The cause of a "calcaneal spine" (or plantar fasciitis) is linked to overworking of the foot, often associated with anatomical specificities of the foot that make this region fragile. In fact, lesions of the fascia where it is inserted on the heel bone (the calcaneus) result from several factors. It is mainly biomechanical causes that cause this problem.
This bio-mechanical suffering causes an inflammation of the fascia.
Sometimes this fasciotomy results from over-stressing during prolonged walking, running, jumping, or sometimes after a shock.
For example, following repeated shocks of the heel with each step, during marches, it occurs in the long run problems especially when there exists at this level a certain fragility (static disorders and plantar dynamics). Thus, the causes, or rather the contributing factors, may be a foot too hollow, or on the contrary too flat.
Since the mechanical cause is important, it should also be mentioned as a factor favoring: overweight.
NB: even if on the radio, one can sometimes visualize the calcaneal spine by a sharp outgrowth before the calcaneum, it is not necessarily responsible for the pain of the fasciotomy. It is indeed fibrous lesions of this aponeurosis, associated with an inflammation which first makes suffer ...