48: Reading an article from The O&P Edge July 2018 written by Maria St. Louis-Sanchez. A very interesting article about an osseointegration prosthesis. 

LINKS: 

Daniel Allison, MD

O.P.R.A - Osseoanchored Prosthesis - FDA Approved

Vicky Graham, PT, DPT, OCS, NCS

Rheo Knee XC

Pro-Flex Foot