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Orthopaedic Biomechanics Laboratories
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Trauma
Biomechanics Laboratory
This laboratory is primarily used to examine the effects of loads on
animal tissues, cartilage, bones, and muscles. These are the pieces of
equipment that are most commonly used:
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1. Mini-Indenter
- Used to determine
the stiffness and other material properties of cartilage.
- Small indenter is
placed in contact with cartilage surface, then compressed with
a 0.1 mm square wave of 150 seconds duration.
- Calculates a force-time
curve, which can be used to measure stiffness and shear modulus
of the cartilage.
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2. Miniature Drop-Testing Machine
- Gravity-controlled
impact device with a maximum load of 50 lbs and a maximum drop
of 12 inches.
- Used primarily for
testing cartilage impact response
- Has the ability to
test objects that are uneven in shape for their stiffness
- Helps researchers
understand the structural properties of cartilage.
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| 3. Fuji Film
- Has unique ability
to show how pressure is distributed on a joint under loading
- Film can provide a
force profile over the joint surface.
- Allows researchers
to examine the relationship bethween loads and joint structure
- To view a full-scale
image, click here.
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Plot of the calibrated
pressure film data and the corresponding polynomial fits
(poly) used for data analysis. Contact, half-width, mean,
and peak pressures were calculated individually for the
three ranges of film (low, medium, and high) and for the
composite fit. For a larger version of the image, click
here.
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Orthopaedic
Biomechanics Laboratories
Attn: Dr. Roger Haut
A-407 East Fee Hall
East Lansing, MI 48824
phone:(517) 355-0320
email: haut@msu.edu
© 8/10/05
by MSU OBL.
All Rights Reserved.
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