Have you ever wanted to hinge a brace yet maybe not do it right away? Tamarack has come up with a pretty neat way to add Flexure Joints on the outside of an AFO. The Tamarack Flexure Joint Caps also allow you to be a little more creative with an AFO designs. They have a few neat AFO designs on their blog and I have a couple pictures of what I have done with them. I think it is a neat idea and a very clean option for fabrication. I really like being able to have a very intimate fit around the malleoli yet have the articulation. Here is a dorsi-assist AFO that I did for a child with neuropathy.
Here is a picture of a unilateral upright dorsiflexion assist AFO. The little girl I made this AFO for had a stroke but has gained a great deal of strength and now only needs a little boost for her dorsiflexors. The AFO had to be pulled in two sections and joined with a chicago screw and then a Flexure Cap was placed right on top of the joint. I have not fit it yet but it looks as though it will work.