I don't know whether it compares, but I had an accident in 1999 that resulted in an operation to remove and realign my kneecap. It involved severing the thigh muscle just above the knee, which rendered that leg absolutely useless. No muscle or nerve connections. I literally had to move the leg using either my hands or by hooking my other foot underneath the ankle and moving it that way. And then I had to relearn to walk. I'm now relearning to skate. Admittedly, I do have to still be careful as the connection between brain and leg isn't perfect and the leg has no muscle memory, so if I stand up without thinking it through after sitting down for a while, I'll just fall over when I try to walk! Apparently it's quite entertaining, especially on a slope...
But I can skate and get the leg to do most things now, despite the nerve damage. I didn't lose muscle, though. It was still there, just not attached. Very strange at the time!
Good luck!