As the ‘MLA’ section of the foot orthoses deforms under load does that entail lengthening of the anterior medial ‘corner’ of the foot orthoses and would that possibly irritate the 1st MPJ (or 2nd MPJ in an orthosis with a 1st ray cutout). When Prof Kirby talks of the medial anterior corner ‘binding’ with the shoe upper and causing discomfort to the patient (Precision Intracast Newsletters, 2009-2013, p.74) is this what is involved, an impediment to orthoses lengthening
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Compliancy in foot orthoses query
