Cancer

Updated 17 September 2015

Cancer patient receives 3-D printed ribs

A Spanish man who was diagnosed with a cancerous sarcoma in the wall of his chest has received a 3-D printed implant to replace his sternum and some of his ribs.

0

After being diagnosed with a chest wall sarcoma, a 54-year-old Spanish man's surgical team made the decision to remove his sternum and a portion of his rib cage and replace it with an implant.

A sarcoma is a rare type of cancer that usually originates in connective tissue.

The implant was designed and manufactured by medical device company, Anatomics, who utilised the CSIRO's 3D printing facility, Lab 22 in Melbourne, Australia.

The surgical team, Dr José Aranda, Dr Marcelo Jimene and Dr Gonzalo Varela from Salamanca University Hospital, knew the surgery would be difficult due to the complicated geometries involved in the chest cavity.

The procedure has been described in the European Journal of Cardio-Thoracic Surgery.

"We thought, maybe we could create a new type of implant that we could fully customise to replicate the intricate structures of the sternum and ribs," Dr Aranda said.

"We wanted to provide a safer option for our patient, and improve their recovery post-surgery."

That's when the surgeons turned to Anatomics.

After assessing the complexity of the requirements, Anatomics CEO Andrew Batty said the solution lay in metallic 3D printing.

"We wanted to 3D print the implant from titanium because of its complex geometry and design," Mr Batty said.

"While titanium implants have previously been used in chest surgery, designs have not considered the issues surrounding long term fixation.

"Flat and plate implants rely on screws for rigid fixation that may come loose over time. This can increase the risk of complications and the possibility of reoperation."

Through 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.

"From this, we were able to design an implant with a rigid sternal core and semi-flexible titanium rods to act as prosthetic ribs attached to the sternum," Mr Batty said.

Working with experts at CSIRO's 3D printing facility Lab 22, the team then manufactured the implant out of surgical grade titanium alloy.

"We built the implant using our $1.3 million Arcam printer," Alex Kingsbury from CSIRO's manufacturing team said.

"The printer works by directing an electron beam at a bed of titanium powder in order to melt it. This process is then repeated, building the product up layer-by-layer until you have a complete implant.

"3D printing has significant advantages over traditional manufacturing methods, particularly for biomedical applications.

"As well as being customisable, it also allows for rapid prototyping - which can make a big difference if a patient is waiting for surgery."

Once the prosthesis was complete it was couriered to Spain and implanted into the patient.

"The operation was very successful," Dr Aranda said.

"Thanks to 3D printing technology and a unique resection template, we were able to create a body part that was fully customised and fitted like a glove."

Read more:

Genetic screenings for all cancer patients not feasible

Scientists turn to aspirin to turbo-charge immunotherapy

Penelope Cruz to play cancer patient in new film

EurekAlert

 

Ask the Expert

Cancer expert

CANSA’s purpose is to lead the fight against cancer in South Africa. Its mission is to be the preferred non-profit organisation that enables research, educates the public and provides support to all people affected by cancer. Questions are answered by CANSA’s Head of Health Professor Michael Herbst and Head of Advocacy Magdalene Seguin. For more information, visit cansa.org.za.

Still have a question?

Get free advice from our panel of experts

The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.

* You must accept our condition

Forum Rules