v4.1 Fusion X
Zone 1: lateral to foramina (alar) — low neuro risk. Zone 2: through foramina — higher L5/S1 root risk. Zone 3: medial to foramina (central canal) — highest cauda equina risk.
In the Denis classification of sacral fractures, which zone is associated with the lowest risk of neurological deficit?
Which of the following is the primary neurological deficit associated with Zone II sacral fractures?
What is the primary management for a displaced Zone I sacral fracture?
What is the neurological deficit rate associated with Zone III sacral fractures?
Which neurological structures are most at risk in Zone III sacral fractures?
Which clinical manifestation is most likely associated with a Zone I sacral fracture?
A young adult presents with a sacral fracture following a high-energy trauma. Which zone is most likely affected?
What is the primary clinical concern with Zone II sacral fractures?
Which of the following is a common consequence of a Zone III sacral fracture?
In the context of sacral fractures, what does the term 'insufficiency fracture' most commonly refer to?