A Method for Diabetic Wound Specific Insole Design, Manufacturing and Biomechanical Validation for Better Recovery

Ayfer Peker Department of Podology, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey

Search for other papers by Ayfer Peker in
Current site
Google Scholar
PubMed
Close
,
Levent Aydin Department of Podology, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey

Search for other papers by Levent Aydin in
Current site
Google Scholar
PubMed
Close
,
Berrin Cetinarslan Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey

Search for other papers by Berrin Cetinarslan in
Current site
Google Scholar
PubMed
Close
,
Zeynep Canturk Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey

Search for other papers by Zeynep Canturk in
Current site
Google Scholar
PubMed
Close
, and
Alev Selek Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey

Search for other papers by Alev Selek in
Current site
Google Scholar
PubMed
Close

Abstract

Muscle disorders may cause a change in plantar pressures by the misalignment on the foot during gait phases. Therefore, corns or calluses develop at the plantar regions, and diabetic foot ulcers follow for severe cases although it can be prevented and even treated by podiatric approaches with patient specific therapeutic insole and footwear. Although the importance of a threshold value of 200 kPa in peek plantar pressure reduction has been highlighted as a gold standard to prevent re-ulceration in diabetic foot, it may not be possible to ensure this pressure reduction for each patient. In this study, 3 types of ethylene-vinyl acetate have been utilized to optimize the off-loading performance for pre-determined early-stage diabetic foot ulcer scenarios by means of baropodometric plantar pressure analyses and finite element method for each gait phase. The total cost of the manufacturing for this study was reduced down to $10.26 and was performed in 24.6 minutes. In addition, the offloaded pressure was increased by 2.3 times while the volume of the off-loading geometry was increased 8.12 times based on the utilized foam polymer. Consequently, improved off-loading was obtained and a standard was proposed for the first time to calculate the off-loading performance before manufacturing of the therapeutic insole model to ensure a better recovery period.

Corresponding author: Levent Aydin levent.aydin@kocaeli.edu.tr, +90 506 125 97 50
Save