Pioneering New Material for 3D Printed Bone Replacements as Featured on 3DPrinting.com


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In a recent interview with TCT Magazine, Daniel Bomze, Director of Medical Solutions at Lithoz, shared information on their innovative Lithabone HA 480 material used for 3D printed bone replacements. This material is bioabsorbable and based on hydroxyapatite, which enhances the design and usability of bone graft substitutes. Some of the notable features of Lithabone HA 480 include increased wall thickness (ranging from 1.6mm to 10mm), less overpolymerisation and an extended shelf life.

The LithaBone HA 480 deals with the challenges of traditional bone implants, which are unable to adapt to tissue growth, especially in children. This limitation is a major concern in situations like hydrocephalus where repeated surgical revisions are required. However, the new material allows for the design of complex and patient-specific geometries that were unattainable with previous subtractive manufacturing techniques.

In the words of Bomze, “You can now actually manufacture implants with 3D printing and generate those open, porous, interconnected networks which allow the ingrowth of the bulk of the blood vessels and the removal of metabolic products, which is crucial for the healing process.”

“Additive manufacturing uniquely allows for the creation of the pore geometry and the connection between the pores. There are other ways to shape these materials, but none are as effective.”

The development of LithaBone HA 480 was greatly influenced by user feedback from previous bone graft materials. There were challenges to overcome in areas of material stiffness that limited design possibilities, and storage issues due to deep-freezing requirements during transportation. These improvements were made based on the feedback.

Bomze anticipates significant advancements from Lithoz’s clients in the application of this unique technology. He believes these advancements will change the perception of ceramic 3D printing in the medical field, offering innovative solutions for patients and surgeons. 3D printing in medicine, especially with materials like Lithabone HA 480, is suggesting a paradigm shift in patient-specific treatments and surgical procedures. The improved material properties and user-driven enhancements point towards a progressive trend of more adaptable, efficient and patient-friendly medical solutions.

Source: tctmagazine.com

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