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The present study introduces an automated device for the controlled application of the Semmes-Weinstein 10g monofilament (SWM-10g), designed for quantitative assessment of plantar sensitivity and early detection of diabetic peripheral neuropathy (DPN). As a common complication of diabetes mellitus, DPN increases the risk of lower extremity ulceration and amputation. Our research introduces an innovative automated application technique for SWM10g, characterized by its unique design, efficient methodology, and significant advantages in reduced size and enhanced portability compared to previous approaches documented in scientific literature [19–21]. Ten healthy Colombian volunteers (4 men, 6 women; aged 20–50 years) participated with University Ethics Committee approval. Assessments covered six regions on each foot's plantar surface, with three repetitions per region, totaling 360 measurements. Results were consistent between both methods, reporting normal tactile plantar sensitivity thresholds below 5.0 g-force with a mean of approximately 1.0 g-force. Participants reported positive sensitivity with the traditional manual SWM-10g monofilament test, which demonstrated 100% specificity. Sensitivity comparisons across all contact points revealed that the 1st metatarsal and calcaneal branch points exhibited significantly lower sensitivity compared to other evaluated points (p < 0.01). Gender-based comparative analysis yielded no statistically significant differences. This research is preliminary and focuses on the innovation of a device for the evaluation and measurement of plantar sensitivity, with clinical evaluation not being its main objective. The clinical assessment and results presented in this study constitute complementary work carried out to test the equipment's functionality, which also explains the limited number of subjects included in the study. Further refinement of the development is recommended before subsequent evaluation in patients with DPN, complemented by comparisons with nerve conduction studies (NCS) and autonomic function testing (AFT) for early detection of sensitivity loss. The methodology establishes groundwork for the quantitative assessment of plantar sensitivity thresholds and demonstrates potential for enhanced accuracy.

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A Robotic System Integrating the Semmes-Weinstein Monofilament (SWM10g) for Automated Plantar Sensory Evaluation: Novel Approach for Early DPN Detection

  • 会议论文

  • 发表日期：

    2025年

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  • César Augusto Moreno Baracaldo,
  • Martha Zequera Díaz

摘要

The present study introduces an automated device for the controlled application of the Semmes-Weinstein 10g monofilament (SWM-10g), designed for quantitative assessment of plantar sensitivity and early detection of diabetic peripheral neuropathy (DPN). As a common complication of diabetes mellitus, DPN increases the risk of lower extremity ulceration and amputation. Our research introduces an innovative automated application technique for SWM10g, characterized by its unique design, efficient methodology, and significant advantages in reduced size and enhanced portability compared to previous approaches documented in scientific literature [19–21]. Ten healthy Colombian volunteers (4 men, 6 women; aged 20–50 years) participated with University Ethics Committee approval. Assessments covered six regions on each foot's plantar surface, with three repetitions per region, totaling 360 measurements. Results were consistent between both methods, reporting normal tactile plantar sensitivity thresholds below 5.0 g-force with a mean of approximately 1.0 g-force. Participants reported positive sensitivity with the traditional manual SWM-10g monofilament test, which demonstrated 100% specificity. Sensitivity comparisons across all contact points revealed that the 1st metatarsal and calcaneal branch points exhibited significantly lower sensitivity compared to other evaluated points (p < 0.01). Gender-based comparative analysis yielded no statistically significant differences. This research is preliminary and focuses on the innovation of a device for the evaluation and measurement of plantar sensitivity, with clinical evaluation not being its main objective. The clinical assessment and results presented in this study constitute complementary work carried out to test the equipment's functionality, which also explains the limited number of subjects included in the study. Further refinement of the development is recommended before subsequent evaluation in patients with DPN, complemented by comparisons with nerve conduction studies (NCS) and autonomic function testing (AFT) for early detection of sensitivity loss. The methodology establishes groundwork for the quantitative assessment of plantar sensitivity thresholds and demonstrates potential for enhanced accuracy.