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Table 2 Intervention and control insoles

From: Foot orthoses for first metatarsophalangeal joint osteoarthritis: study protocol for the FORT randomised controlled trial

Contoured foot orthoses (intervention) Sham flat insole (control)
Blue FormthoticTM (Foot Science International)
Blue, medium density (140 kg/m3 single-density, closed-cell polyethylene foam) prefabricated FormthoticTM which possesses heel and arch support. A first MTP joint cut out is added if tolerated, and a blue 4°medium density varus wedge is added if the Foot Posture Index score is >7.
Blue flat insole (Foot Science International)
Blue, medium density (140 kg/m3 single-density, closed-cell polyethylene foam) 3mm flat insole.
  1. Images taken from Bonanno et al. [28]