I was just in the orthopedist's asking the same question! Same measurements even, LOL. I have juvenile chronic polyarthritis and leg length discrepancies are common. I had a surgery as a child called "epiphyseodesis" that was supposed to fix the problem but it didn't work. My knee is shot now and I've been have back and hip problems from the LLD.
Yes, they can accommodate for leg length differences - up to 2 inches. Of course, everyone is different, you'll have to go over this with your ortho. Good luck.