Nope not for any reason at all.
Ft Squats will do far more for your quad development then any amount of leg extensions will and the Ft Squats are actually beneficial for knees in general. Where the shitty leg extension will fuck you and everybody that does them in the long run. Been proven and documented time after time. You could also incorporate BBL Hack Squats for further quad development. With my knees the BBL hacks are a no go. So over the year I have found that I can do Ft Squats, Power lift style squats (bar low on traps and very wide stance) and I do SLDL and leg curls for hams. Right there complete leg workout and even better yet highly compound excersizes. I do the leg curls standing up not laying down. That way involves the use of more stabilizing muscles.
I have trouble holding the bar with fingers so I use an old set of straps and hold the straps. Somewhere on here I posted a vid of how to do this. Lemme know if you need to see it.