自从Quesada等、Scher首例报道损伤会导致椎弓根间距变宽以来,脊柱前后位片所示椎弓根间距成为检测脊椎损伤的重要特征。因椎孔由骨环包围而成,必须至少有两处骨折才会有椎弓根间距变宽。在多数病例,由于一处骨折经由纵向通过椎体后壁,而另一处经过由椎弓和椎板所形成骨环的后部分,骨环骨折很难在X线平片中显出,尤其胸椎如此。因此椎弓根间距对诊断疑有脊柱损伤的创伤病员颇有 Since Quesada et al., Scher’s first report of an injury that causes an increase in pedicle spacing, the pedicle spacing shown in the anterior and posterior spines of the spine is an important feature in detecting spinal injury. Due to the vertebral bone surrounded by a ring, there must be at least two fractures will have wider pedicle spacing. In most cases, fractures of the bone ring are difficult to visualize in plain radiographs because one fracture passes longitudinally through the posterior wall of the vertebral body and the other passes through the posterior portion of the bone ring formed by the vertebral arch and lamina. In particular, Thoracic so. Therefore, the pedicle spacing for the diagnosis of suspected spinal injury traumatic patients rather