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01121 Journal of Nara Medical Association >
Vol.59 No.3-4 >
このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10564/578
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タイトル: | 荷重時背底X線像における母趾基節骨回内評価法の考案 |
その他のタイトル: | NEW RADIOGRAPHIC EVALUATION OF HALLUCAL ROTATION IN HALLUX VALGUS |
著者: | 阪本, 達哉 田中, 康仁![](/dspace/image/metalink/link_ja.gif) 秋山, 晃一 片岡, 弘行 河口, 泰之 高倉, 義典 東野, 義之 |
キーワード: | hallucal rotaion radiographic analysis hallux valgus dorsoplantar radiograph |
発行日: | 2008年8月31日 |
出版者: | 奈良医学会 奈良県立医科大学 |
引用: | Journal of Nara Medical Association Vol.59 No.3-4 p.105-111 |
抄録: | The purpose of this study was to establish a new method for quantifying
the amount of hallucal rotation on weight-bearing dorsoplantar radiographs and to
explore the relationships between hallucal rotation and hallux valgus deformity.
Methods: Anatomical features that enable assessment of the first proximal phalanx
rotation were identified at the medial tubercle of its proximal articular surface. A
Rotation Index (A/B x 100% : RI) was defined as the distance between the tip of the
medial tubercle and the long axis (A), and the distance between the most medial and
lateral edges of the proximal articular surface (B). The data were analyzed using a single
regression analysis to investigate the relation between the value of the RI and the first
proximal phalanx rotation (PRA). Using this single regression equation, the value of PRA
was calculated from the RI on each dorsoplantar radiograph. Measurements were made of
78 feet of 48 female patients with symptomatic hallux valgus. As a control, 58 normal feet
of 46 female subjects were also examined. A Pearson correlation coefficient was used to
evaluate the relationship between the PRA and the hallux valgus angle (HVA).
Results: A trend of decreasing RI with increasing pronation was observed, and the
relationship was approximately linear. At a pronation of 10 degrees, an average change in
the magnitude of the RI of 6.06% was observed. The mean value of the first proximal
phalanx rotation angle was 8.5°in the control group and 27.7°in the hallux valgus group.
We found that there was a high correlation between the amount of the first proximal
phalanx rotation angle and the hallux valgus angle. The regression coefficient was 0.68.
Conclusions: We conclude that the RI is reliable and usefu1 for accurately assessing the
hallucal rotation under the weightbearing condition |
URI: | http://hdl.handle.net/10564/578 |
ISSN: | 13450069 |
出現コレクション: | Vol.59 No.3-4
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