Vertebral foramen anteroposterior width: The maximum anteroposterior length of
vertebral canal or foramen vertebrae at the midline (Sengul & Kadioglu, 2006; Gosavi & Vatsalaswamy, 2012).
The spinal cord occupies the
vertebral canal within the vertebral column, which provides support and protection.
Symptoms probably appeared because of progressively narrowing
vertebral canal due to degeneration [16].
A single mineralized 4mm fragment was located within the
vertebral canal at the level of T2-T3 (Figure 2).
X-ray and computed tomography (CT) images demonstrated an L1 vertebral burst fracture without compression of the related
vertebral canal. Magnetic resonance imaging demonstrated a high signal change in the L1 vertebra.
Changes in the number and shape of the vertebrae contribute to the abnormal curvature of the spinal axis and to varying degrees of
vertebral canal stenosis (Falzone, 2011; Moissonnier et al., 2011; Walker, 2002; Westworth and Sturges, 2010) followed by neurological manifestations.
The neurological symptoms were ascribed to the compression of the spinal cord and nerve roots by an expanding mass partly protruding into the
vertebral canal (Figures 1(c) and 1(d)).
The most frequent complications are myelopathy and radiculopathy which occur because of mechanical compression of the
vertebral canal [3, 4] and dysphagia, caused by mechanical compression of the esophagus [5-15].
There was no extension of osseous growth into
vertebral canal and over nearby sacral foramina.
Vertebral canal sagittal diameter was enlarged from an average of 5.7 [+ or -] 1.6 to 15.2 [+ or -] 1.2 mm (P<0.01).
The spine was sectioned sagittally after formalin fixation such that the
vertebral canal and spinal cord could be examined.
On rare occasions, the metastatic tissue invades the
vertebral canal without causing damage to the vertebral bodies (RAMADAN et al., 2012), as was observed in these two cases.
vertebral canal - the canal in successive vertebrae through which the spinal cord passes