Pedorthic Research

2019 – Hard, Soft and Off-The-Shelf Foot Orthoses and Their Effect on the Angle of the Medial Longitudinal Arch: A Biplane Fluoroscopy Study

Using biplane fluoroscopy, both hard and soft orthotics supported the medial longitudinal arch (MLA) compared to the barefoot and shod conditions for participants with three foot types (pes planus, normal, pes cavus). Custom foot orthoses support and alter the position of the foot during weightbearing, reducing motion of the MLA and redistributing abnormal pressures.
Balsdon M, Dombroski C, Bushey K, Jenkyn TR

2016 – Medial Longitudinal Arch Angle Presents Significant Differences Between Foot Types: A Biplane Fluoroscopy Study

This study used biplane fluoroscopy and markerless radiostereometric analysis to measure medial longitudinal arch (MLA) angles across different foot types—pes planus, pes cavus, and normal arches—during gait. Significant differences were found between foot types and between static and dynamic conditions, supporting the clinical assessment and classification of arch types by specialists.

Megan E. R. Balsdon, Kristen M. Bushey, Colin E. Dombroski, Marie-Eve LeBel and Thomas R. Jenkyn

2014- The use of a low cost 3D scanning and printing tool in the manufacture of custom-made foot orthoses: a preliminary study
Colin E Dombroski, Megan ER Balsdon and Adam Froats

2014- Investigation of the role of calcaneal dimensions in pes cavus and pes planus
Kylen Van Osch, Marjorie Johnson, Megan Balsdon, Colin Dombroski and Thomas Jenkyn

2012- Combined effects of a valgus knee brace and lateral wedge foot orthotic on the external knee adduction moment in patietns with varus gonarthrosis.
Arch Phys Med Rehabil. 2012 Sep 17.

2013 – Combined Effects of a Valgus Knee Brace and Lateral Wedge Foot Orthotic on the External Knee Adduction Moment in Patients With Varus Gonarthrosis

Patients (n=16) with varus alignment and knee osteoarthritis (OA) primarily affecting the medial compartment were fitted for a combination of a custom-fit valgus knee brace and custom-made lateral wedge foot orthoses. The two custom devices used together resulted in the largest reduction in knee adduction moment compared to the control case (no devices).
Moyer RF, Birmingham TB, Colin Dombroski, Walsh RF, Leitch KM, Jenkyn TR, Giffin JR

2012- American Society of Biomechanics Investigating in-vivo motion of the medial longitudinal arch with different orthotic types using lateral fluoroscopy images during dynamic gait
Kristin Bushey, Tom Jenkyn, Colin Dombroski

2012- American Society of Biomechanics A Comparison of the effect of soft and rigid custom-made corrective orthotics and over-the-counter proprioceptive Feedback orthotics on Hindfoot Pronation During Walking Gait: A Two-Dimensional Dynamic Fluroscopic Study
Megan Balsdon, Thomas Jenkyn, Colin Dombroski

2011- American Society of Biomechanics Static Comparison of Subtalar Joint Neutral and neutral Cushioning Running Shoes to Barefoot Stance Using Markerless Radiostreometric Analysis
Megan Balsdon, Kristen Bushey, Colin Dombroski, Thomas Jenkyn.

2011- American Society Of Biomechanics A Comparison of the Effect of Foam-Box Casted and Plaster-Casted Orthotics on the Normal Foot Populations Using Bi-Planar X-Ray Fluoroscopy
Kristin Bushey, Megan Balsdon, Colin Dombroski, Thomas Jenkyn.

2007- American Society of Biomechanics Point Markers Versus Cluster Triads: Multi-Segmental Foot Model Performance is Insensitive to the Architecture of the Reflective Markers Used in Optical Motion Analysis
Kirsten Anas, Tom Jenkyn, Colin Dombroski