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Shay Tenenbaum, MD; Nogah Shabshin, MD; Ayelet Levy, BSc; Amir Herman, MD; Amit Gefen, PhD

Effects of foot posture and heel padding devices on soft tissue deformations under the heel in supine position in males: MRI studies. Shay Tenenbaum, MD; Nogah Shabshin, MD; Ayelet Levy, BSc; Amir Herman, MD; Amit Gefen, PhD. Aim

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Shay Tenenbaum, MD; Nogah Shabshin, MD; Ayelet Levy, BSc; Amir Herman, MD; Amit Gefen, PhD

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  1. Effects of foot posture and heel padding devices on soft tissue deformations under the heel in supine position in males: MRI studies Shay Tenenbaum, MD; Nogah Shabshin, MD; Ayelet Levy, BSc; Amir Herman, MD; Amit Gefen, PhD

  2. Aim • Explore effects of foot posture and support stiffness properties on soft tissue deformations using magnetic resonance imaging (MRI). • Relevance • Heel ulcers are 2nd most common pressure ulcers. • Despite heel ulcers’ significant morbidity and economic cost, understanding of basic pathophysiology of pressure ulcers is lacking because of limited basic research.

  3. Method • Subjects were scanned with and without weight bearing, in neutral external rotation position and 90°to supporting surface and with different heel padding devices. • Tissue strains were calculated for: • Skin. • Subcutaneous tissue. • Effective (total) soft tissue.

  4. Results • Skin strains: • Significantly greater with foot in external rotation than with foot upright. • Heel padding devices: • Significantly reduced extent of deformations in both skin and subcutaneous tissues. • Design features substantially influenced tissue deformations.

  5. Conclusion • Study demonstrates how MRI can provide convenient, accurate, and quantitative comparison of biomechanical performance of heel padding devices.

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