| HD +/- is equivalent to Good. The dogs are tested at 18 months instead of 24. This is the rating the Germans use HD- or HD frei is the same as OFA Excellent, HD +/- is the same as OFA Good, HD + is the same a OFA fair, HD ++ is the same as OFA Mildly Displystic, HD +++ would be Severe. Most dogs that come from Europe when obtaining their OFA numbers reflect the very same rating. For Example my male Rotthunter Chicco was rated HD +/- at 18 months, then xrayed when he arrived here at 49 months and recieved a rating of Good, RO-56606G49M-T. This is a 4 year old dog that was IPO III that jumps and torques his body constantly. No system is perfect, but I don't believe that OFA is either inferrior or superior. The systems are only as good as the persons who are reading the xrays on that given day.
I do agree with Nancy if we focus entirely on the hips we may lose other qualities.
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