Responses: Microcapsular stockings.

Responses: Microcapsular stockings.

Chet X Burdette

3/5/2001

Original post:
I was wondering if anyone out there has actually used a Micro-capsular
stocking to evaluate socket fit.
    This is described in the Atlas of LP as a cotton stocking with a
polyerethane lining into which encapsulated blue dye has been sprinkled.
When worn in the socket the sock will turn colors indicating high
pressure areas as the capsules are ruptured. The color changes vary from
light yellow to various hues of green to deep blue, depending on the
amount of pressure.

The following article is referenced:
Brand PW, EbnerJD: Pressure sensitive devices for denervated hands and
feet. J Bone Joint Surg [Am] 1969; 151:109-116.

If anyone knows where these stockings can be found I'd love to see one.

Thanks,
Chet Burdette CPO
Mountain State Prosthetics LLC
Charleston, WV

________

There weren't many responses to this inquiry and all but one had no
experience with the product. Most of the responses were from people who
like me thought it was a neat concept and wanted to learn more about it.
So if you haven't responded to this and have experience with the product
I'd still love to hear from you.

Responses:



We used a few of those in the late 70's early 80's when I worked at
Prosthetic Research Study in Seattle. At that time they weren't very
accurate since the shear forces getting into the socket broke a lot of
the
dye capsules. The pressure measurement wasn't very accurate then since
the
dye broke at rather low force and beyond that you had no idea how much
force was on the sock. I haven't heard of them since so I don't know if
they are available or any better than they were then. PRS might be able
to
look up the studies for you (206) 903-8136.

Wayne Daly, CPO


________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today! For your FREE software, visit:
<URL Redacted>.