Personalized finger joint implants based on AI

Finger joint dysfunction due to an accident or medical condition requires surgical intervention. The common therapies very often result in stiffening of the joint, interfering with hand function and daily life activities. A new therapy for these patients applies custom-fit prostheses that preserve mobility of the joint while ensuring the necessary stability, achieving remobilization. The FingerKIt consortium, an interdisciplinary collaboration involving the research institution and institutes Fraunhofer MEVIS, IAPT, IKTS, IWM and ITEM, is developing individually adapted joint implants manufactured by 3D printing based on AI. Fraunhofer ITEM is responsible for the validation of the osseointegration and certification compliance. To ensure lifetime functionality for patients, the implant properties must be evaluated. For this purpose, a newly developed test bed forces implants out of bone models while measuring the applied force and acoustic emission, to enable detection of even tiny microcracks (hairline cracks). 

© Fraunhofer IAPT
The FingerKIt implants are manufactured using special 3D printing methods – with a high level of attention to details and with different surface qualities.

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Ulrich Froriep

Contact Press / Media

Dr. Ulrich Froriep

Deputy Division Director of Translational Biomedical Engineering

Phone +49 511 5350-294