I have seen some posts hoping this injury heals. Again, I will state for the benefit of all....CCL tears do not heal. The pup will walk on it again, but will have pain and severe arthritis as a result.
Perhaps this link will explain it well for anyone interested:
Yorkie Haven Rescue - Cranial Cruciate Ligament Tear Info
Now, with that said, if a pup starts limping due to LP, then yes, crate rest and meds for two weeks is done. That will heal. Torn ligament? No. Many people don't like to hear that, but it is a fact. I have dealt with many of these injuries in both my own pups and fosters. It is difficult to have them face surgery, but certainly better than them suffering for the rest of their lives.