my 10month old lab has just been diagnosed with o.c.d which i believe is a dissorder which effects his elbows , the vet told us that it basicly means he hasnt formed any cartilage between the elbow joint and the two bones are rubbing together causing the bone to splinter we were told that eventually he will need to have all of his legs operated on . could anyone give me some info on this please and may be  there are some supplements he could take to help him

thanks alot mart