並列タイトル等Three-dimensional Assessment of Femoral Head Coverage in Normal and Dysplastic Hips : A Novel Method
健常者と臼蓋形成不全における骨頭被覆の3次元的評価 : 新しい方法
一般注記The acetabular coverage of the femoral head has been assessed in two-dimensions as the projected covered area or the covered angle on plain radiographs. We present a novel method of the three-dimensional assessment of femoral head coverage obtained by evaluatmg the covered volume of the femoral head in both normal and dysplastic hips. We also assessed the covered angles on the vertical slices passing through the center of the femoral head. The mean covered volume of the femoral head was 57.4% in normal hips and 26.6% in dysplastic hips. In dysplastic hips, the L-CE, A-CE, and P-CE angles were 7.7°, 21.8°, and 95.8°, respectively, while the acetabular angle was 27.5°. In normal hips, the CE angles were 34.0°, 56.8°, and 109.4°, respectively, while the acetabular angle was 7.2°. Our study suggests the usefulness of a novel 3D assessment for acetabular coverage of the femoral head. This assessment provided the precise 3D information necessary to diagnose hip dysplasia and assess the deficiency of acetabular coverage in these patients. Moreover, we may detect a cut-off between normal and dysplastic hips in the 3D assessment by assessing a large number of dysplastic hips both morphologically and using the new assessment.
学位の種類: 博士（医学）. 報告番号: 甲第3944号. 学位記番号: 新大院博（医）甲第611号.学位授与年月日: 平成26年9月22日
Acta Medica Okayama. 2014, 68(5), 277-284.
新大院博（医）甲第611号
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受理日（W3CDTF）2015-02-03T05:25:05+09:00
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