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01-07-2010, 07:41 AM | #1 |
YT Addict Join Date: Feb 2009 Location: Saskatchewan
Posts: 384
| Need luxating patella information, please I had my boy at the vet yesterday for a routine examination and his knee was out. I am a breeder and have had his knees checked yearly, by OFA procedure, and they have always been normal before. I have never seen him limp or shake out his leg. He will soon be 6 years old. What are your thoughts on this? Genetic vs. injury? I have his daughter and her knees are normal as well. Anyways, I am curious as to your thoughts on how common LP is in yorkies. Is the groove just shallow due to the size of their bones. I have spoken in the past to a VERY reputable Canadian breeder (won't mention who),who told me that she does not reject a dog from her breeding program with grade 1 or 2, just breeds to a dog with very good knees. Thanks for reading and for your help. Audrey |
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01-07-2010, 09:32 AM | #2 |
Donating YT 5000 Club Member Join Date: Aug 2007 Location: Southeast Texas
Posts: 7,959
| Here is an interesting article I posted a while back, just one persons opinion on LP. HIPS, KNEES, & ENVIRONMENT, by Barbara (BJ) Andrews My belief is that improper structure and environment play a big part in the development of lp. Those dogs with improper structure, like straight stifles, will be more likely to develop lp at a early age, especially if they are jumpers. Dogs that are not as active that have proper structure may or may not develop lp until they are older, just as us humans develop bad hips and knees when we get older, especially if we are over weight. |
01-07-2010, 10:23 AM | #3 |
YT Addict Join Date: Feb 2009 Location: Saskatchewan
Posts: 384
| Thanks for that article. This is a reasonably well structured dog, (not perfect of course) not overweight (not an ounce of fat, typical male). Like most yorkies, he is a pogo stick, however. I am pulling him from my breeding program, I am getting another male in the spring out of the US and he is old enough that I was thinking of retiring him anyways. I do have and was planning on breeding his daughter, who has normal knees. Should I assume that this is a genetic problem and pull his daughter from my breeding program or is it possible that this problem is environmental and I can breed his daughter with caution to a boy that has great knees. Audrey |
01-07-2010, 10:38 AM | #4 |
Donating YT 5000 Club Member Join Date: Aug 2007 Location: Southeast Texas
Posts: 7,959
| My personal feelings are that if you have had him checked yearly and the problem just showed up then I would tend to believe that his lp is due to age and environment. It would be interesting to hear input from others on the subject. As for breeding his daughter, just do like you said and breed her to a male with great knees and one that is proven to produce sound pups. |
01-08-2010, 01:52 PM | #5 |
Donating YT 1000 Club Member Join Date: Oct 2006 Location: Texas
Posts: 4,280
| It would be in my opinion that it was from an injury seeing the age of the yorkie and if you have had him OFA'ed I wouldn't think it was genetic but you left out what grade he has at 6. Most that are genetic from what I understand would develop a grade 3 to a 4 before the age of a year and a half. That is why my garnuantee only covers up to a year and it being a grade 4. |
01-08-2010, 01:57 PM | #6 | |
Donating YT 1000 Club Member Join Date: Oct 2006 Location: Texas
Posts: 4,280
| Quote:
Donna | |
01-08-2010, 02:30 PM | #7 |
YT 2000 Club Donating Member | If he cleared OFA yearly and he is 6 years old - given the structure of the knee joint - I would assume that this is not genetic but somehow environmental. Is it possible he hurt his knee when you weren't around? iS there lateral tracking abnormality right now? Is it on only one knee and not both? Were both checked?
__________________ Razzle and Dara. Our clan. RIP Karma Dec 24th 2004-July 14 2013 RIP Zoey Jun9 th 2008-May 12 2012. RIP Magic,Mar 26 2006July 1st 2018 |
01-08-2010, 03:58 PM | #8 |
YT Addict Join Date: Feb 2009 Location: Saskatchewan
Posts: 384
| Thanks for the responses. After doing some further reading on the subject, I am beginning to think that it is either due to constant wear on the joint (from frequent jumping up and down) along with a certain amount of loosening of tendons and muscles that goes with aging. I don't think he has injured himself per se, I have never seen him limping. I have been watching him closely to see if I can see any gait changes, if there are any they are very subtle. I have started him on glucosamine-chondroitin supplements, hopefully can ward off arthritis to some degree as he ages. As far as his daughter is concerned, I will just continue to watch her and I have decided that when I do breed her, I will be careful to make sure the male has extremely tight stifles. She and I do agility together and neither I nor her instructor have ever noticed any abnormal gait. I found an interesting article yesterday, I will give anyone who might be interested the link Summary of the Condition Luxating Patellas |
01-08-2010, 04:01 PM | #9 |
YT Addict Join Date: Feb 2009 Location: Saskatchewan
Posts: 384
| I forgot to add, one knee only is affected on my boy, a grade 2. |
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