Radiographic analysis of hallux valgus. A two-dimensional coordinate system

Y. Tanaka*, Y. Takakura, T. Kumai, N. Samoto, S. Tamai

*この研究の対応する著者

研究成果: Article査読

86 被引用数 (Scopus)

抄録

A new method was devised for the evaluation of medial and lateral splaying of the foot on dorsoplantar radiographs made while the patient is bearing weight. This method involves use of a two-dimensional coordinate system; the axis of the shaft of the second metatarsal is the x axis, the intersection of the x axis with the proximal end of the second metatarsal is the point of origin, and the perpendicular to the x axis that passes through the point of origin is the y axis. This method was used to study the radiographs of 177 feet of 112 female patients who had symptomatic hallux valgus and those of ninety-four normal feet of sixty-four female subjects. The site of origin of metatarsus primus yarns in the patients who had hallux valgus was the first metatarsocuneiform joint. The great toe and first metatarsal of the patients who had hallux valgus were longer, on the average, than those of the normal subjects. However, the x coordinates at the tip of the great toe and at the end of the first metatarsal were larger only in the patients who were less than twenty years old, because of the progression of angulation of the great toe and of the first metatarsal in the older patients.

本文言語English
ページ(範囲)205-213
ページ数9
ジャーナルJournal of Bone and Joint Surgery - Series A
77
2
DOI
出版ステータスPublished - 1995
外部発表はい

ASJC Scopus subject areas

  • 外科
  • 整形外科およびスポーツ医学

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