By Adam Knight 11th September 2015
3D printed sternum: The ‘chest’ story you’ll hear all week. Image credit: Anatomics
A Spanish cancer patient has received a 3D printed titanium sternum and rib cage designed and manufactured right here in Australia, at our Melbourne-based 3D printing facility in Melbourne.
Suffering from a chest wall sarcoma (a type of cancerous tumour that grows, in this instance, around the rib cage), the 54 year old man needed his sternum and a portion of his rib cage replaced. This part of the chest is notoriously tricky to recreate with prosthetics, due to the complex geometry and design required for each patient. So the patients surgical team determined that a fully customisable 3D printed sternum and rib cage was the best option.
Thats when they turned to Melbourne-based medical device company Anatomics, who designed and manufactured the implant utilising our 3D printing facility, Lab 22.
The news was announced by Industry and Science Minister Ian Macfarlane today.And the news is good, 12 days after the surgery the patient was discharged and has recovered well.
Here’s how the 3D printed sternum and rib cage fit inside the patient’s body. Image: Anatomics
This isnt the first time surgeons have turned the human body into a titanium masterpiece. Thoracic surgeons typically use flat and plate implants for the chest. However, these can come loose over time and increase the risk of complications. The patient’s surgical team at the Salamanca University Hospital thought a fully customised 3D printed implant could replicate the intricate structures of the sternum and ribs, providing a safer option for the patient.
Using high resolution CT data, the Anatomics team was able to create a 3D reconstruction of the chest wall and tumour, allowing the surgeons to plan and accurately define resection margins. We were then called on to print the sternum and rib cage at Lab 22.
As you could imagine, the 3D printer at Officeworks wasnt quite up to this challenge. Instead, we relied on our $1.3 million Arcam printer to build up the implant layer-by-layer with its electron beam, resulting in a brand new implant whichwas promptly couriered to Spain.
This video explains how it all works.
The sternum (the central piece) and the rib cages emanating from it, have been designed using precise scans to perfectly fit in the patient’s chest after he had sections removed. Image credit: Anatomics
The advantage of 3D printing is its rapid prototyping. When youre waiting for life-saving surgery this is the definitely the order of the day.
We are no strangers to biomedical applications of 3D printing: in the past we have used our know-how to create devices like the 3D printed heel-bone, or the 3D printed mouth-guard for sleep apnoea suffers.
When it comes to using 3D printing for biomedical applications, it seems that we are just scratching the surface of whats possible. So, were keen to partner with biomedical manufacturers to see how we can help solve more unique medical challenges.
Media contact: Crystal Ladiges, Phone: +61 3 95452982,Mobile: +61477 336 854 or Email:Crystal.Ladiges@csiro.au