Photo courtesy of Anatomics

3D-Printed Sternum Retrofits to Patient’s Anatomy

Sept. 21, 2015
Sternum and rib implants are especially hard to produce using traditional manufacturing methods, as they are complex and need to meet patient-specific requirements.
Australia’s Commonwealth Scientific and Industrial Research Organization (CSIRO) introduced a customizable, 3D-printed sternum-and-rib implant for patients that need a part of their ribcage replaced. Just such an implant was recently used for a 54-year-old patient with chest wall sarcoma—removal of the tumor also required partial removal of the man’s sternum and ribcage.

For the procedure, a high-resolution CT scan of the tumor and affected ribcage was conducted by Anatomics, a Melbourne-based medical device company. After the scan, it modeled the implant after the patient’s original anatomy, and determined the structure of the implant that would replace the parts that required removal.  

Watch the following interview about the making of the thoracic implant, courtesy of Engineering TV:

Anatomics then brought the design to CSIRO’s 3D-printing facility, which houses an Arcam 3D printer that works with the same titanium used for traditional thoracic implants. Quoted at $1.3 million, the Arcan printer deploys an electron beam to melt the alloy powder as it builds the part layer by layer.  

Thanks to 3D printing, the implant could be retrofitted to the patient’s thoracic structure, and screwed into the bony sections of the ribs. The design-to-production time was much shorter than the regular manufacturing of such a complex part and the patient has remained healthy since the surgery.  

About the Author

Leah Scully | Associate Content Producer

Leah Scully is a graduate of The College of New Jersey. She has a BS degree in Biomedical Engineering with a mechanical specialization.  Leah is responsible for Machine Design’s news items that cover industry trends, research, and applied science and engineering, along with product galleries. Visit her on Facebook, or view her profile on LinkedIn

Sponsored Recommendations

Pumps Push the Boundaries of Low Temperature Technology

June 14, 2024
As an integral part of cryotechnology, KNF pumps facilitate scientific advances in cryostats, allowing them to push temperature boundaries and approach absolute zero.

The entire spectrum of drive technology

June 5, 2024
Read exciting stories about all aspects of maxon drive technology in our magazine.


May 15, 2024
Production equipment is expensive and needs to be protected against input abnormalities such as voltage, current, frequency, and phase to stay online and in operation for the ...

Solenoid Valve Mechanics: Understanding Force Balance Equations

May 13, 2024
When evaluating a solenoid valve for a particular application, it is important to ensure that the valve can both remain in state and transition between its de-energized and fully...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!