Characteristics of Fresh Lumbar Spondylolysis Occurring below the Age of 9 Years.

IF 1.5 Q2 MEDICINE, GENERAL & INTERNAL JMA journal Pub Date : 2024-10-15 Epub Date: 2024-08-09 DOI:10.31662/jmaj.2024-0039
Ryo Himi, Tetsuya Ishikawa, Takaya Sugiyama, Kazuma Watanabe
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Abstract

Introduction: This study aimed to compare two groups (9 years or younger [U-9] and 10 years or older [O-10]) of patients with fresh lumbar spondylolysis and elucidate their characteristics.

Methods: This study enrolled 51 elementary school students diagnosed with fresh lumbar spondylolysis through magnetic resonance imaging between March 2015 and March 2022. Study 1 included 10 and 46 patients in the early- and late-grade groups, respectively. Patient characteristics at disease onset (sex, presence or absence of spina bifida occulta [SBO] in the affected vertebra, vertebral level, unilaterality or bilaterality of lesions, presence of a contralateral terminal stage, and disease stage) were compared between the two groups. Meanwhile, Study 2 included 34 patients with confirmed successful or failed bone union. The bone union rates in both groups were compared, and the factors affecting bone union in the entire study cohort were examined.

Results: In Study 1, the proportions of SBO, bilateral, and advanced stage cases were significantly higher in the U-9 group than in the O-10 group. In Study 2, the bone union rate was significantly lower in the U-9 group than in the O-10 group.

Conclusions: The proportions of SBO, bilateral, and advanced stage cases were significantly higher in the U-9 group than in the O-10 group. The bone union rate was significantly lower in the U-9 group than in the O-10 group.

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9 岁以下新发腰椎间盘突出症的特征
简介:本研究旨在比较两组(9岁或以下[U-9]和10岁或以上[O-10])新鲜腰椎间盘突出症患者,并阐明其特征:本研究旨在比较两组(9岁或以下[U-9]和10岁或以上[O-10])新鲜腰椎骨质增生患者,并阐明其特征:本研究选取了2015年3月至2022年3月期间通过磁共振成像确诊为新鲜腰椎骨质增生的51名小学生。研究1包括早期组和晚期组,分别有10名和46名患者。比较了两组患者发病时的特征(性别、受累椎体是否存在隐性脊柱裂[SBO]、椎体水平、病变的单侧性或双侧性、是否存在对侧终末期以及疾病分期)。同时,研究 2 纳入了 34 例证实骨结合成功或失败的患者。比较了两组患者的骨结合率,并研究了影响整个研究队列骨结合的因素:结果:在研究1中,U-9组的SBO、双侧和晚期病例比例明显高于O-10组。在研究 2 中,U-9 组的骨结合率明显低于 O-10 组:结论:U-9 组的 SBO、双侧和晚期病例比例明显高于 O-10 组。U-9组的骨结合率明显低于O-10组。
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