I said to have the rear suspension checked based on the damage to the wheel, and incidentally the repair should include a new wheel, but that would also include the frame like looney2nes mentioned. Most cars today have independent rear suspension so if one wheel gets hit that side can be knocked out of alignment. Independent rear suspension means a four wheel wheel alignment so make sure you get that looked at by a trustworthy mechanic or the dealer who'll want to sell you everything under the sun.