I saw a PT and then a trainer associated with the surgeon's practice. It facilitated communication. The trainer in the PT office was also covered under insurance (somehow - not sure if that was fudged).
HOWEVER I do have a caveat. Not sure how broadly it applies. After my true PT was finished, I wish I'd spent the money on seeing my long time personal trainer rather than continuing with the PT office trainer. "My" trainer thinks outside the box. After many PT and supposedly specialized training sessions at the PT office without making progress, I finally broke down and spent the money on my trainer. He immediately identified stretches and exercises that helped me with skiing and in general - and he's still doing so. I wasn't able to do squats without pain until he had me do a particular form of one-legged squat - instead of TRX assists or using a box to sit on, he had me put (say) the left leg on top of an exercise ball, with a pole loosely held for balance. Squat, press against the ball, stand up, rinse, repeat. It allows the body to move more naturally than the box, and allows for partial-weight squats. After a few weeks of that, I was able to do deadlifts without knee pain (and without a heel lift), and just yesterday, I did front squats with weight - and no pain in my knee, during or after. During ski season, he also figured out a great stretch for my hip flexor. I don't think my PTs or trainers ever figured out that my issue was there. He also helped me with better ways to foam roll and use a lacrosse ball.
So I guess what I'm saying is, a great PT is great, but sometimes, answers can come from other places, too.