You can also ask for your surgical report. It’s amazing what we find out when we read that. In my case, I found out my surgeon did a lateral release during my PKR surgery, because my patella didn't track well during the surgery. That surprised me because I’d never had a tracking problem before. I don’t remember him ever mentioning the lateral release in any of my follow up appointments, and I didn’t ask for the report until my one year check up. So, that was a surprise and has explained the major discomfort I still have, 7 years later, in that lower, lateral area. In my case I believe something went wrong with the lateral release.