The best tool for breeders in the fight against canine hip dysplasia (CHD), to come along in years, is the SV's HD Zuchtwert, or Breed value assessment number (HD ZW). The HD ZW number is an estimation of the probability that a dog will produce progeny with CHD.
If you are wondering why some of the previous years' top placing dogs can't be found in the current year's top placings, it MAY be because they have been placed in the "T" Category listing at the BOTTOM of their Class!!
Historically, dog shows and other related events were developed with a very specific purpose in mind – to select and recognize those dogs with the best breeding characteristics, in order to guarantee the future health, stability and vitality of individual breeds. The practice of dog breeding is dedicated to this purpose, and dog breeders have a responsibility to do what is best for the breeds with which they choose to work.