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THE SCORING SYSTEM

HIP SCORE

Left

Right

Norberg Angle    
Subluxation    
Cranial acetabular edge    
Dorsal acetabular edge    
Cranial eff. acet. rim        
Acetabular fossa    
Caudal acetabular edge    
Fem neck exostosis    
Fem head recon touring        
     

Total

   

                        Score  ________  

 

The 9 items listed on the scoring sheet are all details of the anatomy of the hip joint that can be seen on an x-ray film.  Of these features 8 are scored out of 6 with 0 being normal. One of these, the Caudal Acetabular Edge, is scored out of 5.  Therefore the worst possible score for each hip is 53 with the worst combined score being 106.

How are these scores used?  Obviously the ideal situation would be to breed only with dogs that have a 0 score. However this is unacceptable as doing so could eliminate 80% of some breeds so a compromise had to be reached which allows the retention of sufficient breeding stock but will decrease the severity and incidence of the disease.  It is up to the breed societies and clubs to set the standards that are acceptable for breeding and a number have done so. If there are no breed guidelines then the best reference is to look at the mean score for the breed.  If the dog has a score for any one hip that is greater than   the breed mean or there is a score of greater than 3 for any one the listed features then it should not be used for breeding. If a mean score for the breed is not available then if any one hip scores greater than 8 or any one feature greater than3 the advice is not to use for breeding. 

 

THE GRADING SYSTEM

There is not a direct relationship between scoring and grading which causes considerable confusion.  The grading is done on the worst hip only. Because of differences in the assessment methods it is possible, though uncommon, for dog with a relatively low score to have a relatively high grade.    Generally speaking it is considered acceptable to breed from dogs with grades 0, 1, 2, and 3 and not from grades 4, 5, and 6.  It is probable that the grading system will stop being used sometime in the near future.

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