Plantar Load Analysis of Neuropathic and Neuroischaemic Diabetes-Related Foot Ulceration

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This single-centre observational case-control study investigates how peripheral arterial disease influences plantar load in people with diabetes who have recently healed a plantar foot ulcer. Using in-shoe pressure mapping (Pedar™) and 3D digital image correlation of a plasticine deformable insole (STAMPS system), we will quantify vertical pressure and strain magnitude. Weight-bearing ultrasound will assess plantar fat-pad thickness as a potential corollary for forefoot peak pressure and shear. All procedures are non-invasive and completed in a single ~90-minute visit at Leeds Teaching Hospitals NHS Trust.

A vizsgálat 2 csoportja

• Neuropathic Diabetes-related Foot Ulcer (DFU) Cohort

  Participants with diabetes and a recently healed plantar forefoot (\<3 months) ulcer caused by neuropathic ulceration in the presence of preserved perfusion. Sensory neuropathy is confirmed by insensitivity to the 10 g monofilament (Ipswich Touch Test). Participants have at least one palpable pedal pulse and at least one multiphasic pedal Doppler signal, with opening toe pressure ≥ 60 mmHg. No history of lower-limb revascularisation.

  Kezelés: Pedar™ In-Shoe Plantar Pressure Measurement System, STAMPS 3D Digital Image Correlation System és Weight-Bearing Ultrasound of the Plantar Fat Pad

• Neuroischaemic Diabetes-related Foot Ulcer (DFU) Cohort

  Participants with diabetes and a recently healed plantar forefoot (\<3 months) of neuroischaemic aetiology, showing both sensory neuropathy and peripheral arterial disease. PAD is defined as a prior revascularisation procedure or by the absence of pedal pulses and monophasic or absent Doppler signal with an opening toe pressure ≤ 50 mmHg.

  Kezelés: Pedar™ In-Shoe Plantar Pressure Measurement System, STAMPS 3D Digital Image Correlation System és Weight-Bearing Ultrasound of the Plantar Fat Pad