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The Dynamic Stabilizing Innersole System (DSIS): the management of hyperpronation in children
R M Jay1, H D Schoenhaus, C Seymour
1Pennsylvania College of Podiatric Medicine, Philadelphia, USA.
Insights
The Dynamic Stabilizing Innersole System (DSIS) effectively corrects severe pediatric flatfoot deformities, returning the foot to a neutral stance. This innovative device offers a significant alternative to traditional treatments for pediatric flatfoot.
Area of Science:
- Orthopedics
- Pediatric Podiatry
- Biomechanics
Background:
- Pediatric flatfoot deformities are common and can impact gait and foot health.
- Traditional corrective devices may have limitations in efficacy and patient compliance.
- The Dynamic Stabilizing Innersole System (DSIS) has emerged as a potential alternative for managing pediatric flatfoot.
Purpose of the Study:
- To evaluate the effectiveness of the DSIS in correcting the resting calcaneal stance position (RCSP) in children.
- To compare the RCSP with and without the DSIS to assess its corrective impact.
- To determine if the DSIS is sensitive to the severity of flatfoot deformities.
Main Methods:
- A study involving 50 children with flatfoot deformities.
- Measurement of the resting calcaneal stance position (RCSP) with and without the DSIS.
- Statistical analysis, including comparison of means and linear regression, to assess significance and sensitivity.
Main Results:
- The DSIS significantly decreased the mean RCSP by an average of 6 degrees.
- No statistically significant difference was found between the neutral calcaneal stance position and the RCSP with DSIS, indicating correction of severe deformities.
- The DSIS demonstrated a significant difference compared to no device, showing considerable correction.
- Linear regression indicated the DSIS is sensitive to deformity severity, preventing overcorrection in milder cases.
Conclusions:
- The DSIS is effective in correcting pediatric flatfoot deformities, returning the foot to a neutral calcaneal stance position.
- The DSIS provides a significant and considerable correction for the RCSP.
- The DSIS offers a promising, sensitive alternative to traditional pediatric corrective devices, adaptable to varying deformity severities.
Abstract:
In a study of 50 children, the Dynamic Stabilizing Innersole System (DSIS) was found to decrease the mean resting calcaneal stance position (RCSP) by an average of 6 degrees. A comparison between the neutral calcaneal stance position and the RCSP with the DSIS showed no statistically significant difference between the means for the right or left foot, indicating that the DSIS is capable of returning severe flat foot deformities to their neutral calcaneal stance position. The RCSP with and without the DSIS differed significantly, indicating that the DSIS provides a considerable and statistically significant amount of correction in the RCSP in our study population. Furthermore, the results of linear regression showed that the DSIS appears to be sensitive to the severity of the deformity, preventing overcorrection of less severe flatfoot deformities and providing a long awaited alternative to traditional pediatric corrective flatfoot devices.