The First Distal Phalanx is in the Hallux (Great Toe/Big Toe)
The first distal phalanx refers to the distal phalanx of the hallux, which is the great toe or big toe. This is the terminal bone of the first digit of the foot 1, 2.
Anatomical Clarification
The hallux (first toe) contains the first distal phalanx, which is the most distal bone in the great toe 1. This anatomical landmark is consistently referenced in clinical practice for:
Sensory testing: The tuning fork is applied on the bony dorsal surface of the distal phalanx of the first toe when assessing vibration sense in diabetic neuropathy screening 1, 2
Clinical examination: This specific location is chosen because it provides a reliable bony prominence for standardized neurological assessment 2
Clinical Relevance
The first distal phalanx has distinct clinical characteristics that differentiate it from the other toes (digits 2-5):
Ulcer management: Hallux ulcers are typically caused by different deformities or limited joint motion compared to ulcers on digits 2-5 3, 4
Surgical considerations: Digital flexor tenotomy is specifically not recommended for the first toe, as this procedure is reserved for digits 2-5 with flexible toe deformities 3, 4
Pathology patterns: The distal phalanx of the hallux commonly develops medial and lateral exostoses (bony protrusions) at its base, with prevalence rates of approximately 51.9% in studied populations 5, 6