Ti-Bond Coating Shows Five-Times Greater Shear Strength Than PEEK Devices
Data presented at the Spine Technology and Educational Group meeting, held from 20th to 22nd June, in Los Cabos, Mexico, from a study that compared bone response with the presence of an implant device (implants manufactured from porous titanium coated polyetheretherketone [PEEK] were compared with devices made from PEEK and coated with Spinal Elements' Ti-Bond coating), showed that the devices coated with Ti-Bond had a shear strength approximately five-times that of the PEEK devices. The samples were examined at a four-week time point. Additionally, histologic review showed that fibrous tissue had formed around the PEEK implant devices while the devices with Ti-Bond coating had bone forming in the porosity of the coating.
Device testing was performed by Professor William Walsh, PhD at the University of New South Wales, Prince of Wales Clinical School in Sydney, Australia, while the data were presented by spine surgeon, Scott H Kitchel, MD, of Eugene, Oregon. Ti-Bond coating consists of random, unconnected titanium pores, that are biomechanically adhered through a plasma vacuum spray process to the superior and inferior surfaces of its PEEK-Optima interbody implants. This results in an ideal bone-opposing surface while allowing for direct visualisation of the fusion mass through the radiolucent PEEK material.
According to Kitchel, 'The potential clinical benefits of this technology are tremendous. Now we have a device that is participating in the fusion process where we did not previously have that option. The ability to get stable fixation in a spinal fusion earlier in the post-operative healing process may lead to improved long-term patient outcomes.'