This reminds me of a climbing trip to the Tetons when I was glissading down Middle Teton Glacier and one foot punched through into a crevasse. That knee went backwards. The next week was not kind. I went up and down stairs on my ass and ate ibuprofen. A week later we packed into the Wind Rivers and did a bunch of technical routes on peaks like Pingora, Warbonnet, etc. The young heal fast.