Re: Aikido After Hip Replacement
I trained in aikido under Fumio Toyoda Shihan for several years when I was younger. I stopped when I was in my late 20s for several reasons, primarily because my hip pain (from a congenital defect) had gotten so bad.
I finally got the hip replaced 2 years ago (at age 48), and started training in Aikido again, now under Andy Sato Shihan. I try to avoid breakfalls on that side, but in general my hip is better than it's been since before the trouble started (when I was 16). Sometimes I forget I have an artificial joint--though they're always cheerful about reminding me at airport security. ;-)
I think with careful rehabilitation and physician's advice, you will have no trouble continuing your training. For me, it has made a world of (positive) difference.