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Flexi Bones
09 November 2016

Flexi Bones

Tipped to revolutionise the way we produce all sorts of objects, 3D printing is already stimulating innovations in medicine. A new type of 3D-printed bone implant has recently been developed, made of a blend of ceramic powder and plastics, which greatly improves on existing materials. Flexible, easily trimmed and shaped to fit during surgery, this ‘hyperelastic bone’ (HB) is also relatively cheap and fast to produce. In addition, implants in mice and rats and grafts to repair a macaque’s skull have shown that the new material is accepted and effectively stimulates the growth of real bone. Pictured is a cross-section of hyperelastic bone, 35 days after implantation in a mouse: HB fibres, appearing as dark circles, are surrounded by bone tissue, complete with blood vessels, while layers of muscle and skin have re-grown above them. Subject to more tests, this promising new material could be the future of bone repair.

Written by Emmanuelle Briolat

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