Bad wrist, exercise alternatives

I have a ganglion cyst in my left wrist which can cause me a lot of pain. It also prevents me from bending it and applying pressure (so push ups are excruciating!). This is a bummer for me and unfortunately, isn't something I can fix. I can have the cyst removed, but there is no guarantee it won't come back, so working around it is something I will need to get used to. I am starting Jillian Michael's Body Revolution on Monday and I'm looking for alternatives for any exercises that would involve putting weight on that wrist while it's bent. I can do push ups on my knuckles, but is this safe to do for exercises like burpees?

Thanks in advance!