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Stiphane Bouilland
02-26-1997, 06:12 PM
Dear netters,

Here are the few answers I received for the
message below. Many thanks to those who answer me.

Stephane

Original message :

Dear subscribers,

I would like to know if low back pain has been
proven to modify gait and what are the main
variations, compared with safe subjects.I would be
very grateful if someone could answer me or
indicate me some published works on this topic.

Stephane

Answers :

-----------------
Dear Stephane,

I am not aware of any published works on
the subject, but I can tell
you from my own experience that low back pain can
have a significant
effect on the gait. It depends on what muscles
are involved but the
most common thing that I have seen in testing is
the patient will try to
limit the rotation at the L4-L5/L5-S1 area.
depending on what muscles
are involved dictates where these forces that the
patient is trying to
counteract have to go somewhere. Either up into
the back or down into
the legs.

Jeff Dixson
Technical Director
BioMotion Technologies Inc.
JBDixson@ix.netcom.com
----------------------
Stephane,

Try reading the following:

Arendt-Neilson, etal "The influence of LBP on
muscle activity and
coordination duirng gait: a clinical and
experimental study" Pain 64 (1995)
231-240

Regards,
Howard J. Dananberg, DPM

-------------

You could write to Dr J Morley at EIHMS,
University of Surrey, Guildford,
Surrey, Uk GU2 5XH. He has just joined the
University (so is not yet on
email) and has measured the effect of lower spine
restriction of mobility -
such as caused by low back pain, on gait patterns.


SC Hughes,
Director of BioMedical Engineering
Department of Mechanical Engineering,
University of Surrey,
Guildford, Surrey GU2 5XH

http://www.surrey.ac.uk/MechEng/BioMed/

email: S.Hughes@surrey.ac.uk
Tel: 01483 259671
Fax: 01483 306039


-------------------------

Dear Stephane,
As a biomechanist suffering from low back pain I
can tell you it definitely
modifies gait. I presume the way it affects gait
depends on the area where
it hurts more. I think all patients suffering from
low back pain tend to
use soime sort of antalgic gait, and this will
depend from subject to
subject. As part of the pain derives also from the
compression of sciatic
nerves, having back pain due to L5S1 will be
different than L3L4.
Hope this helps.

Best regards,

Luca Cristofolini
Laboratorio di Tecnologia dei Materiali
tel. 39-(0)51-6366864
Istituti Ortopedici Rizzoli
fax. 39-(0)51-6366863
Via di Barbiano 1/10
E-mail:luca@tecno.ior.it
40136 Bologna, Italy

----------------------------

And Howard Dananberg send me the folowing article
:

Lower extremity mechanics and their effect on
lumbosacral function
Howard Dananberg
Spine - Vol 9 - No 2 - pp 389-405 - 1995