ok, what if I need 1 month and I'm good?
The temporary 100% rating may continue for 1 to 3 months depending on your case. You may be able to get an extension for up to 3 more months if your case is severe.
is there a scenario where someone can get benefits without surgery?
If no surgery was performed then you must have one or more major joints immobilized by a cast to get disability benefits.