It will probably be fine. Give it time.

It should quickly replace the missing leaves. I had a similar experience with a young son and a fuchsia. Both survived the treatment. Al

My avocado has been "pruned" completely or down to just a couple of leaves, and had the top 6" completely broken off by my dog, a deer, and a skunk over the past couple of years. It looks terrible until the next growing season when things finally warm up again and I can get it back outside but every time it comes back fuller and better looking than it did before it was destroyed.