TheraCell announces first surgical uses of TheraFuze DBF Fiber Bag for graft containment

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theracell fiber bag
TheraCell’s Fiber Bag

TheraCell has announced the completion of the first two spinal surgeries using its novel TheraFuze DBF Fiber Bag—an allograft alternative to the resorbable polymer mesh bag products that are currently on the market.

The first of these cases was a multi-level posterior lumbar decompression and fusion performed by Frank Phillips, endowed professor of spinal deformities, director of the Division of Spine Surgery and section head of minimally-invasive spine surgery at Rush University Medical Center (Chicago, USA).

“The Fiber Bag is the best graft containment solution I have ever used and the only one that is actually a significant graft in itself,” said Phillips. “It’s a true all biologic solution where the containment bag actually participates in the fusion process.”

The second case was completed by Jack Zigler, orthopaedic spine surgeon at the Texas Back Institute and co-director of the Center for Disc Replacement (Plano, USA), who rehydrated the Fiber Bags with aspirated blood from the vertebral body and placed them in the intertransverse gutters.

“I was impressed with how quickly and easily the Fiber Bags absorbed the aspirate,” said Zigler. “The grafts swelled and filled out with gelatinous clot, yet maintained their structure throughout the procedure. Great product and great handling characteristics!”

According to TheraCell, the TheraFuze DBF Fiber Bag is a next-generation posterolateral solution designed to be an improved alternative to both traditional boats and resorbable polymer mesh bags, offering complete containment of graft material within a bag that is itself osteoconductive and osteoinductive.

The Fiber Bag can be packed with additional graft of the surgeon’s choosing, and may be sutured for closure following rehydration. It can also be placed in the posterolateral gutters, in a bone void or cavity, or delivered using minimally-invasive techniques.

The TheraFuze DBF Fiber Bag is made from 100% demineralised cortical bone fibres generated with TheraCell’s patented manufacturing process and formed using its proprietary FiberLok technology—which the company claims allows the bag to maintain its form and integrity after filling and rehydration, permitting manipulation and implantation by the surgeon.

The Fiber Bag is part of TheraCell’s portfolio of TheraFuze DBF procedure-specific graft solutions, and is currently available in the USA directly through the California-based company.


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