Subtalar Joint Range of Motion With Foot Skeleton

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Dr. Kirby demonstrates the gliding articular motions of the talus and calcaneus during subtalar joint pronation and supination.

The maximally pronated position of the subtalar joint occurs when the lateral process of the talus drops down into the floor of the sinus tarsi of the calcaneus and is stopped by interosseous contact forces. Subtalar joint supination causes an increase in the volume of the sinus tarsi since the lateral process of the talus is moving away from the floor of the sinus tarsi of the calcaneus.

Sinus tarsi syndrome occurs when the interosseous compression forces between the lateral process of the talus and the floor of the sinus tarsi of the calcaneus are increased in patients with more severe medial subtalar joint axis deviation and/or with painful scar tissue within the sinus tarsi from inversion ankle sprains or other traumatic pathologies.
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hi, nice video. I heard it twice, I think as we are facing the cuboid ie the lateral aspect of the foot, you mistakenly used pronation and supination terms oppositely. Correct me if I am wrong. thanks.

ilizarovpak
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This was extremely useful. Thank you very much

GrandmaBetty
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Really helpful video. Dr told me that i have bi lateral secondary degenerative ankle disease and need both fused. Im 37..☹️

LS-hqqe
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And this is on a closed chain foot movement?

leeroberts
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thank you for the video.
i have a question- how could it be that when we pronate, that the lateral process of the talus is hits the floor of the sinus tarsi? it's not supposed to be the medial process?

shirazteitelboim
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Hello Dr. Kirby,

I am interested to know your opinion of the Hyprocure solution for abnormal talo-calcaneal pronation. When this is correctly indicated by history, physical examination and imaging studies, do you advocate Hyprocure, do you use it, and do you believe it is a superior option to an external orthotic?

dieterfellnerdpm