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Re: Bone -- Internal Modelling Relative to Attitude

Hi Jaime,

I'm not sure if I understand correctly what you mean by attitude - if
you mean whether the bone microstructure depends on the loading on the
bone (which is in itself influenced by how the bone is held) then the
answer should be yes, at least in some cases. For example, in tensile
regions the collagen fibres in the osteons are more strongly oriented
in the loading direction; in compressive regions, they have a tendency
to be oriented in circumferential direction of the osteon. Mineral
content also changes depending on the loading.

This is discussed in Martin, Burr, Shakley, "Skeletal tissue
mechanics" and partly also in JD Curreys book "Bones". If you need
more details, tell me.

Sorry if this was not what you were asking,


> I have a question pursuing research, and pardon if what I am asking should be 
> obviously known. I am fairly certain I saw a reference to longbone modelling 
> that indicated infrastructure related to that bone's habitual attitude, but I 
> am not familiar with it. In furtherance of my edification, I am therefore 
> wondering if anyone is aware of research and publications that describe the 
> relationship of the infrastructure of bone (from the medullary cavity to the 
> periosteum, and from the diaphysis to the epiphyses) to its habitual 
> attitude? Does the relative position or attitude actually have any bearing on 
> the infrastructure at all?
> Cheers,
>   Jaime A. Headden
> "Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)
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