Plantar Fasciosis (Heel Pain)
Plantar Fasciosis is a foot condition characterized by heel pain and pain in your plantar fascia—a strong and dense connective tissue structure on the sole of your foot that supports your foot arch.
This condition has historically been called Plantar Fasciitis because it was believed that plantar fascia inflammation was the principle underlying cause.
Plantar Fasciosis is a more accurate name for this condition because it involves degeneration – micro tears, cell death of your plantar fascia, not inflammation.
During initial periods of weight bearing after rest, the patient presents with a dull-to-sharp pain in the medial plantar calcaneal area.
The pain is more severe in the morning when first arising because the plantar fascia is more inflexible at this time.
Excess subtalar joint pronation lowers the arch structure, elongates the foot, and places a tractional force on the plantar fascia.
Over time, these tractional forces result in inflammation of the fascia and surrounding tissues, causing pain in the arch and heel. This may lead to the development of a bony growth on the calcaneal tuberosity (heel spur), causing a sharp pain right in the center of the heel.
Tight calf muscles can add to plantar facial pain if the foot cannot dorsiflex at the level of the ankle during the propulsive phase of gait.