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ICRAITRRU60 - VALERIO DI STEFANO or
Metal or plastic braces
BRACES (CALIPERS) 541
Modern, high-quality braces are usually made out of metal or molded plastic.
The best metal is a mix or ‘alloy’ of aluminum and steel which is both light and
strong. However, this is very costly and often hard to get. Pure aluminum is very light,
but breaks easily, especially when you try to bend it. Steel is cheaper and easier to
bend and weld, but is much heavier.
The best plastic for braces is probably polypropylene, which is strong, light, and
fairly easy to shape when hot.
plastic
below-knee
brace
Pre-formed metal parts for making these braces
are sold at orthopedic supply stores. Unfortunately,
they are usually much too expensive for a community
program. However, sometimes you can get large
orthopedic centers to donate old braces, from which
locking knee joints and other pieces can be used to
build high-quality metal or plastic braces. Also, many
broken or outgrown braces are lying in the corners of
thousands of homes. A campaign to get families to
donate these can greatly reduce the costs of making
high-quality braces.
metal below-knee
brace with wood
clog
Low-cost metal or plastic braces can be made in a village shop. They can be
made simply, with or without joints. Since children grow quickly, they often need a
larger brace every 3 to 6 months. Therefore, keeping cost low and work simple is
essential. (See Chapter 56, p. 527.)
Metal and plastic braces each have advantages and disadvantages. We discuss
these on p. 542 and 550.
In Mexico, we have found that for most children who need below-knee braces,
plastic works best. And the children (and parents) like it more.
However, a child with a
lot of muscle tightness
(due to spasticity or
contractures) which
pulls his foot a lot to
one side, like this,
may need a metal brace
with an ankle strap.
After the brace is on,
the strap is tightened
to pull the foot into a
better position.
Above-knee braces
can be made using
a combination of
plastic and metal.
Whenever possible, equip your village shop to make both plastic and metal
braces. That way, you can make what seems most appropriate for each child.
disabled village children
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