I'm so sorry to hear about his injury. It was about a year ago that we dealt with the same thing except it was ZsaZsa's right rear leg that had the fractured growth plate. She had the surgery but it was just a little over a thousand dollars, vet bills are so different in other areas. They told me to crate her for 6 to 8 weeks but I just couldn't as she's not used to being locked up. Just kept her a quiet as possible and wouldn't allow her to rough house with the other pups. Best of luck with the recovery and if you have any questions just pm me.
