I had my right knee replaced about 10 years ago. Total recovery took about 3 months give or take a week or two. Therapy was around 6 weeks ( Pay particular attention to range of motion exercise ) I can't kneel on the replacement knee at all . I don't recall a difference in the way I walked but I don't have the Back problems you do.
With my hobby being what it is not being able to kneel or squat is not really an option. Have spoken with several docs and my PT guy, all have said the same thing...no kneeling or squatting. Bone doc did say it is only a suggestion but...
