I had the same thing happen to me I am post op 2 years and I am still having problems my quad and glute are not working I walk with one crutch as my leg gives out all the time, my knee gives out on me and I have massive deep pain to the left of my knee and above my knee that keeps me up all night. They have put me on lyrica and it doesn't help. Every doctor that I have seen has their own theory and so now it is 2 years later and I am still in pain. I have a split tear in my labrum and I am unable to do a straight leg raise. Walking any distance hurts.