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Kevin Kirby
04-26-2002, 04:03 PM
Sebastien wrote:



Since there is considerable variation in the human population in the
relative angle between the first and 2nd metatarsals [which in the clinical
world, is called the first intermetatarsal angle], then I would suspect that
trying to predict the 2nd metatarsal head position from the positions of
the1st and 5th metatarsal heads would be subject to considerable error.

Hallux abducto valgus deformity, for example, is commonly associated with a
large first intermetatarsal angle which would then place the 1st metatarsal
head at a relatively large distance from the 2nd metatarsal head when
compared to a more normal foot (i.e. without hallux abducto valgus
deformity) where the 1st and 2nd metatarsal heads are located closer to each
other.

The center of the second metatarsal head is quite easily palpated
clinically. I would suggest that another method could probably be used
predict the position of the 2nd metatarsal head with more accuracy depending
on the design of your study.

Sincerely,

Kevin

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Kevin A. Kirby, DPM
Assistant Clinical Professor of Biomechanics
California College of Podiatric Medicine

Private practice:
107 Scripps Drive, Suite #200
Sacramento, CA 95825
USA

Voice: (916) 925-8111 Fax: (916) 925-8136
e-mail: kevinakirby@attbi.com
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