THE REPRODUCIBILITY OF NATURAL HEAD POSTURE - A METHODOLOGICAL STUDY
THE REPRODUCIBILITY OF NATURAL HEAD POSTURE - A METHODOLOGICAL STUDY
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DOI：
10.1016/0889-5406(88)90157-6
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发表时间：
1988-04-01
影响因子：
3
通讯作者：
WEI, SHY
中科院分区：
文献类型：
--
作者：
COOKE, MS;ORTH, D;WEI, SHY
目前临床对自然头位(NHP)的兴趣来源于将NHP与颅面形态、未来生长趋势和呼吸需求相关的研究。也有人认为，NHP是头面部分析和插图出版的合理参考和定位位置。个人或群体是以他们在生活中自然出现的方式呈现的。因此，在NHP中常规记录的头颅侧位X线片对临床医生更有意义。所有这些潜在的临床益处的基础是NHP的临床重复性这个尚未完全回答的问题。在这项研究中，定义了一种自然的头部姿势，即直立姿势，并将其标准化用于临床。评估了耳柱、眼球参考的外部来源(墙镜)、性别和时间与在这种自然头位下记录侧位头影测量照片的可重复性的关系。样本包括217名随机抽取的在香港的12岁中国儿童。男孩从自我平衡位置转换到镜眼参考位置时抬头更多(平均变化2度，P<0.01)。0.001)。没有检测到其他显著的男性和女性差异。有镜片的NHP重复性较好(有镜片的方法误差为1.9度，无镜片的方法误差为2.7度)。在带耳柱和不带耳柱的NHP记录之间没有检测到显著的重复性差异。然而，如果没有耳柱，X光片的质量往往很差。用耳柱和镜子(4~10分钟和1~2小时后)记录的同日重复摄片的重复性为1.9度。NHP在3-6个月后的重复性仅略有下降(方法误差=2.4度)。
Current clinical interest in natural head posture (NHP) derives from studies correlating NHP to craniofacial morphology, future growth trends, and to respiratory needs. It has also been argued that NHP is the logical reference and orientation position for craniofacial analysis and the publication of illustrations. The individual or group is presented as they naturally appear in life. hence, lateral cephalometric radiographs recorded routinely in NHP would be more meaningful for the clinician. Underpinning all these potential clinical benefits is the incompletely answered question of the clinical reproducibility of NHP. In this study a natural head posture, the orthoposition, was defined and standardized for clinical use. The effects of ear posts, an external source of eye reference (a wall mirror), sex and time were evaluated in relation to the reproducibility of recording lateral cephalometric radiographs in this natural head posture. The sample comprised 217 randomly selected 12-year-old Chinese children in Hong Kong. Boys looked up more when changing from the self-balance position to the mirror eye reference position (mean change 2.degree., P .ltoreq. 0.001). No other significant male-versus-female differences were detected. NHP reproducibility was better with a mirror (with mirror, method error = 1.9.degree., without mirror, method error = 2.7.degree.). No significant differences in reproducibility were detected between NHP recordings taken with and without ear posts. However, without ear posts the radiographs tended to be of poor quality. The reproducibility of same-day repeat radiographs recorded with ear posts and with a mirror (after 4 to 10 minutes and 1 to 2 hours) was 1.9.degree.. NHP was only slightly less reproducible 3 to 6 months later (method error = 2.4.degree.).