I only heared displaced in this sense. I'd say dislocated/dislodged can be used if you twist you arm so that it comes out of the joint.
Uprooted sounds too formal for this, as in: They tried to uproot the customs of theirs.
I think uprooted and displaced are both fine. I agree with kelt that "dislocated" sounds like a joint gone wrong. "Dislodged" refers to something that was tightly stuck that came loose, in my experience.