Breakthroughs in modern spine research and

the development of new therapeutic and

curative techniques and technologies require

an efficient and biomechanically accurate

means of obtaining reliable test data.To meet

this challenge, Applied Test Systems (ATS)

has developed the Series FS20

Biomechanical Spine Test System, capable of

performing flexion/extension, lateral

bending, and torsion testing of cadaveric

spine specimens in physiological loading

conditions that simulate natural movement

of the human spine through a full range of

motion.The FS20 has been developed in

close cooperation with major U.S. research

universities to provide an improved testing

setup that offers unhindered specimen

access and unconstrained movements,

resulting in superior test data and more

reliable testing over a wider range of

specimens, for solid results you and your

team can depend on.

FS20 Biomechanical Spine Test System



Key Features

› Single-column, open-frame construction provides large specimen capacity and 360° specimen access, allowing ease of loading and attachment of a variety of measurement devices.

› Dual rotatable arms enable testing in different test modes without disturbing the specimen setup, and the vertical height of the arms can be adjusted to suit a wide range of specimens.

› Two independent drive modules with precision torque transducers, including a torsion drive as well as a bending/flexion/extension drive, allow for smooth simulation and testing over a full range of spinal motion.

› The FS20’s proprietary computer control system collects data during testing with software that integrates into several popular motion-capture systems.

› Data is collected into a CSV file for easy database integration, enabling immediate analysis, graphing, and report generation.

› Testing routines and procedures are easily programmed and stored for repeat testing.

› Software includes multilingual capabilities.


20 Nm (14.75 ft.-lb.) torque capacity in both torsion and flexion/extension drives.

76.2 to 132.1 cm (30” to 52”) specimen mounting height (adjustable).

180° range of bending/flexion/extension load application.

76.2 cm (30”) radius working area needed.

Torsion drive movement range:

– X-axis (side-to-side): 31.8 cm (12.5”)

– Y-axis (forward/back): 29.2 cm (11.5”)

– Z-axis (up/down): 14.0 cm (5.5”)

Bending/flexion/extension drive range:

– X-axis (side-to-side): 31.8 cm (12.5”)

– Y-axis (forward/back): 17.8 cm (7.0”)

– Z-axis (up/down): 14.0 cm (5.5”)

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