I doubt it would be a problem, as long as your doc says you have recovered with no ill effects. If in doubt, contact an aviation medical consultant for advice...might as well do it while you're shoulder is healing in case you need time to do any legwork or tests.

The biggy for the FAA is an unexplained loss of consciousness...a single instance of that can be grounding if you can't come up with a cause, and a subsequent cure.

Where were you skiing? I hope it was something good, off piste...