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GalomyOak · 31-10-2011, 22:12

In the US, for the comparable "official" exam (OFFA), it is 24 months. The science is based on this information:
http://www.offa.org/hd_prelims.html

Our PennHip exam is reliable from 4 months of age, but it is a totally different method.

I personally had one CSV male who tested normal for HD at 17 months, but was later diagnosed at 27 months with C hips.

31-10-2011, 22:12	#2
GalomyOak Howling Member Join Date: Jun 2007 Location: Colorado Posts: 436	In the US, for the comparable "official" exam (OFFA), it is 24 months. The science is based on this information: http://www.offa.org/hd_prelims.html Our PennHip exam is reliable from 4 months of age, but it is a totally different method. I personally had one CSV male who tested normal for HD at 17 months, but was later diagnosed at 27 months with C hips. __________________ "What lies behind us and what lies ahead of us are tiny matters compared to what lies within us."~Henry David Thoreau http://www.galomyoak.com