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首页> 美国卫生研究院文献>European Spine Journal >The change in ratio of convex and concave lung volume in adolescent idiopathic scoliosis: a 3D CT scan based cross sectional study of effect of severity of curve on convex and concave lung volumes in 99 cases
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The change in ratio of convex and concave lung volume in adolescent idiopathic scoliosis: a 3D CT scan based cross sectional study of effect of severity of curve on convex and concave lung volumes in 99 cases

机译：青少年特发性脊柱侧凸的凸凹肺容积比的变化：基于3D CT扫描的横断面研究严重程度对凸凹肺容积的影响的99例

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摘要

To study the effect of the degree of scoliosis, degree of hypokyphosis/lordosis and rotation of apical vertebra on individual lung volume (measured with CT scan) in asymptomatic adolescent idiopathic scoliosis (AIS) patients. Individual (right and left) lung volume, angle of kyphosis and rotation of apical vertebra, were measured in 77 asymptomatic AIS patients having right thoracic curve, using modern computed tomography (CT) scan. To compare, lung volumes were measured in 22 normal persons (control group). The ratio of “right to left lung volume (convex to concave side)” was obtained and compared among these groups. With increased Cobb’s angle, ratio of convex to concave lung volume increased. For Cobb’s angle more than 40°, it was increased significantly (P = 0.0042). A significant degree of correlation was found between axial rotation angle of apical vertebra and right to left lung volume ratio (P = 0.0067, r = 0.271). A significant inverse correlation was found between the angle of kyphosis and right to left lung volume ratio, i.e., as the angle of kyphosis decreased the convex to concave lung volume ratio increased (P = 0.0109, r = −0.255). In asymptomatic, AIS patients, with increase in degree of curvature, and rotation of apical vertebra, the ratio of convex to concave side lung volume increases; indicating concave side lung volume is comparatively more affected (decreased) than convex side lung volume. On the other hand with decrease in the angle of kyphosis the convex to concave lung volume ratio increases indicating kyphotic angle has an inverse relation to convex to concave lung volume ratio.
机译：研究无症状的青少年特发性脊柱侧弯（AIS）患者的脊柱侧凸度，后凸畸形/脊柱侧凸度和根尖椎骨旋转对单个肺体积的影响（CT扫描测量）。使用现代计算机断层扫描（CT）扫描对77例无症状的AIS右胸曲线的患者（左，右）的肺体积，后凸角度和顶椎骨旋转进行了测量。为了比较，在22名正常人（对照组）中测量了肺体积。获得“右肺容积与左肺容积（凸与凹侧）之比”并在这些组之间进行比较。随着Cobb角的增加，肺部凸凹容积之比增加。当Cobb角大于40°时，该角度显着增加（P = 0.0042）。发现根尖椎骨的轴向旋转角度与左右肺体积比之间存在显着的相关性（P = 0.0067，r = 0.271）。发现驼背角与右肺向左肺体积比之间存在显着的反相关关系，即随着驼背角减小，凸肺凹肺体积比增加（P = 0.0109，r = -0.255）。在无症状的AIS患者中，随着曲度的增加和根尖椎骨的旋转，凸侧与凹侧肺容积之比增加；表示凹侧肺容积比凸侧肺容积受到的影响更大（减小）。另一方面，随着脊柱后凸角度的减小，凸肺凹面容积比增加，表明后凸角与凸肺凹面容积比成反比。

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