Orthopaedic and Traumatologic Department, 3rd Faculty of Medicine, Faculty Hospital FNKV, Charles University, Šrobárova 50, 10034 Prague, Czech Republic.
Eur Spine J. 2011 Jul;20 Suppl 2(Suppl 2):S166-71. doi: 10.1007/s00586-010-1472-0. Epub 2010 Jun 13.
The description of the unusual mechanism of the trauma to lumbosacral junction is given based on the analysis of the clinical case. The injury of a patient with unilateral dislocation at the L5-S1 intervertebral joint without a bone lesion in this segment is reported. The patient suffered the injury by falling on one side from a height of 8 m. The trauma mechanism is documented by MRI findings and a 3D CT reconstruction of the paravertebral muscles and soft tissues on the injured side, whilst showing intact structures on the contralateral side. This, together with the cause of injury (a fall on the side), provides evidence for forced lateral flexion-distraction being the major vector of the trauma event. Such mechanism of this injury was not taken in account by other authors yet. This type of injury is difficult to classify using the Magerl classification system. The very rare injury has been mentioned in the literature only occasionally.
根据临床案例分析，给出腰骶关节创伤不寻常机制的描述。报告了一例患者 L5-S1 椎间关节单侧脱位而该节段无骨损伤的损伤。患者从 8 米高处向一侧坠落受伤。MRI 检查结果和患侧椎旁肌肉和软组织的 3D CT 重建记录了创伤机制，而对侧结构完整。这连同受伤原因（向一侧坠落）一起，证明了强制侧向屈伸是创伤事件的主要向量。其他作者尚未考虑到这种损伤的机制。这种类型的损伤使用 Magerl 分类系统进行分类很困难。这种非常罕见的损伤仅偶尔在文献中提到过。
