Modifying: AFO Part 1

In this two part video I show my technique for positive model rectification, or how I modify the plaster model. It is purely technical and intended for fellow pratitioners and technicians in the industry. All are invited to watch, but will not make much sense to those outside the industry. I have been asked several times over the last couple years to make a video on my techniques. This is by no means intended to transform the way you modify, but simply my two cents and the technique I have come up with over my 30 years of model rectification.
-Kevin Matthews, CO/LO

[@AdvancedOrthopedic]

Steve taught me much more than most. I will always admire and respect him.

[@915fubar]

Hit the nail right on the head Kevin!!! Thank you for the help.

[@eowyncorcrain6722]

Thank you! O&P Tech student here - this is great info!

[@AdvancedOrthopedic]

You need to make sure your plastic is cooked to 390-400 degrees, Fahrenheit.If you don't have a digital thermometer buy one. It should remedy this. You also need to get good vacuum, no leaks. We seal the top of our model and the vacuum pipe with aliplast. The plastic bonds well to the aliplast.

[@lbar2458]

Wow i use aliplast also. And when i make a crow i pull posterior like normal then once cut and trimmed and ready for anterior portion i pull aliplast around the entire then pull vaccuum to make sure all sealed up then i cut out aliplast where i want to lay the anterior portion. I have found this is way better than wrapping it all in plastic with the pull of the anterior portion. Then when cooles all i have to do is take scissors and cut aliplast and anterior comes right off. Sorry didnt mean to ramble just i have found alot of uses for aliplast

[@915fubar]

Small world. I worked for Steve in El Paso. He's very knowledgable.

[@AdvancedOrthopedic]

I place material under the heel to match the contour of a shoe. Almost all shoes have a measurable heel height, 3/8" or 1 cm or more. The orthosis is actually in slight dorsiflexion after the footplate is added. It is important to consider the tibial angle and how it impacts the knee. We should most often set these up in dorsiflexion to mimic actual biomechanic angles. This is a big subject requiring more words than this allows.

[@sumiyashakoor5393]

Fantastic working in this way I will be able to explain how does it work

[@TheSkylarkingpegs]

I really find these videos helpful, have seen many different techniques. Would be nice to see a pediatric AFO rectification too.

[@AdvancedOrthopedic]

Glad to help!

[@dr.pd30]

Sir how I can order

[@AdvancedOrthopedic]

Still in SA. Tell him I'd love to see him if he ever gets down this way.

[@915fubar]

While on the subject. What is your opinion on heating the mold prior to pulling plastic?

[@jharededwards9434]

Thanks for video just wanted to let u know that I wear AFO n I always said how do they modify them n now I know thanks for the vid

[@AdvancedOrthopedic]

working on it

[@c1j2a3]

What material do you use to make the mold?

[@915fubar]

Steve is also wondering if you are still in San Antonio.

[@nadinatarkosah1619]

Please I like your way of everything here.Am from Ghana, you?

[@AdvancedOrthopedic]

I'm sorry, I don't have experience with those plastics. I have been lucky enough to have always had the best materials to work with. I have heard of others using old large diameter PVC pipe and such. I can't help you much there. You can email me at Kevin @ Advanced orthopedic designs . com . No spaces.

[@915fubar]

I had a question. I pull afos on a regular basis but when I pull the plastic off the mold the plastic spreads. Is there anything I'm doing wrong??

[@christrueman9694]

Mold and let the plastic cool over night. If you don't let it cool completely, the plastic creeps or as you say spreads.

[@SalmanKhan-px2ds]

Sir Which powder do you use for filling cast?

[@AdvancedOrthopedic]

We use molding plaster and mix it with zonolite (also known as Vermiculite)

[@AdvancedOrthopedic]

We add zonolite to our plaster of paris

[@haseebchoudhary8794]

Sir i need this

[@AdvancedOrthopedic]

Plastic orthoses are much cheaper to fabricate and no parts necessary, just plaster and plastic...almost. The wearer should have the options, provided they have the money and the orthotist knows how to make them. You use what materials are available. Buckets may work temporarily, but not a viable long term solution.

[@915fubar]

Testing theory as we speak.

[@dr.pd30]

Sir I'm from India how I Can order for 19months baby

[@fatimkhan5225]

Where can I find a place

[@AdvancedOrthopedic]

I don't know what you are asking

[@fatimkhan5225]

@@AdvancedOrthopedic I am talking to Pakistan Karachi

[@mr.charleshunt394]

WHAT KIND OF VICE IS THAT YOU ARE USING TO HOLD THE FOOT TO WORK ON

[@kevinmatthews683]

+Charless Hunt It's a pipe vise, available through O&P suppliers like Cascade, SPS and Pel.

[@mr.charleshunt394]

TY

[@waltertaggart2020]

Ui

[@miloudibenlahcen9465]

Mio je sui endikaper je bezoin de proteze cvp

[@johnbirtch6854]

You make orthotics look too complicated! I could teach you a thing or two! lol! bwahhhhhhhhhhhhhhhh!

[@AdvancedOrthopedic]

A waist of time