BACKGROUND Spinal cord injury without radiographic abnormality (SCIWORA) is defined as having "clinical symptoms of traumatic myelopathy with no radiographic or computed tomographic features of spinal fracture or instability". The mechanism of pediatric SCIWORA following minor trauma is still unclear. Tight filum terminale (TFT) has been studied in the literature, but the information regarding the predisposing factor for SCIWORA is still being defined. CASE PRESENTATION We report three cases of thoracic and lumber SCIWORA with TFT. The trauma was potentially mild in all cases but resulted in catastrophic damage of the cord. All patients had no signs or symptoms of tethered cord syndrome prior to the minor trauma. TFT was found during operation. CONCLUSIONS We suggest that TFT might be a predisposing factor for SCIWORA and chronic spinal cord traction play an important role in the mechanism of pediatric thoracic and lumber SCIWORA following minor trauma. Patients who never undergo treatment for TFT likely have an elevated risk of developing SCIWORA following minor trauma.

中文翻译：

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轻度创伤后小尾部紧密的小儿患者的真正脊髓损伤，无放射学异常：一例病例报告。

背景技术没有放射线照相异常的脊髓损伤（SCIWORA）被定义为具有“创伤性脊髓病的临床症状，没有放射线照相或计算机断层扫描的脊柱骨折或不稳定的特征”。轻度创伤后的儿科SCIWORA的机制仍不清楚。文献中已经研究了紧致的终端细胞（TFT），但是仍在定义有关SCIWORA诱发因素的信息。病例介绍我们报告了3例带有TFT的胸椎和木材SCIWORA病例。在所有情况下，创伤都可能是轻度的，但会导致绳索的灾难性损坏。在轻度创伤之前，所有患者均无系绳综合征的体征或症状。在运行过程中发现了TFT。结论我们认为TFT可能是SCIWORA的诱发因素，慢性脊髓牵引在小创伤后小儿胸和木材SCIWORA的机制中起着重要作用。从未接受过TFT治疗的患者受轻伤后患SCIWORA的风险可能会升高。