Radiological assessment of the effects of a full rolling motion shoe during asymmetrical bearing.

The study investigates the impact of a specific type of shoe called a “full rolling motion shoe” on asymmetrical load bearing in the joints of the foot, using a novel radiological technique.

Methodology

• The authors devised a unique radiological procedure to measure asymmetrical joint pressure in the interphalangeal joints – the joints that connect the bones of the fingers and toes.
• This method involves the measurement of three angles from dorsopalmar x-ray images, dorsopalmar referring to the direction from the back to the palm or sole of the body.
• These angles are then studied during experimental asymmetrical bearing – a scenario in which uneven pressure is placed on the foot.

Findings

• The researchers found two of the angles measured to be valuable parameters for assessing asymmetric articular (joint) compression and for determining the position of the phalanx, the bones in the fingers and toes, within the horny box or hoof in ungulate animals, though it’s possible the authors intended this as metaphorical language for some aspect of human foot anatomy.
• The team then studied how these angles changed under asymmetric load without a shoe, with an ordinary shoe, and with an orthopedic ‘full rolling motion’ shoe. This type of shoe is designed to mimic the natural, rolling motion of the foot as it walks or runs, encouraging a more natural stride and potentially reducing injury.
• The study concluded that the effects of asymmetrical load bearing were lessened when the foot was fitted with the full rolling motion shoe.

Significance

• This research is significant because it suggests a potential solution to mitigate issues related to asymmetrical load bearing on the foot, which can lead to pain and potential injury.
• Moreover, the developed radiological technique could also find broader application in assessing joint pressure in other scenarios and body parts.