I had a VMO advancement and lateral release done in October. I do not think the surgery worked. My knee is still popping. Fri. nite my knee popped so bad..it hurts to put any weight on it and it is swollen down my leg. My mom wont let me go to the hospital(Im away at college) she told me to wait til I come home in 2 weeks and see my surgeon since the hospital mite not do nething since i had surgery back home 6 hrs away. has this happened to anyone else? what can i do? any info.avice is appreciated! I am in immense pain!