Methods of treating abnormalities of the first metatarsophalangeal joint of the foot

A method for treating an abnormality of the first metatarsophalangeal joint of the foot of a mammal comprising:

• electrically stimulating the extensor hallucis brevis muscle of a foot of the mammal affected by the abnormality;
• visually confirming that the stimulated extensor hallucis brevis muscle responds to the stimulating by contracting,
• electrically stimulating the oblique head of the adductor hallucis muscle of the foot of the mammal moving distal to proximal and electrically stimulating the trasverse head of the aductor hallucis muscle of the foot of the mammal moving medial to lateral;
• visually identifying the sites on the stimulated adductor hallucis muscle that respond most strongly to the stimulating;
• and
• administering an amount of botulinum toxin effective to treat said abnormality via muscular injection to the extensor hallucis brevis muscle and to the sites on the adductor hallucis muscle of the affected foot that respond most strongly to the stimulating.