RHA prostheses that replace your radial head are inserted directly into the remaining radius bone, and they sometimes loosen over time. A radial head arthroplasty (RHA) is a procedure to replace the ...

Alex Smith was 11 years old when he lost his right arm in 2003. A drunk driver operating a boat collided with his family’s vessel on Lake Austin, sending him overboard. He hit a propeller, and his arm ...