BIOMECHANICS OF HALLUX RIGIDUS: Myths and Misconceptions Douglas H. Richie, Jr., D.P.M. Clinical Associate Professor, Department of Applied Biomechanics, California School of Podiatric Medicine Seal Beach Podiatry Group Inc
[email protected] Hallux Limitus and Hallux Rigidus: Exploring the Myths and Misconceptions Douglas H. Richie, Jr. D.P.M. Seal Beach, California
[email protected] Associate Professor of Podiatric Medicine, Western University of Health Sciences Adjunct Associate Professor of Clinical Biomechanics, California School of Podiatric Medicine, Oakland CA Douglas H. Richie, Jr. D.P.M. Seal Beach, California
[email protected] Doug Richie D.P.M. gratefully acknowledges the Associate Professor of Podiatric Medicine, support and friendship of Western University of Health Sciences Paris Orthotics Adjunct Associate Professor of Clinical Biomechanics, California School of Podiatric Medicine, Oakland CA For lecture notes: www.RichieBrace.com www.richiebrace.com LIMITATION OF RANGE OF MOTION OF THE 1ST MTPJ Hallux Flexus : Davies-Colley (1887) Hallux Rigidus: Cotterill (1887) Hallux limitus: Hiss (1931) Functional Hallux Limitus: Laird (1972) MYTHS AND MISCONCEPTIONS ABOUT HALLUX RIGIDUS Normal range of motion of the 1st MTPJ 1. A minimum of 60 degrees of dorsiflexion of the hallux on the 1st Met is required for normal gait (True or False?) Reports of clinical measurements of ROM of 1st MTP: 65-110 Degrees Dorsiflexion (Buell, Hopson, Joseph, Mann, Shereff) Reports of ROM during gait: 50-90 degrees Dorsiflexion (Buell, Hopson, Johnson, Milne, Sammarco) Question #1 MYTHS AND MISCONCEPTIONS ABOUT HALLUX RIGIDUS Normal range of motion of the 1st MTPJ Clinical assessment of ROM of the 1st MTPJ “Relationship Between Clinical Measurements and Motion of the First Metatarsophalangeal Joint During Gait” Nawoczenski et al.