intrinsic minus foot

What is the intrinsic minus foot that occurs in diabetes?

The intrinsic minus foot is a foot type that can occur in diabetes when peripheral neuropathy develops. Due to the neuropathy there is a wasting of the intrinsic muscles leading to a clawing of the toes. As the toes claw, the metatarsals plantarflex and with the wasting of the muscle mass in the arch, it gives the appearance of a pes cavus or high arched foot.

This alters the biomechanics of the foot causing a number of complications such as corns on the toes and calluses under the foot that redispose to to ulceration.

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