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Veterinary 3D Printing Saves Animals Lives With Printed Prosthetics

While caretakers at ZooTampa were performing a routine check-up on a 25-year-old great hornbill, they found a lesion at the base of the bird’s casque, the yellow helmet-like growth on top of the head. Further examination determined that the bird, named Crescent, was suffering from life-threatening cancer.

The great hornbill is one of the most endangered bird species on the planet, driven out of its habitat by forest-clearing and hunted for its casque. Found only in the Indian subcontinent and Southeast Asia, ZooTampa’s hornbill is one of its prized attractions.

The cancer, located near the bird's skull, couldn't be removed because it housed part of the bird's sinuses. The team wanted to know if they could remove the casque, and replace it with a 3D printed replica designed specifically for this bird. Patient-specific prosthetics and devices have been used before in human procedures, but never for a great hornbill. Would it be possible, and if so, which materials would be safe for the bird?

"Clinical literature has shown improved outcomes when patient-specific prosthetics, medical devices, and surgical guides have been used with human patients," Gaurav Manchanda, director of medical market development for Formlabs, said in a statement. "We're thrilled that our technology was also able to bring these same benefits to Crescent."

Biocompatible 3D Printing Materials

ZooTampa says the 3D-printed “replacement beak,” was created using BioMed White Resin. This material is an opaque white material for biocompatible applications requiring long-term skin contact or short-term mucosal contact. This medical-grade material is validated for short-term tissue, bone, and dentin contact.

“An unexpected benefit came when Crescent began preening within hours after surgery,” ZooTampa added. "The resin happened to be compatible with the yellow preening oils secreted from the glands above her tail, giving the new casque the same bright glow as her original one.”

3D Printing for Veterinarians

In the past several years, 3D printing has seen an explosion of growth in the medical field. Hospitals are rapidly innovating with in-house 3D printing, delivering on-demand, customized care through more innovative workflows, patient-matched surgical tools, and visual aids for diagnosis and education.

But veterinarians and vet schools have also taken notice, realizing that many of the same techniques and workflows can be used on animals.

At the Michigan State University College of Veterinary Medicine, patients of all shapes, sizes, and species can come through the door. For Dr. Danielle Marturello, DVM, MS, DACVS and Assistant Professor of Small Animal Orthopedic Surgery, that means that every day is different. Some days she might be in the clinic, seeing dogs and cats brought with bone fractures, skeletal deformities, or ligament tears. On another, she is in the operating room, helping to fix these patients and get them on the road to recovery.

In one particularly complicated case, a dog was brought in with a shattered tibia, very close to the knee. Because the break was so close to the joint, it was difficult to see on an X-ray the full extent of the damage. Dr. Marturello 3D printed the fractured tibia, sterilized the models and made them safe to bring into an operating environment.

Dr. Marturello told us, “We were able to spin around the bone in surgery to help us to have a more tangible three dimensional idea of the fracture pattern. This is important because we only see one side of it with our surgical approach. Having that printed bone, because of the angle of the fracture, was super helpful and though it was a really challenging case, the dog did fabulous. It really helps take that surgery to the next level.”

Veterinarian use cases like ZooTampa illustrate how powerful 3D printing can be for saving the lives of the animals people love. Be it a bird, dog, or human, 3D printing is delivering the future of medical care so the clinical innovators on the front lines can provide quick solutions to even the most unconventional problems.

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