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China’s largest manufacturer of implants and related surgical instruments for traumatology and spine surgery, Weigao Orthopaedic Device, is offering a spinal stabilisation system called “Tulip”, which uses semi-rigid rods made from PEEK-OPTIMA to bridge the gap between rigid and dynamic systems.
According to Invibio, the system is indicated when one to three levels of the spine, including the lumbosacral region, require posterior pedicle-screw fixation or when fusion surgery is required for a segment of the spine where degenerative disc disease is present. It says that Weigao chose to work with it based on the company’s track record in PEEK solutions.
“Throughout the product development and clinical adoption of our PEEK-OPTIMA semi-rigid rods Invibio was a great help to our company. This includes technical support and testing during the R&D phase,” stated Mr. Kui Yang, Vice General Manager of Sales at Weigao Orthopaedic Device. “Invibio invited, for example, overseas clinical experts to China to exchange experience in PEEK-OPTIMA based semi-rigid-rod techniques. In addition multi-centre programme discussions assisted in launching the product and promoting its clinical adoption. We appreciate the value of our relationship with Invibio, and we hope to continue our collaboration.”
Two types of the domestic manufactured rods are available: a 6.35mm-diameter round rod, and a 6.35 x 7.2mm-diameter oval rod. Following previous CFDA (China Food and Drug Administration) approval of other PEEK-OPTIMA-based products, Invibio explains that the Tulip system received its approval in 2014 and targets China’s Tier-One market for spinal devices as well as Class-Two and Class-Three (top level) hospitals nationally.
Invibio claims that PEEK-OPTIMA polymer-based spinal rod components are bridging the treatment gap between rigid and dynamic systems. It says, according to research results presented in Europe, the rods are strong enough to restore lumbar spine stability and have much lower failure rates than titanium. Spinal rods made from the biocompatible polymer offer numerous advantages, including improved load sharing to encourage fusion, more physiologic loading at adjacent levels, which may decelerate degeneration and reduced stress at the bone-to-screw interface, which may prevent screw pull-out, especially in patients with questionable bone quality. This improved load sharing, plus clear, artefact-free imaging for easy device placement and monitoring, are important advantages that PEEK-OPTIMA provides over metal rods.
According to Weigao, surgeons would choose Tulip PEEK rods spinal stabilisation system on the basis of its outstanding value proposition, the advanced polymer-production technology used, and the high reputation accorded to the Weigao brand.
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