WILLIAM LEDOUX, Ph.D.

Publications

Ledoux, W. R., Hirsch, B. E., Church, T. and Caunin, M. “Pennation angles of the intrinsic muscles of the foot”, Journal of Biomechanics, 34(3), p 399-403, 2001

Digiovanni, C. W., Holt, S., Czerniecki, J.M., Ledoux, W. R., and Sangeorzan, B. J. “Can the Presence of Equinus Contracture be Established by Physical Exam Alone?” Journal of Rehabilitation Research and Development, 38, p 335-340, May/June 2001

Ledoux, W. R., and Hillstrom, H. J. “Acceleration of the calcaneus at heel strike in neutrally aligned and pes planus feet”, Clinical Biomechanics, 16(7), p 608-613, 2001

Ledoux, W. R., and Hillstrom, H. J. “The distributed plantar vertical force of neutrally aligned and pes planus feet”, Gait and Posture, 15(1), p 1-9, 2002

Camacho, D. L. A., Ledoux, W. R., Rohr, E. S., Sangeorzan, B. J., and Ching, R. P. “A three dimensional, anatomically detailed foot model: A foundation for a finite element model and means of quantifying foot bone position”, Journal of Rehabilitation Research and Development, 39(3), 401-410, 2002

Schildhauer, T. A., Ledoux, W. R., Chapman, J. R., Henley, M. B., Tencer, A. F., Routt, Jr., and M. L. C. “Triangular osteosynthesis and iliosacral screw fixation for unstable sacrum fractures: A biomechanical evaluation under cyclic loads”, Journal of Orthopaedic Trauma, 17(1), 22-31, 2002

Olson, S. L., Ledoux, W. R., Ching, R. P. and Sangeorzan, B.J. “Muscular imbalances resulting in a clawed hallux”, Foot and Ankle International, 24(6), p 477-485, 2003

Ledoux, W. R., Shofer, J. B., Boyko, E. J., Ahroni, J. H., Smith, D. G., and Sangeorzan, B. J., "Biomechanical differences among pes cavus, neutrally aligned, and pes planus feet in diabetic subjects”, Foot and Ankle International, 24(11), 845-50, 2003

Ledoux, W. R., Meaney, D. F. and Hillstrom, H. J. “A quasi-linear, viscoelastic, structural model of the plantar soft tissue with frequency sensitive damping properties”, Journal of Biomechanical Engineering, 126, 1-7, 2004

Ledoux, W. R., and Sangeorzan, B. J. “Clinical biomechanics of the peritalar joint”, Foot and Ankle Clinics, 9(4), 663-683, 2004

Peery, J. T., Ledoux, W. R., and Klute, G. K. “Residual limb skin temperature in transtibial sockets”, Journal of Rehabilitation Research and Development, 42(4), p147-154, March/April 2005

Wang, W.-C., Ledoux, W. R., Sangeorzan, B. J., and Reinhall, P. G., “A shear and plantar pressure sensor based on fiber optic bend loss”, Journal of Rehabilitation Research and Development, 42(3), p315-326, May/June 2005

Blackwood, C. B., Yuen, T. J., Sangeorzan, B. J., and Ledoux, W. R. “The midtarsal joint locking mechanism”, Foot and Ankle International,26(12), p1074-1080, 2005 Ledoux, W. R., Shofer, J. B., Smith, D. G., Sullivan, K., Hayes, S. G., Assal, M., and Reiber, G. E. “The relationship between foot type, foot deformity and ulcer occurrence in the high-risk diabetic Foot”, Journal of Rehabilitation Research and Development, 42(5), p665-72 Sep/Oct 2005

Mkandawire, C., Ledoux, W. R., Sangeorzan, B. J., and Ching, R. P., “Foot and ankle ligament morphometry”, Journal of Rehabilitation Research and Development, 42(6), p809-20, Nov/Dec 2005

Peery, J. T., Klute, G. K., Blevins, J. J., and Ledoux, W. R. “A three-dimensional finite element model of the transibial residual limb and prosthetic socket to predict skin temperatures”, IEEE Transactions on Neural Systems and Rehabilitation Engineering, 14(3), p336-43, 2006

Ledoux, W. R., Rohr, E. S., Ching, R. P., and Sangeorzan, B. J. “The effect of foot shape on the three-dimensional position of foot bones”, Journal of Orthopaedic Research, 24(12), p2176-86, 2006

Elias, F. N., Yuen, T. J., Olson, S. L., Sangeorzan, B. J., and Ledoux, W. R. “Surgical intervention for the clawed hallux deformity”, Foot and Ankle International, 28(3), p369-76, 2007

Klute, G. K., Rowe, G. I., Mamishev, A. V., and Ledoux, W. R. “The thermal conductivity of prosthetic sockets and liners”, Prosthetics and Orthotics International, 31(3), p292-99, 2007

Ledoux, W. R. and Blevins, J. J. “The compressive material properties of the plantar soft tissue”, Journal of Biomechanics, 40(13), p2975-2981, 2007

Huanga, C.-Y., Wang, W.-C., Wue, W.-J., and Ledoux, W. R. “Composite optical bend loss sensor for pressure and shear measurement”, IEEE Sensors Journal, Nov;7(11), p1554-65, 2007

Storti, D., Ganter, M. A., Ledoux, W. R., Ching, R. P., Hu, Y., and Haynor, D. “Artifact vs. Anatomy: Dealing with conflict of geometric modeling descriptions”, SAE 2007 Transactions Journal of Passenger Cars: Electronic and Electrical Systems, 2007-01-2450, 2007

Storti, D., Ganter, M. A., Ledoux, W. R., Ching, R. P., Hu, Y., and Haynor, D. “Wavelet SDF-reps: Solid modeling with volumetric scans”, accepted by the Journal on Computing and Information Science in Engineering, December 2007

Wang, W.-C., Ledoux, W. R., Huanga, C.-Y., Huanga, C.-S., Klute, G. K., and Reinhall, P. “Development of a microfabricated optical bend loss sensor for distributive pressure measurement”, IEEE Transactions on Biomedical Engineering, Feb;55(2), p614-25, 2008

Aubin, P. M., Cowley, M. S. and Ledoux, W. R. “Gait simulation via a 6-DOF parallel robot with iterative learning control”, IEEE Transactions on Biomedical Engineering, Mar;55(3), p1237-40, 2008

Cowley, M. S., Boyko, E. J., Shofer, J. B., Ahroni, J. H., Ledoux, W. R. “Foot ulcer risk and location in relation to prospective clinical assessment of foot shape and mobility among persons with diabetes”, Diabetes Research and Clinical Practice, accepted for publication July 2008

Huff, E. A., Ledoux, W. R., Berge, J. S., and Klute, G. K. “Measuring Residual Limb Skin Temperatures at the Skin-prosthesis Interface”, Journal of Prosthetics and Orthotics, accepted for publication July 2008

Daines, S. B., Rohr, E. S., Pace, A. P., Fassbind, M. J., Sangeorzan, B. J. and Ledoux, W. R. “Cadaveric simulation of a pes cavus foot”, Foot and Ankle International, accepted for publication, August 2008

Abstracts since 2004

Mkandawire, C., Ledoux, W. R., Sangeorzan, B. J., and Ching, R. P. “Relationship between morphometry and structural properties of foot and ankle ligaments”, Proceedings of the 50th Annual Meeting of the Orthopaedic Research Society, San Francisco, CA: 2004, 1321.pdf (poster presentation)

Peery, J., Klute, G. K., and Ledoux, W. R. “Skin temperatures with transtibial amputee sockets”, Proceedings of the American Academy of Orthotists and Prosthetists, New Orleans, LA: 2004, free paper 5 (podium presentation)

Blackwood, C. B., Yuen, T. J. , Sangeorzan, B. J. and Ledoux, W. R. “Quantification of the midtarsal joint locking mechanism”, Proceedings of the 20th Annual Summer Meeting of the American Orthopaedic Foot and Ankle Society, Seattle, WA: 2004, p. 155 (poster presentation)

Yuen, T. J., Elias, F. N., Olsen, S. L., Ching, R. P., Sangeorzan, B. J. and Ledoux, W. R. “Surgical intervention for the clawed hallux deformity”, Proceedings of the 20th Annual Summer Meeting of the American Orthopaedic Foot and Ankle Society, Seattle, WA: 2004, p. 68 (poster presentation)

Ledoux, W. R., Rohr, E. S., Harp, C., Ching, R. P., and Sangeorzan, B. J. “The effect of foot type on plantar pressure”, Proceedings of the 28th Annual Meeting of the American Society of Biomechanics, Portland, OR: 2004, 244.pdf (poster presentation)

Rohr, E. S., Ledoux, W. R., Shofer, J. B., Ching, R. P. and Sangeorzan, B. J. “Classification tree analysis of foot types using 3-D measures”, Proceedings of the 28th Annual Meeting of the American Society of Biomechanics, Portland, OR: 2004, 321.pdf (poster presentation)

Rohr, E. S., Ledoux, W. R., Ching, R. P. and Sangeorzan, B. J. “Talar morphology: Changes associated with symptomatic and asymptomatic flat feet”, Proceedings of the 51st Annual Meeting of the Orthopaedic Research Society, Washington, DC: 2005, 500.pdf (poster presentation)

Rohr, E., Shofer, J., Harp, C., Sangeorzan, B. and Ledoux, W. “Reliability of peak pressure between foot types”, Proceedings of the 10th Annual Meeting of the Gait and Clinical Movement Analysis Society, Portland, OR: 2005, p. 109 (poster presentation)

Harp, C., Rohr, E., Orendurff, M., Sangeorzan, B. and Ledoux, W. “Use of an electromagnetic tracking device in foot motion analysis: Validation with neutrally aligned feet”, Proceedings of the 10th Annual Meeting of the Gait and Clinical Movement Analysis Society, Portland, OR: 2005, p. 145 (poster presentation)

Ledoux, W. R., Cowley, M. S., Ahroni, J. H., Forsberg, R. C., Stensel, V. L., Shofer, J. B. and Boyko, E. J. “No relationship between plantar pressure and diabetic foot ulcer incidence after adjustment for ulcer location”, Proceedings of the 65th Annual Scientific Sessions of the American Diabetes Association, San Diego, CA: 2005 (podium presentation)

Orendurff, M., Sangeorzan, B., Rohr, E., Czerniecki, J. and Ledoux, W. “Ankle equinus has limited impact upon peak forefoot pressure during walking”, Proceedings of the 21st Annual Summer Meeting of the American Orthopaedic Foot and Ankle Society, Boston, MA: 2005 (podium presentation)

Lipski, G., Blevins, J. B., Sangeorzan, B. J, and Ledoux, W. R. “Investigation of muscle imbalances related to the dorsal bunion”, Proceedings of the 21st Annual Summer Meeting of the American Orthopaedic Foot and Ankle Society, Boston, MA: 2005 (podium presentation)

Cowley, M., Berti, L., Leardini, A., Rohr, E., Ledoux, W. and Orendurff, M. “Effect of marker placement methods on calcaneal rotations”, Proceedings of the 20th Congress of the International Society of Biomechanics, Cleveland, OH: 2005 (podium presentation)

Cowley, M., Berti, L., Benedetti, M. G., Rohr, E., Ledoux, W. and Orendurff, M. “Differences in midfoot rotations between foot types”, Proceedings of the 20th Congress of the International Society of Biomechanics, Cleveland, OH: 2005 (poster presentation)

Cowley, M. S., Ledoux, W. R., Shofer, J. B., Ahroni, J. H., and Boyko, E. J. “A prospective look at foot shape and foot ulcer development”, Proceedings of the 20th Congress of the International Society of Biomechanics, Cleveland, OH: 2005 (podium presentation)

Ledoux, W. R., Rohr, E. S., Shofer, J. B., Ching, R. P., and Sangeorzan, B. J. “Forefoot plantar pressure is related to 3-D CT derived measures”, Proceedings of the 20th Congress of the International Society of Biomechanics, Cleveland, OH: 2005 (podium presentation)

Ledoux, W. R., Blevins, J. J., and Sangeorzan, B. J. “Quasi-linear viscoelastic properties of the plantar soft tissue in compression”, Proceedings of the 20th Congress of the International Society of Biomechanics, Cleveland, OH: 2005 (poster presentation)

Rowe, G. I., Ledoux, W. R., Klute, G. K., and Mamishev, A. V. “Fringing electric field sensor arrays for amputee residual limb interface”, Proceedings of the Annual Meeting of American Association for the Advancement of Science, St. Louis, MO: 2006 (poster presentation)

Orendurff, M. S., Britt, S. M., Ledoux, W. R., Klute, G. K., and Sangeorzan, B. J. “Functional walking behavior is similar following ankle arthrodesis and ankle arthroplasty”, Proceedings of the 73rd Annual Meeting of the American Academy of Orthopaedic Surgeons, Chicago, IL: 2006 (podium presentation)

Fassbind, M., Rohr, E. S., Sangeorzan, B. J., and Ledoux, W. R. “Quantifying foot bone motion via magnetic resonance imaging”, Proceedings of the 52nd Annual Meeting of the Orthopaedic Research Society, Chicago, IL: 2006 (podium presentation)

Blackman, A. J., Blevins, J., Sangeorzan, B. J., and Ledoux, W. R. “The effects of Achilles tendon overpull on a cadaveric flatfoot model”, Proceedings of the 52nd Annual Meeting of the Orthopaedic Research Society, Chicago, IL: 2006 (poster presentation)

Klute, G. K., Berge, J. S., Huff, E., and Ledoux, W.R., “The effect of rest and exercise on residual limb skin temperatures,” Proceedings of the 32nd American Academy of Orthotists and Prosthetists Annual Meeting and Scientific Symposium, Chicago, IL: 2006 (podium presentation)

Ledoux, W., Fassbind, M., Rohr, E., Hu, Y., Haynor, D., and Sangeorzan, B. “Foot bone motion during patient specific movements”, Proceedings of the 5th World Congress of Biomechanics, Munich, Germany: 2006 (poster presentation)

Aubin, P. M., Cowley, M. S., and Ledoux, W. R. “Cadaveric gait simulation”, Proceedings of the 30th Annual Meeting of the American Society of Biomechanics, Blacksburg, VA: 2006 (podium presentation)

Fassbind, M. J., Rohr, E. S., Sangeorzan, B. J., and Ledoux, W. R. “Foot bone motion during circumduction”, Proceedings of the 30th Annual Meeting of the American Society of Biomechanics, Blacksburg, VA: 2006 (poster presentation)

Pace, A. P., Fassbind, M. J., Daines, S. B., Rohr, E. S., Sangeorzan, B. J. and Ledoux, W. R. “Cadaveric model of a dorsal bunion”, Proceedings of the 53rd Annual Meeting of the Orthopaedic Research Society, San Diego, CA: 2007 (poster presentation)

Daines, S. B., Rohr, E. S., Pace, A. P., Fassbind, M. J., Sangeorzan, B. J. and Ledoux, W. R. “Cadaveric simulation of a pes cavus foot”, Proceedings of the 53rd Annual Meeting of the Orthopaedic Research Society, San Diego, CA: 2007 (poster presentation)

Ledoux, W. R. and Sangeorzan, B. J. “The biomechanics of the subtle cavus foot”, 37th Winter Meeting of the Annual American Orthopaedic Foot and Ankle Society, Specialty Day at the 2007 American Academy of Orthopaedic Surgeons, San Diego, CA: February 2007 (podium presentation)

Klute, G., Huff, E. and Ledoux, W. “In-socket skin temperatures and perception of comfort over a whole day”, Proceedings of the 32nd American Academy of Orthotists and Prosthetists Annual Meeting and Scientific Symposium, San Fransisco, CA: 2007 (podium presentation)

Sangeorzan, B. J., Rohr, E. S. and Ledoux, W. R. “Mechanical differences between symptomatic and asymptomatic pes planus”, Proceedings of the 23rd Annual Summer Meeting of the American Orthopaedic Foot and Ankle Society, Toronto, Ontario: 2007 (podium presentation)

Ledoux, W. R., Fassbind, M. J., Rohr, E. S., Hu, Y. P., Haynor, D. R. and Sangeorzan, B. J. “A new method for quantifying foot bone-to-bone positions”, Proceedings of the 31st Annual Meeting of the American Society of Biomechanics, Palo Alto, CA: 2007 (podium presentation)

Dengler, E. D. W., Fassbind, M. J. and Ledoux, W. R. “A Finite Element Foot Model: Simulation of a Clawed Hallux”, Proceedings of the 54th Annual Meeting of the Orthopaedic Research Society, San Francisco, CA: 2007 (poster presentation)

Segal A. D., Rohr E. S., Sutton H., Ledoux W. R., Wheeler J. and Sangeorzan B.J. “Low function in patients with end-stage ankle arthritis is associated with reduced power generation, ankle range of motion, and higher weight”, Proceedings of the 24th Annual Summer Meeting of the American Orthopaedic Foot and Ankle Society, Denver, Colorado: 2008 (podium presentation)

Jackson, L. T., Aubin, P. M., Cowley, M. S., Sangeorzan, B. J. and Ledoux, W. R. “A robotic simulation of stance phase”, Proceedings of the 32st Annual Meeting of the American Society of Biomechanics, Ann Arbor, MI: 2008 (poster presentation)

This Site is for patients and researchers interested in prosthetic and amputation research. Veterans can find VA health care information at the VA home page.