Yes just like any large breed they can suffer from hip dysplaysia. (mastiffmaster.com)
I'm worried about dysplaysia in my dog and I think hydrotherapy sounds like a great solution. (caninejournal.com)
Related terms: OFA (Orthopedic Foundation for Animals), OFA radiograph, osteoarthritis, osteochondrodysplasia, elbow dysplasia (frequently misspelled as dysplaysia, displasia and displaysia) (aplusflintriverranch.com)