|Common disease - Hip dysplasia|
Hip dysplasia is a polygenic hereditary disease (transmitted by many genes) characterized by instability of the coxofemoral articulation (hip joint) that can lead to a hip subluxation (partial separation of the joint) and secondarily to osteoarthrosis (articular structure degeneration).
Genetics and reproduction : the disease is hereditary and caused by the interaction of many genes (polygenic); that is why its eradication is difficult. Many dogs have dysplasia genes but do not show any sign of the disease. Therefore, it is important to be very strict with the criteria selection of breeding dogs and the study of their pedigree; i.e. the hip status of the parents, grandparents and great-grandparents, and if possible of brothers, sisters, uncles and aunts. For now, the only way to reduce the frequency of dysplasia is to selectively reproduce animals that are free of hip dysplasia.
Diagnosis: a dysplastic dog can be diagnosed very young by a veterinarian experienced in canine orthopedics. It is possible to palpate hip instability in a dysplastic dog as early as the age of 3 to 4 months. On the other hand, to be sure that a dog is not dysplastic, one must wait until the dog is 2 years old (age determined by the OFA - Orthopedic Foundation for Animals from the statistics on the age at which the radiographic signs of dysplasia appear). This is because some dogs, with apparently normal hips at the age of 6 or 12 months, show signs of hip dysplasia later in life.
CLINICAL SIGNS :
The best way not to have to treat hip dysplasia is to
select dogs that do not have it. It is important to be
very strict when breeding and think about the long-term
well-being of the race.
Dogs with "fair" hips should not be bred (just breed
Don't breed a dog that has dysplastic brothers and/or sisters.