i agree about yes, with correct fit.
also, gearing is another consideration.
Higher gears and mashing, especially with SSFG and start up/accelerating, means more force on the knee, which isn't very good for it.
Lower gears are much better for the knee, promote elasticity.
spinning = good
mashing = not so good
or so i gather.
gradual back pressure to gradually slow down on a low geared FG isn't so bad and probably good because it is working opposite leg muscles, but harder back pressure on a high gear and the sudden and explosive backwards force needed to skid stop are probably not so good.
i have had a series of knee injuries from playing soccer a huge chunk of my life, have had meniscus surgery, and cycling is great physical therapy as long as you focus more on spinning and ride lower gears and keep the skid stopping to a minimum.