Measurement traceability for 3D printed medical implants

3D printed medical implant, Aalto University

EMPIR project brings measurement traceability to additively manufactured medical implants that have the potential to revolutionise medicine

The use of implanted medical devices to replace, repair or support the normal function of the human body has been one of the greatest medical successes of the 20th Century.

Improvements in such things as maxillo-facial implants and knee joint replacements are set to continue and way to do this is by the use of additive manufacturing (AM). Also commonly known as 3D printing this technique allows custom implants to be specifically tailored to patient needs, including grafts that promote bone growth as well as clinical guides that help surgeons.


However, this technology has advanced at a much faster pace than existing regulations and quality controls. Until recently there was a lack of knowledge about the areas of measurement uncertainty in the chain - from the generation of the part to the final implantation in the patient.

The European Metrology Programme for Innovation and Research (EMPIR) project Metrology for additively manufactured medical implants (MetAMMI, 15HLT09) brought together experts from national measurement institutes, medicine and academia to address this measurement need.

The project achievements include:

Results have now been incorporated into a second good practice guideDetection and Prevention of Geometrical Deviations in Additively Manufactured Medical Implants’.

The quantification of the build-up of errors from each part of the whole implant chain, from manufacture to eventual clinical use was examined for:

The results of this work has been summarised in the document ‘Report on case studies: demonstrating the errors related to each manufacturing step from medical imaging to patient application’

As well as the guides this highly successful project has also published over 13 publications in scientific journals.

Anne-Francoise Obaton who coordinated the project said about the work:

“Scientific collaborations in such a consortium with partners from the medical sector, NMI and academia from all over Europe is very beneficial to clearly identify the needs from the medical sector, and share expertise and work to meet its needs”.

For the first time measurement traceability is available for 3D printed medical implants – which will enable the medical technology sector to benefit from this innovative manufacturing technique, an important step towards increased access to high-quality, low-cost medical devices across Europe. 

This EMPIR project is co-funded by the European Union's Horizon 2020 research and innovation programme and the EMPIR Participating States.

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