He says that it might push the patella out of alignment. Not every last yoga exercise under the sun. There might well be a few positions that you shouldn't get into at all and maybe a few more that you should only attempt with one of those neoprene knee braces to restrain the patella, but the rest of yoga should be fine.
Better to do the yoga you can do, and retain the meditation and mental stability, than do none at all.
Until your cartilage has degenerated to the point of being non-existent, there will always be things you can do. Swimming is excellent low impact exercise for the leg muscles. Strengthening them will help keep the patella aligned.
Don't, whatever you do, do what I did and resign yourself to being crippled for life. That way leads to despair. (and I'm still digging myself out of it 2+ years after the 2nd knee replacement.)
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Not every last yoga exercise under the sun. There might well be a few positions that you shouldn't get into at all and maybe a few more that you should only attempt with one of those neoprene knee braces to restrain the patella, but the rest of yoga should be fine.
Better to do the yoga you can do, and retain the meditation and mental stability, than do none at all.
Until your cartilage has degenerated to the point of being non-existent, there will always be things you can do. Swimming is excellent low impact exercise for the leg muscles. Strengthening them will help keep the patella aligned.
Don't, whatever you do, do what I did and resign yourself to being crippled for life. That way leads to despair. (and I'm still digging myself out of it 2+ years after the 2nd knee replacement.)