Hello

system · July 15, 2003, 11:00am

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Hello<o></o>
<![if !supportEmptyParas]><![endif]><o></o>
I am a PhD student
at Anglia Polytechnic University in Chelmsford, Essex, England.<o></o>
<![if !supportEmptyParas]><![endif]><o></o>
I have just joined
this list and was wondering if there is anybody working on a model of the
lumbar spine?<o></o>
<![if !supportEmptyParas]><![endif]><o></o>
I am trying to
create a model of L5 in another program, which is progressing very slowly, so I
thought I would give ‘Anybody’ a try.<o></o>
<![if !supportEmptyParas]><![endif]><o></o>
Kind Regards<o></o>
<![if !supportEmptyParas]><![endif]><o></o>
Juliette Steer<o></o>
<![if !supportEmptyParas]><![endif]><o></o>
j.steer@apu.ac.uk<o></o>
<![if !supportEmptyParas]><![endif]><o></o>
Bioengineering
Department<o></o>
Anglia Polytechnic
University<o></o>
Victoria Road South<o></o>
Chelmsford<o></o>
Essex<o></o>
CM1 1LL<o></o>
UK<o></o>
<![if !supportEmptyParas]><![endif]><o></o>
<![if !supportEmptyParas]><![endif]><o></o>
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system · July 15, 2003, 11:13am

Hello Juliette,

Welcome to the AnyScript discussion group. Mark de Zee of the
AnyBody Research Group is working on a very serious model of the
lumbar spine together with researchers from the Universities of
Copenhagen and Aarhus. Mark is also on this list, so he will
probably get around to answering you. He is temporarily absent,
though, due to very happy circumstances (He has very recently become
a father).

Perhaps you could explain in more detail which type of model you are
trying to build and what its purpose is? I am a bit puzzled when you
write that you are only considering L5. You would normally need a
minimum of two segments to get a result out of a multibody model.

Best regards,
John

— In anyscript@yahoogroups.com, “Juliette Steer” <j.steer@a…>
wrote:
> Hello
>
> I am a PhD student at Anglia Polytechnic University in Chelmsford,
Essex,
> England.
>
> I have just joined this list and was wondering if there is anybody
working
> on a model of the lumbar spine?
>
> I am trying to create a model of L5 in another program, which is
progressing
> very slowly, so I thought I would give `Anybody’ a try.
>
> Kind Regards
>
> Juliette Steer
>
> j.steer@a… <mailto:j.steer@a…>
>
> Bioengineering Department
> Anglia Polytechnic University
> Victoria Road South
> Chelmsford
> Essex
> CM1 1LL
> UK

system · July 15, 2003, 12:23pm

Hello John

Thank you for replying so quickly

The purpose for building my model is to look at a defect called
spondylolysis, which mainly occurs in L5. The process that I currently use
is very slow - it includes importing CT data into one computer program
(MIMICS), processing it, and then exporting/importing in a Finite Element
package called I-Deas. I may eventually want to look at different fixation
techniques - does the software allow you to model non-biological items such
as screws etc?

It has been suggested to me previously that I should model L4 and S1 as
well, but using my current method this would be very difficult in the time
span that I have. I am in the second year of my PhD and only have 14-16
months left.

-----Original Message-----
From:
sentto-9904544-15-1058260397-j.steer=apu.ac.uk@returns.groups.yahoo.com
[mailto:sentto-9904544-15-1058260397-j.steer=apu.ac.uk@returns.groups.yahoo.
com]On Behalf Of AnyBody Support
Sent: 15 July 2003 10:13
To: anyscript@yahoogroups.com
Subject: [anyscript] Re: Hello

Hello Juliette,

Welcome to the AnyScript discussion group. Mark de Zee of the
AnyBody Research Group is working on a very serious model of the
lumbar spine together with researchers from the Universities of
Copenhagen and Aarhus. Mark is also on this list, so he will
probably get around to answering you. He is temporarily absent,
though, due to very happy circumstances (He has very recently become
a father).

Perhaps you could explain in more detail which type of model you are
trying to build and what its purpose is? I am a bit puzzled when you
write that you are only considering L5. You would normally need a
minimum of two segments to get a result out of a multibody model.

Best regards,
John

— In anyscript@yahoogroups.com, “Juliette Steer” <j.steer@a…>
wrote:
> Hello
>
> I am a PhD student at Anglia Polytechnic University in Chelmsford,
Essex,
> England.
>
> I have just joined this list and was wondering if there is anybody
working
> on a model of the lumbar spine?
>
> I am trying to create a model of L5 in another program, which is
progressing
> very slowly, so I thought I would give `Anybody’ a try.
>
> Kind Regards
>
> Juliette Steer
>
> j.steer@a… <mailto:j.steer@a…>
>
> Bioengineering Department
> Anglia Polytechnic University
> Victoria Road South
> Chelmsford
> Essex
> CM1 1LL
> UK

To unsubscribe from this group, send an email to:
anyscript-unsubscribe@yahoogroups.com

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

system · July 15, 2003, 12:59pm

Hi Juliette,

AnyBody does not do the kind of modeling that Finite Element
Software such as IDEAS would do. It will not give you stresses and
deformations in the single vertebra nor in screws and other non-
biological items.

What it does is simulate movement and investigate how the muscles
pull on the bones, and how large the joint reactions are. But it
presumes that each segment such as a vertebra in the model is rigid,
and hence has no deformation.

In your case AnyBody could be used to find the correct forces on a
bony element. You could subsequently apply these forces in a finite
element analysis the result of which is totally dependent on the
application of correct forces.

Best regards,
John

— In anyscript@yahoogroups.com, “Juliette Steer” <j.steer@a…>
wrote:
> Hello John
>
> Thank you for replying so quickly
>
> The purpose for building my model is to look at a defect called
> spondylolysis, which mainly occurs in L5. The process that I
currently use
> is very slow - it includes importing CT data into one computer
program
> (MIMICS), processing it, and then exporting/importing in a Finite
Element
> package called I-Deas. I may eventually want to look at different
fixation
> techniques - does the software allow you to model non-biological
items such
> as screws etc?
>
> It has been suggested to me previously that I should model L4 and
S1 as
> well, but using my current method this would be very difficult in
the time
> span that I have. I am in the second year of my PhD and only have
14-16
> months left.
>
> -----Original Message-----
> From:
> sentto-9904544-15-1058260397-j.steer=apu.ac.uk@r…
> [mailto:sentto-9904544-15-1058260397-j.steer=apu.ac.uk@r…
> com]On Behalf Of AnyBody Support
> Sent: 15 July 2003 10:13
> To: anyscript@yahoogroups.com
> Subject: [anyscript] Re: Hello
>
> Hello Juliette,
>
> Welcome to the AnyScript discussion group. Mark de Zee of the
> AnyBody Research Group is working on a very serious model of the
> lumbar spine together with researchers from the Universities of
> Copenhagen and Aarhus. Mark is also on this list, so he will
> probably get around to answering you. He is temporarily absent,
> though, due to very happy circumstances (He has very recently
become
> a father).
>
> Perhaps you could explain in more detail which type of model you
are
> trying to build and what its purpose is? I am a bit puzzled when
you
> write that you are only considering L5. You would normally need a
> minimum of two segments to get a result out of a multibody model.
>
> Best regards,
> John
>
> — In anyscript@yahoogroups.com, “Juliette Steer” <j.steer@a…>
> wrote:
> > Hello
> >
> > I am a PhD student at Anglia Polytechnic University in
Chelmsford,
> Essex,
> > England.
> >
> > I have just joined this list and was wondering if there is
anybody
> working
> > on a model of the lumbar spine?
> >
> > I am trying to create a model of L5 in another program, which is
> progressing
> > very slowly, so I thought I would give `Anybody’ a try.
> >
> > Kind Regards
> >
> > Juliette Steer
> >
> > j.steer@a… <mailto:j.steer@a…>
> >
> > Bioengineering Department
> > Anglia Polytechnic University
> > Victoria Road South
> > Chelmsford
> > Essex
> > CM1 1LL
> > UK
>
>
>
> To unsubscribe from this group, send an email to:
> anyscript-unsubscribe@yahoogroups.com
>
>
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/