Spinal stenosis is attracting increasing attention as an important
structural change with significant radiologic and clinical implications.
Recognition and management of problems inherent in this condition
require clear understanding of the diverse anatomical changes and careful
correlation with a wide spectrum of fluctuating clinical manifestations. The
configuration of the spinal canal is determined by the structures bounding
the successive vertebral foramina. The lateral walls are formed by the
pedicles, the anterior wall is formed by the dorsal surface of the vertebral
body and the posterior longitudinal ligament (Wang and Shih, 1992).
Pathological changes in the diameter of the lumbar spinal canal may be
associated with low back pain.The assessment of the size of the canal is
therefore an important diagnostic procedure (Amonoo Kuofi et al, 1990). |