We hadn't seen "our" fox for a while but he was back today. When I last saw him couple of months ago he was not looking good. He had an injured back leg. It looked like he may have broken a bone in the lower leg/paw area and he wouldn't put any weight on it.
But today he was walking fine and as bold as ever. I think I could see some scars on his paw but he seems to have made a fully recovery.