Pure Stride Ultra Orthotics

Instructions for Heat-Molding Pure Stride Ultra Orthotics

Measure Arch Height

There are different ways to measure the orthotic arch height so the orthotic provides support but is not applying excess force against the arch causing discomfort. Measuring the arch height with the patient standing relaxed and applying mild upward pressure with a level finger is a good way to estimate the dynamic arch height during gait. Using a mm ruler, measure the floor to the top of your finger pressing upward against the navicular tuberosity.

Patients with flexible flat feet will commonly have a medially positioned STJ axis that will exit the foot in the mid arch area. In this case, a higher arch will cause increased compression rather than rotation of the STJ. It is best to be careful not to raise the arch too much as the patient will not be able to tolerate the orthotic as the foot pronates during gait.

Heat using a heat gun.

Heat the bottom of the arch and keep the heat gun at least 8 inches from the orthotic while slowly moving the heat gun back and forth to avoid burning the black EVA. Heat for about 4 minutes until you can easily deform the arch with mild pressure. After it is heated, apply downward pressure on the arch to the prescribed arch height with care being taken to keep the heel and front of the insert contacting the supporting surface. Hold this position for about 2 minutes for adequate cooling while the shell takes on its new contour.

Heat using a toaster convention oven.

Place the inserts in the oven at 225 degrees for 5 minutes. Remove inserts and place downward pressure on the arch. If the arch resists deformation, replace it in the oven for another 60 seconds and recheck. Once the inserts are heated adequately, remove them from the oven. Apply downward pressure to the right arch to the prescribed arch height. Place the left orthotic adjacent to the right orthotic and deform the arch the same height as the right orthotic if both arch heights are the same. Maintain the position of the arches for about two minutes for adequate cooling.

Fitting Heat-Molded Orthotics in Shoes

The orthotics are wide to allow greater surface area to provide greater control. Place the orthotics in the shoes and ensure that there is ample room for them. Have the patient walk to assess how the orthotics feel and that they are comfortable. The orthotics can always be reheated to increase or decrease the arch height if necessary.