Question for the list serv regarding Spiral AFO
The literature Hans?Richard Lehneis has written regarding the Spiral
AFO, in?his fabrication technique a plastic referred to as Nyloplex
was used to fabricate the AFO. It seems not to be used secondary to
durability of the material. We have used?wet laminations, pre-preg
carbon fiber to?fabricate these orthoses, but when we get the lay-up
to the point where they will not fracture, the transfer of potential?
to kinetic energy?and transverse motion in mostly lost.?
Does anyone know where to obtain Nyloplex? Has anyone used any other
materials to fabricate Spiral AFO?preserving?the principles behind them?
A second?unrelated question.
I was asked by an orthopedic surgeon, whom was performing a total
knee replacement on a transtibial amputee, if there was any
scientific data on the increase or decrease of the life span of a
total knee when used with a prosthesis or the impact a knee
replacement has on an amputee?
Did you happen to notice the date on Mr Lehneis writings? Nyloplex
is a pain to work with and I have not seen it since I was in school
in the mid 80's. Todays materials are significantly better. As a
study of material improvement , you may want to look at nyloplex
compared to carbon. Try older providers like the Eschens in NY (NPI)
or SPS. Good luck. Teri Powers_Watts CPO
I have a nyloplex brace I made as a student in '83 if you cannot find
With regard to your first question, I used a few of the nyloplex
spiral AFOs and was a friend of Richard Lehneis. He was a true
pioneer and warrior for the O&P profession. The spiral AFO seemed to
work well, but premature failure problems eventually caused its
demise. Nyloplex looked like acrylic or PETG with an amber color and,
of course, it was reinforced with nylon, I think. To find this
material, should you still be interested, I would approach the
automotive taillight lens or the aircraft industry. But, I would
surprised if it is still available. Hope this helps some.
Wil Haines, CPO
Derrick, Nyloplex is no longer available as during the manufacturing
process of the plastic, not the brace, it released carcinogens and
other toxins into the air. The plastic itself was safe during the
manufacturing process and patient use. We have encountered the same
problem you are experiencing in search of a substitute material. My
brother Fred may be better able to assist you with this dilemma. I
will forward this email to him.
H. Richard (Rick) Lehneis, Jr., CPO
Lehneis Orthotics and Prosthetics Assoc., Ltd.
13 Bedell's Landing Road
Roslyn, NY 11576
You could try Ortholen. Nyloplex is like Roduer, Not sure how to
spell it. I have worked with it in the past and it breaks easily. You
might also try a flexable resin with C/F and see how it turns out,
Mike Dodd CO
fillaure tenn. ron cartaya miami fl
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