you to measure translations and rotations of individual segments. You can use our pre-defined marker clusters, or create your own for 6DOF tracking. Once a segment is instrumented with a marker cluster, the location of boney landmarks on the segment can be digitized. The position of digitized points will be reported and displayed just like the position of actual markers.
Load may be applied quasi-statically or dynamically; constrained in one dimension, or multidirectional. When measuring actuated joints, the joint can move freely, or be constrained by orthopaedic implants or fixtures. The high-speed Optotrak optical tracker will accurately and reliably capture each movement, no matter how small, or along which axis it occurs.
Accurate and Reproducible Data
Optotrak will track hundreds of markers simultaneously at a high sampling rate. Markers are individually and automatically tracked, eliminating the need for marker sorting and post-processing. Each data point is recorded to an accuracy of 0.1mm and resolution of 0.01mm.
The Optotrak does not rely on 2D image recordings to calculate marker positions via black-box algorithms. You have full access to raw measured data, and can apply custom manipulations to that data. Whether you are quantifying inter-segmental movement for Finite Elements Analysis (FEA); calculating angular and linear load-deformation response; modeling joint elasticity; or conducting other orthopaedic motion studies, the Optotrak provides you with data that is reliable and reproducible.
Image courtesy of Cleveland Clinic BioRobotics Lab
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System Expandability
In addition to collecting motion data, the Optotrak also accurately captures analog data, such as forces and moments generated by a testing frame or robotic actuator. This requires the Optotrak Data Acquisition Unit (ODAU), a high performance 16-bit, 16-channel data acquisition system designed specifically for the Optotrak.
Both motion and analog data are accessible in real time, allowing you to control aspects of the experiment in real time; for example changing the load on a specimen as a function of joint angle. Real-time data is available via TCP/IP or by communicating directly with the Optotrak using the Optotrak API. Data is managed by NDI First Principles software and integrates with third-party data analysis packages.
System Configuration
Optotrak Ortho |
Certus Ortho is designed specifically for Orthopedic research labs. It includes both individual markers for direct measurement of points of interest and marker clusters / rigid bodies for 6DOF tracking. | |
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Optotrak Flex |
The most flexible Optotrak system. Optotrak Flex gives researchers the flexibility to use small markers for face and fingers or Smart markers to save time and minimize wire management. The Optotrak Flex system comes with an assortment of Smart clusters and Smart markers for ultimate flexibility. | |
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