Post-Traumatic Types

   It could be a Sharp injury where the internal capsule and the medial collateral ligament have been cut or a trauma-induced rupture, with an impact causing an extreme lateral deviation, can induce a acutre Hallux Valgus deformity.

    Multiple metatarsal neck fractures causing a lateral blow of the toes and, in due course, a Hallux Valgus case.

    Iatrogenic (induced by treatment) causes: If the 2nd toe has been amputated and the big toe is not leaning against the 3rd. toe prior the surgery, leading to a worsening or the onset of Hallux Valgus ( the great toe will always finish touching the next lateral toe ). (see below, right).

Other Trauma-Induced Types

Traumas (section or rupture) of the anterior tibial is tendon: In order to compensate for this, patients favour the use the long extensor of the big toe to dorsiflex the ankle. With time a Hallux Valgus can appear.
Herewith : A complete rupture of the anterior tibial tendon. The long extensor of the 1st toe does all the work to dorsi-flex the ankle. After a while, an acute and painful Hallux Valgus developed, followed by a lateral subluxation of the long extensor of the big toe and soon thereafter the sesamoid belt was out of line.

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