to be aware of the security in fixing the spine through posterior approach with instrumentation , a study of the regional anatomy of the pedicle was done by measuring various parameters in 51 thoraco-lumbar ( t-9 to l-3 ) specimens , including the thickness , height , and length of pedicle , the angles made by line of the pedicle axis with both the sagittal and longitudinal lines of the same vertebral body , and the distance between pedicles of each vertebra .
C0223084
vertebral body
C0223080
pedicles of