Relationship between plantar pressure and sensory disturbance in patients with hansen’s disease—preliminary research and review of the literature

Syoichi Tashiro, Naoki Gotou, Yuki Oku, Takahiro Sugano, Takuya Nakamura, Hiromi Suzuki, Nao Otomo, Shin Yamada, Tetsuya Tsuji, Yutaka Asato, Norihisa Ishii

Research output: Contribution to journalArticlepeer-review

Abstract

Orthoses and insoles are among the primary treatments and prevention methods of refractory plantar ulcers in patients with Hansen’s disease. While dynamic plantar pressure and tactile sensory disturbance are the critical pathological factors, few studies have investigated whether a relationship exists between these two factors. In this study, dynamic pressure measured using F-scan system and tactile sensory threshold evaluated with monofilament testing were determined for 12 areas of 20 feet in patients with chronic Hansen’s disease. The correlation between these two factors was calculated for each foot, for each clinical category of the foot (0–IV) and across all feet. A significant correlation was found between dynamic pressure and tactile sensation in Category II feet (n = 8, p = 0.016, r2 = 0.246, Spearman’s rank test). In contrast, no significant correlation was detected for the entire foot or within the subgroups for the remainder of the clinical categories. However, the clinical manifestation of lesion areas showed high variability: (1) pressure concentrated, sensation lost; (2) margin of pressure concentration, sensation lost; (3) pressure concentrated, sensation severely disturbed but not lost; and (4) tip of the toe. These results may indicate that, even though there was a weak relationship between dynamic pressure and tactile sensation, it is important to assess both, in addition to the basics of orthotic treatment in patients with Hansen’s disease presenting with refractory plantar ulceration.

Original languageEnglish
Article number6976
Pages (from-to)1-18
Number of pages18
JournalSensors (Switzerland)
Volume20
Issue number23
DOIs
Publication statusPublished - 2020 Dec 1

Keywords

  • Gait analysis
  • Hansen’s disease
  • Insole
  • Leprosy
  • Orthosis
  • Peripheral neuropathy
  • Precision rehabilitation
  • Prosthesis
  • Wound

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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