Video Abstract: A key problem with components fabricated with direct metal additive manufacturing methods is that the parts are near net shape.   These parts must be finish machined and, this presents unique challenges especially for small batch sizes of custom parts.   This video describes an NSF funded project that is aimed at addressing this issue.

Transdermal osseointegrated implants offer many advantages for the attachement of prosthetic limbs.  Additive manufacturing was used here to develop a custom Ti6Al4V implant the front limb of a canine patient.

After radiation therapy to treat osteosarcoma, this feline patient required a total knee replacement.  Our group, in collaboration with several industrial partners developed a custom, cobalt-chromium total knee implant which was fabricated by EOS in germany using their laser melting process.

This is a close up view of a non-stochastic mesh structure fabricated with electron beam melting.  The video was taken using our Hirox KH-7700 Digital Microscope:

Cassidy was the first canine patient to recieve a transdermal osseointegrated implant.  The implant was fabricated with the arcam electron beam melting process.

 

This video shows cassidy’s progress walking on his training leg a few weeks after surgery.

 

Back in 2008, Mr. Franz was the first feline patient to recieve a transdermal, osseointegrated implant fabricated with electron beam melting.