J Korean Foot Ankle Soc.  2007 Jun;11(1):13-17.

Incidence of Hallux Valgus Interphalangeus in the Normal and Hallux Valgus Feet and its Correlations with Hallux Valgus Angle and Intermetatarsal Angle

Affiliations
  • 1Department of Orthopaedic Surgery, Konkuk University School of Medicine, Seoul, Korea. jungfoot@hanmail.net
  • 2Department of Orthopaedic Surgery, Dankook University College of Medicine, Cheonan, Korea.

Abstract

PURPOSE: In order to achieve successful outcome for the hallux valgus surgery, it is mandatory to consider the possible associated hallux valgus interphalangeus, and therefore the hallux interphalangeal angle (HIA) other than hallux valgus angle (HVA) and intermetatarsal angle (IMA) has been well appreciated. The purpose of this study is to evaluate the incidence of hallux interphalangeal angle in the normal and hallux valgus feet and also the statistical correlations of HIA with HVA and IMA in the 2 groups.
MATERIALS AND METHODS
The study is base on the standing foot AP radiographs of the 100 normal feet (HVA<12 degrees and IMA<9 degrees) and 100 hallux valgus feet (HVA>25 degrees and IMA>12 degrees). We measured the hallux valgus angle, intermetatarsal angle and hallux interphalangeal angle, where we defined the hallux valgus interphalangeus when the HIA was more than 10 degrees. We evaluated the incidence of the hallux valgus interphalangeus in the normal and hallux valgus groups and the correlations of the HIA with HVA and IMA.
RESULTS
In normal feet group, hallux valgus interphalangeus comprised 82%, while there were only 20% of HVI in hallux valgus group. Among 200 total feet, there was negative correlations between the HVA and HIA as well as IMA and HIA statistically (p<0.01).
CONCLUSION
There was lower incidence of hallux valgus interphalangeus in the hallux valgus group compared to the normal feet group.

Keyword

Hallux valgus interphalangeus; Hallux interphalangeal angle; Hallux valgus angle; Intermetatarsal angle

MeSH Terms

Foot*
Hallux Valgus*
Hallux*
Incidence*
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