Application of the Month: A New 3D Printing Material to Create Bone Grafts

As research into 3D printing materials progresses, more and more innovative projects are emerging in a multitude of sectors. This time, we want to highlight a medical application linked to additive manufacturing that was carried out by researchers at the University of Waterloo. The team has created an innovative material that mimics the properties of bone tissue and promises to revolutionize the treatment of patients undergoing reconstructive surgery and bone repair. The new material, a biopolymer nanocomposite, can be used in resin 3D printers to manufacture customized bone grafts tailored to the needs of individual patients.

Currently, major surgical reconstructions rely on metal implants and donated bone. However, these often don’t fit the patient’s anatomy perfectly, and can be rejected by the recipient’s body. This is why many medical centers and hospitals are turning to 3D printing. The capacity of 3D printing materials offers an alternative that could reduce the need for metal implants, lower the risk of infection and improve graft acceptance by the patient’s body.

Dr. Maud Gorbet observes osteoclasts (cells that eat and resorb bone) in a 3D-printed nanocomposite material.

Improved Bone Grafts Thanks to 3D Printing

The material developed by the researchers incorporates nanoparticles that mimic the mineral composition of bone, reinforcing the biopolymer. The ultimate goal is for the patient’s own bone cells to grow and replace the nanocomposite with “new” bone, allowing the material to be eliminated naturally from the body.