According to a post I read yesterday, any arrows stuck in your body are placed in your inventory. To remove the arrows, drop them from your inventory. Not sure if there's any way to do this with ice spikes.
If that doesn't work, you can avoid the issue by fighting in first person. If you're on PC, you could also open the console and type 'sixchange' (without the quotes) twice. This will reset your character model without the arrows or ice spikes.
Sure, as DLC for the low price of $19.99.
That's not how bug fixes work.