The Orthopedic Foundation for Animals was originally founded in 1966 with the purpose of decreasing the incidence of hip dysplasia in dogs. The organization has since expanded and its mission now is “to improve the health and well being of companion animals through a reduction in the incidence of genetic disease”. This is reflected by the broad range of databases and genetic testing including but not limited to: hip and elbow dysplasia, congenital heart disease, autoimmune thyroiditis, von Willebrand’s Disease, and Progressive Retinal Atrophy.
Hip Dysplasia is a terrible genetic disease because of the various degrees of arthritis (also called degenerative joint disease, arthrosis, osteoarthrosis) it can eventually produce, leading to pain and debilitation.
No one can predict when or even if a dysplastic dog will start showing clinical signs of lameness due to pain. There are multiple environmental factors such as caloric intake, level of exercise, and weather that can affect the severity of clinical signs and phenotypic expression (radiographic changes). There is no rhyme or reason to the severity of radiographic changes correlated with the clinical findings. There are a number of dysplastic dogs with severe arthritis that run, jump, and play as if nothing is wrong and some dogs with barely any arthritic radiographic changes that are severely lame.
Compliments of Offa.org