Ballet, in France, has only one recognized occupational illness – the hallux valgus. It affects 89.1% of female dancers.
Hallux valgus is a deformation of the fore-foot commonly known as a bunion.
Anatomically it corresponds to a deformation of the 1st row combining the valgus of the big toe and the varus of the first metatarsal. It occurs mainly on Egyptian feet; feet where the big toe is longer than the second one.
There are numerous aetiological factors in ballet:
-dancing on points and the narrowness of the ballet shoes,
-congenital hyper-mobility,
-compensation for external hip rotation insufficiency by middlerolling the foot and pushing the big toe into a valgus position,
-muscular insufficiency of the fore-foot muscles, caused, in particular, by prolonged exercising in ballet shoes which are too tight,
-the common foot pronation and eversion in point position,
The hallux valgus is generally well tolerated amongst female dancers.
Treatment must be medical: modification in footwear, local massages, strengthening of the intrinsic musculature of the foot, sometimes the wearing of a strapping.
Surgical treatment is only suggested under exceptional circumstances. The stiffening of the first metatarsophalangeal which is common after surgery, in fact, makes the "demi-pointe" position impossible.
Bibliography:
Costes F, Desoilles H, Illouz G, Chavy AL. Appareil locomoteur et danse classique. Rev Rhum et Mal ostéoarticulaires 1960; 27: 259-267.
Groulier P.: Traitement chirurgical de l’hallux valgus et des métatarsalgies associées. In "le pied" Actualités en médecine chirurgie et rééducation sous la dri. Chiron P. et Uthéza G. Masson 1991.
THE RUDOLF NUREYEV MEDICAL WEBSITE - Dedicated to dancers and health professionals