I'm sure frankie will do fine. Koko had to have acl surgery on both knees when she was 9 months old. She spent 6 weeks in her krate for the first knee and then we had to take her back to Auburn University to have the other knee repaired. We decided after 12 weeks in her krate enough was enough. She hasn't been in her krate since. Two years later she runs like a deer with no knee pain. Frankie will be back running in no time.