ACL and spaying/ neutering
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Thread: ACL and spaying/ neutering

  1. #1
    Senior Member Greater Swiss's Avatar
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    ACL and spaying/ neutering

    I just saw this blog article on the possible correlation between spay/ neuter and ACL injuryies and problems. Interesting! Just thought I would share, it is good food for thought......
    http://www.angryvet.com/aching-knees...ions-of-study/

    Some people say that doing the same thing again and again and expecting a different result is the definition of insanity, I call it training my dog

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    Senior Member momtolabs's Avatar
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    Re: ACL and spaying/ neutering

    I saw that on another forum,as well. When I first read it I thought it was meaning people should NOT spay and nueter, but keep there pets intact. but once I re-read it it was meaning before a year of age.


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    Senior Member bgmacaw's Avatar
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    Re: ACL and spaying/ neutering

    One flaw I see in the research is that the impact of obesity isn't factored out. While it is more likely that a fixed dog will become obese, the weight ratios of the test subjects may be skewing the results, leading to an incorrect conclusion. I see it as more of a call to manage weight of fixed dogs.

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    Senior Member momtolabs's Avatar
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    Re: ACL and spaying/ neutering

    Quote Originally Posted by bgmacaw View Post
    One flaw I see in the research is that the impact of obesity isn't factored out. While it is more likely that a fixed dog will become obese, the weight ratios of the test subjects may be skewing the results, leading to an incorrect conclusion. I see it as more of a call to manage weight of fixed dogs.

    A dog won't become obese from being fixed. It is how much they are fed and exercised.


    Bentley- 4 yellow lab
    Mia-1 ACD/lab mix
    Tank-9 year old black lab

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    Senior Member sassafras's Avatar
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    Re: ACL and spaying/ neutering

    Interesting, but that's not a study warranting the conclusion they came to. That's sifting through medical records and finding enough of a correlation to warrant an actual, well-designed study. Correlation does not equal causation.

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    Re: ACL and spaying/ neutering

    There could be a lot of reasons for it. . .maybe mutts and purebreds with improper conformation are more likely to be speutered earlier than purebreds with excellent conformation, and their poor conformation leads to the knee problems rather than the speutering, etc.

    I mean, my cousin has blown ACLs in both knees and I assure you has plenty of testosterone, LOL. But he is heavy. So, yeah, i'd like to see a study done that takes all those things into account.

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    Senior Member Amaryllis's Avatar
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    Re: ACL and spaying/ neutering

    Quote Originally Posted by Willowy View Post
    There could be a lot of reasons for it. . .maybe mutts and purebreds with improper conformation are more likely to be speutered earlier than purebreds with excellent conformation, and their poor conformation leads to the knee problems rather than the speutering, etc.

    I mean, my cousin has blown ACLs in both knees and I assure you has plenty of testosterone, LOL. But he is heavy. So, yeah, i'd like to see a study done that takes all those things into account.
    Correlation does not indeed equal causation. You really have to dig at studies to see what the methodology was, etc.

    Slightly more than 50% of all dogs in the US are overweight. Every extra ounce means more pressure on the knees, and that pressure isn't ounce per ounce, it's multiplied by the force with which the paw hits the ground. So I'm not terribly surprised that lots of dogs have ACL injuries. How that relates to neutering, well, I'd have to know who neuters, at what age and why and how that relates to feeding choices. Most dog owners aren't intentional. They buy food they saw on TV that looks good. They walk their dogs somewhat regularly, train sit a few times and don't really think too much about the choices they make for their dogs. That type of owner, not at all negligent, but simply not overly involved, probably does speuter young because it's easy and it's heavily encouraged by the HSUS and ASPCA.

    I know I'm rambling, but it's like saying poor people tend to be overweight in America because they don't eat well. That's true on the face of it, but there's a lot more to it than that.
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    Senior Member sassafras's Avatar
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    Re: ACL and spaying/ neutering

    I think the world would be a better place if everyone had to take basic level epidemiology and biostatistics courses. Or at least if all veterinarians and medical doctors had to. Also journalists. And politicians.

    Ok, everyone.

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    Senior Member zhaor's Avatar
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    Re: ACL and spaying/ neutering

    Honestly it wouldn't surprise me that spay/neutering has more health implications. Hormonal balance and all that.

  11. #10
    Senior Member Greater Swiss's Avatar
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    Re: ACL and spaying/ neutering

    Interesting replies!
    Either way, I saw this and figured it's good food for thought. He does men tion that he will eventually post the full article he wrote, which I'll be interested in seeing.

    Some people say that doing the same thing again and again and expecting a different result is the definition of insanity, I call it training my dog

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    Senior Member spotted nikes's Avatar
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    Re: ACL and spaying/ neutering

    Quote Originally Posted by Willowy View Post
    There could be a lot of reasons for it. . .maybe mutts and purebreds with improper conformation are more likely to be speutered earlier than purebreds with excellent conformation, and their poor conformation leads to the knee problems rather than the speutering, etc.

    I mean, my cousin has blown ACLs in both knees and I assure you has plenty of testosterone, LOL. But he is heavy. So, yeah, i'd like to see a study done that takes all those things into account.
    So how does your cousin feel about his impending neuter???
    Spay or neuter your pet! Founding President Of Thread Killers Anonymous.

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