Which wedge is used to control eversion of the calcaneus and tibial internal rotation after heel-strike?

Which wedge is used to control eversion of the calcaneus and tibial internal rotation after heel-strike?

• A. Medial wedge (varus post)
• B. Lateral wedge (valgus post)
• C. Forefoot wedge
• D. Rearfoot posting

Answer: (A)

Controlling hindfoot eversion right after heel strike is achieved by placing a varus-producing wedge on the medial side of the heel. This medial wedge (varus post) creates a varus moment at the rearfoot, resisting calcaneal eversion and thereby reducing the associated tibial internal rotation that occurs with pronation in early stance. A lateral wedge would push the hindfoot into more eversion (valgus), which would increase tibial rotation rather than limit it. A forefoot wedge changes forefoot alignment and doesn’t address the hindfoot eversion occurring at heel strike. Rearfoot posting is a broader approach but doesn’t specify the medial varus correction needed to specifically control this eversion after heel strike.

Controlling hindfoot eversion right after heel strike is achieved by placing a varus-producing wedge on the medial side of the heel. This medial wedge (varus post) creates a varus moment at the rearfoot, resisting calcaneal eversion and thereby reducing the associated tibial internal rotation that occurs with pronation in early stance.

A lateral wedge would push the hindfoot into more eversion (valgus), which would increase tibial rotation rather than limit it. A forefoot wedge changes forefoot alignment and doesn’t address the hindfoot eversion occurring at heel strike. Rearfoot posting is a broader approach but doesn’t specify the medial varus correction needed to specifically control this eversion after heel strike.