Diabetes Care, Vol 7, Issue 1 42-46, Copyright © 1984 by American Diabetes Association

ARTICLES

Reduction of abnormal foot pressures in diabetic neuropathy using a new polymer insole material

AJ Boulton, CI Franks, RP Betts, T Duckworth and JD Ward

The precise pressures and loads under 69 neuropathic feet have been measured during walking using a modified microprocessor-controlled optical system. Abnormally high pressures were demonstrated in 94% of feet with a history of foot ulceration, with pressures as high as 20-30 kg X cm-2 under the forefoot. All subjects were also studied using a new visco-elastic polymer material recently used for insole manufacture. A reduction in pressure was demonstrated that was proportional to peak pressure (linear regression line correlation coefficient of 0.91; P less than 0.001). We conclude that this material causes a significant reduction in the abnormally high pressures recorded under neuropathic feet, and should provide a useful insole for the management of patients at risk of neuropathic foot ulceration.
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