Spinal Disc Wear Testing
Spinal disc wear testing is performed according to standard loading and displacement parameters for the cervical and lumbar spine. Generally, six samples are tested up to 10 million cycles with two load soak stations using the OIC’s AMTI hip simulator. Wear is determined through gravimetric analysis at various intervals throughout the test (ISO 14242-2). Test fluid samples may be collected and examined for wear particle characterization as described in ASTM F1877 and ASTM F561. Wear patterns may be evaluated further using microscopic imaging.
This standard may be customized to suite the design and needs of your spinal device.
ASTM F2423 describes similar wear test methods for spinal disc replacements.
