Hallux, Absent

Definition:

Objective: The absence of both phalanges of a hallux and the associated soft tissues

Comments:

This descriptor does not require absence of the metatarsal. The definition excludes partial absent hallux. Oligodactyly and hypodactyly are replaced with more specific terms to allow the distinction of loss of a preaxial digit (thumb or great toe) from loss of digits 2-5. When a great toe and one or more other toes are absent, it may be more economical to specify Absent toes, T1-3 instead of separately specifying Absent hallux and Absent toes T2-3.

Synonyms:

• Absent Great Toe

Replaces:

• Hypodactyly
• Oligodactyly

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