The Direct Impact Effect of Different Foot Orthotic Designs on the Plantar Loading of Patients with Structural Hallux Limitus: A Quasi-Experimental Study

Background: This study examines the effect of two types of custom-made foot orthoses (CFOs) in patients with structural hallux limitus (SHL). Methods: In this quasi-experimental, repeated measures study, 24 participants with SHL were sampled. Two CFOs—cut-out CFO and anterior stabilizer element (AFS...

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Published in:Applied sciences 2024-10, Vol.14 (20), p.9510
Main Authors: Martinez-Rico, Magdalena, Gijon-Nogueron, Gabriel, Ortega-Avila, Ana Belen, Roche-Seruendo, Luis Enrique, Climent-Pedrosa, Ana, Sanchis-Sales, Enrique, Deschamps, Kevin
Format: Article
Language:English
Subjects:
Biomechanics
center of pressure
Comparative analysis
Design
foot orthosis
hallux limitus
Orthopedic equipment and supplies
plantar pressures
Pressure distribution
Quasi-experimental methods
Range of motion
treatment
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Summary:Background: This study examines the effect of two types of custom-made foot orthoses (CFOs) in patients with structural hallux limitus (SHL). Methods: In this quasi-experimental, repeated measures study, 24 participants with SHL were sampled. Two CFOs—cut-out CFO and anterior stabilizer element (AFSE) CFO—were compared using minimalist SAGURO neoprene shoes: no foot orthoses (FO), cut-out CFO, and AFSE CFO. Plantar pressures and center of pressure (CoP) displacement were measured using a Podoprint® platform. Results: Both CFOs shifted the CoP medially during midstance (p < 0.001 with AFSE CFO and p = 0.0036 with cut-out CFO). The AFSE CFO showed a more anterior CoP in midstance, while the cut-out CFO affected anterior CoP in midstance and pre-swing. The AFSE CFO significantly increased pressure in the second toe, lesser metatarsal heads (MTH), midfoot, and rearfoot. In contrast, the cut-out CFO decreased pressure in the second MTH and lesser toe regions, increasing pressure in the midfoot and heel. Both CFOs lowered the hallux/first MTH ratio compared to shod without CFO. Conclusions: The cut-out CFO led to medial and anterior CoP displacement, reducing lateral foot and hallux pressure while transferring loads to the first MTH. The AFSE CFO caused a similar shift by increasing loads on the first MTH.
ISSN:2076-3417
2076-3417
DOI:10.3390/app14209510