OK, Tyler:
There is a chance that you may have BJHS, (also called Ehlers-Danohs Type III or Hypermobility Syndrome).
Can be difficult to get a diagnosis, but Professor Grahame and his team at Euston are specialists in this area.
It is VERY important to get a professional diagnosis on this, but a lot of GPs have never heard of it, or regard it as a very rare problem, and therefore believe that it is almost certainly something else causing your problem, usually blamed on growing pains, as in your case.
Read up a bit about it on Wikipedia, and
http://www.hypermobility.org/
Why is it important to consider? Well, if you do have BJHS, then an operation on your knee-caps is going to make things worse, not better. DON'T let anyone operate on your knees without considering this. Why? because the cause of this condition is a body's inability to make collagen. This means that your tendons are more stretchy (hence regular dislocations) and muscles less effective and don't build as well. An operation will involve time off your legs recovering, which will cause muscle wastage and therefore no improvement at all.
So, to summarise - you might, or might not have BJHS. Get it checked out. Push for a test, regardless of what your GP or parents might say. Do not have an operation on your knee to solve the dislocation problem until you get the Yes/No answer.
And the treatment involves careful physio to help build up muscles around your knees, which will reduce chances of dislocation. Not much more than that, really.
My wife has this condition. She has it fairly mildly, but still affects her a lot. Sounds like you are even less affected, but at your age, it could get worse with damage, or improve with physio.
