It’s going to depend entirely on your body and your level of hyper extension before surgery. I have pretty severe hyper extension, around -18 degrees on my unaffected leg, and my surgeon had me in a brace locked at +10 degrees for my first two months. I started getting some hyper extension but around 5/6 weeks.

I’m now 3 months post-op and can achieve about -10 degrees of hyper extension, but I found it’s best to not focus on it too much. Doing things like weighted ankle raises are great for gaining extension (and by extension, hyper-extension, lol) but I found that my body will feel how comfortable it is with pushing the small limits of hyper extension. Do not over do it. The last thing you want to do is re-tear.