You should be fine on just about everything. Use plastic wrap if you want to ride the water rides.
As far as I know, if the elbow is not restricted then there shouldn't be a problem on most rides. However as others are stating, water rides are what you may want to stay away from for obvious reasons.
If you keep it tucked into your chest or stomach and dont wave it around you should be able to ride pretty much everything
Call Kentwood.. many rides your thrown aroumd on
Every ride except Water ones and maybe avoid the Thunderbolt, but it's optional.
All but the water rides I would say
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