Knee Problems for my Little Guy

My son Micah (age 7) has patella knee where your knee cap shifts out of place from time to time for no reason. The other night at about 10:30 during his sister's sleepover party it happened again. It was the worst I've ever seen it. He was screaming he was in so much pain. I kept trying to shift it back into place, not that I really know what I'm doing, but I've watch the doctors before but it wasn't working so well. Or at least I thought that. I took hubby along because the roads were icy and we headed to the ER. I felt so awful leaving the girls home after inviting two of Natania's friends over to sleep. I felt so guilty but my oldest daughter 16 was home and Natania's friends are very mature and well behaved. They took 4 xrays and the knee was lined up right but they were concerned about ligament damage. So we went home at about 2:30am with crutches and a leg brace that is the size used for a small adult so that wasn't all that helpful but it did immobilize his knee for a few days. Our follow up visit was today with our family doctor. He told him to try to limp around until it felt better and to try to put some weight on it just a little. As long as it didn't hurt. He thought he would be better in a few days but he is also setting up an appt. for us to see an orthopeds specialist. He is thinking Micah might need knee surgery but he wants the specialist to make the final decision because Micah is so young and the surgery is usually done in your teen years. So now we now wait and see.