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首页> 外文期刊>Spine >Development of trunk asymmetry in a cohort of children ages 11 to 22 years.
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Development of trunk asymmetry in a cohort of children ages 11 to 22 years.

机译：11至22岁儿童群中躯干不对称的发展。

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STUDY DESIGN: A cohort study with a follow-up period of 11 years. OBJECTIVES: To study the growth of the spine with a focus on the development of trunk asymmetry and scoliosis. SUMMARY OF BACKGROUND DATA: Trunk asymmetry, a common phenomenon at adolescence, can be considered the clinical expression of scoliosis. The importance of the pubertal growth spurt has been stressed in the natural history of scoliosis. However, no cohort studies have focused on the ascending and descending phase of the spine's peak growth and the development of trunk asymmetry. METHODS: The cohort consisted of all the fourth-grade school children in the Western school district of Helsinki, Finland, in the spring of 1986. These 1060 children (515 girls and 545 boys), from the average age of 11 to 14 years, were invited to undergo annual examinations. The 855 children (80.7%) who had participated in the study at the age of 14 years were invited to a reexamination at the age of 22 years. This invitation was accepted by 430 (208 women and 222 men; 54%) of those invited. The forward bending test, the spinal pantography, and the anthropometric measurements were carried out by the same author (M.N.) throughout this study. RESULTS: At 22 years of age, 30% of the adults were found to be symmetric, with a hump less than 4 mm in the forward bending test, whereas 51% had a hump of 4 to 9 mm, and 19% had a hump 10 mm or larger (major asymmetry). The directional asymmetry of trunk surface, a skew to the right at the thoracic level and to the left at the lumbar level at puberty, remained constant at adult age. The prevalence of major trunk asymmetry at adult age was the same in both women and men, in contrast to the female predominance at puberty in this cohort. There were close correlations in the degrees of thoracic and lumbar asymmetry between puberty and adult ages. CONCLUSIONS: The shape of the back develops mainly during the pubertal growth spurt at ages 12 to 14 years in girls and boys. Trunk asymmetry (and mild scoliosis) seems as prevalent in young adult women as in men, although at puberty idiopathic scoliosis was twice as prevalent among girls as among boys in this cohort.
机译：研究设计：一项为期11年的随访研究。目的：研究脊柱的生长，重点是躯干不对称和脊柱侧弯的发展。背景数据摘要：躯干不对称是青春期的常见现象，可以认为是脊柱侧弯的临床表现。在脊柱侧弯的自然史中已经强调了青春期生长突增的重要性。但是，没有队列研究集中在脊柱峰值增长的上升和下降阶段以及躯干不对称的发展。方法：该队列由1986年春季在芬兰赫尔辛基西部学区的所有四年级学生组成。这1060名儿童（515名女孩和545名男孩）平均年龄为11至14岁，被邀请参加年度考试。年龄在14岁以下的855名儿童（占80.7％）被邀请参加22岁的复试。这项邀请被430名（208名女性和222名男性; 54％）接受了邀请。在整个研究过程中，同一作者（M.N.）进行了前屈测试，脊柱造影和人体测量。结果：在22岁时，发现30％的成年人是对称的，在向前弯曲测试中驼峰小于4毫米，而51％的驼峰为4至9毫米，而19％的驼峰为10 mm或更大（严重不对称）。躯干表面的方向不对称，在青春期时在胸部水平向右偏斜，在腰部水平向左偏斜，在成年时保持不变。在该年龄组中，男性和女性在成年人中主要躯干不对称的患病率均相同，而在青春期则以女性为主。青春期与成年年龄之间的胸椎和腰椎不对称程度密切相关。结论：背部的形状主要在女孩和男孩的12至14岁青春期生长突增期间发展。躯干不对称（和轻度脊柱侧弯）在成年女性中似乎和男性一样普遍，尽管在青春期，特发性脊柱侧弯在女孩中的发病率是男孩中的两倍。

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