Hello and welcome to clover.
Beautiful cross bread. She has managed to get early ago degerative joint disease. Also known as arthritis. She is not quite 4 yest but its clearly been an issue for a while.
She has had CT scans in both her hocks. Only 1 is suffering. But she is coping incredibly well. This type of arthitis in the hock is not the most common, but we have seen it a few times. We are glad she is getting with the physio now as it will help keep clover comfortable for longer.
Keep up the good work mum and clover!