Morphometric Study Of The Pedicles Of Dried Adult Human Lumbar Vertebrae
DR. WANKHEDE HARISH A.DR. JADHAV SHAILENDRA S.DR. HEREKAR NARSINH G.DR. KATTI ANUPAMA S.
Background: Pedicles of the lumbar vertebrae are short and strong. In the
lumbar region the pedicles play an important role in the transfer of
weight from the neural arch to the anterior part of the vertebral column.
Fractures of the lumbar pedicles are common in older age group due to
osteoporosis and requires open surgical or percutaneous pedicle screw
fixation to stabilize the vertebrae. Hence the morphometric knowledge of
the lumbar pedicle is important.
Aims of study: The aim of our study is to determine the height and width
of pedicles and inter-peduncle distance. To compare present study data
with the previous one. To discuss the various applied aspects of the
Methodology: 115 dried adult human lumbar vertebrae (23 sets, 5
vertebrae in each set from same individual) were examined. Height and
width of the right and left lumbar pedicles and interpeduncle distance
was measured using sliding verniar caliper.
Results: Vertical height of the pedicle goes on increasing from L1 to L3
vertebrae and again reduces in L4 and L5, in L5 it is least. Width of the
pedicle goes on increasing from L1 to L5 vertebrae; width is nearly
similar in L2 and L3 vertebrae. Interpeduncle distance is less in L1 and
almost similar in L2, L3, L4 and larger in L5 vertebrae. No statistically
significant difference is seen in height and width of the pedicle on right
and left side.
Conclusion: Morphometric knowledge of the pedicles is important for
orthopedic surgeons and radiologist for proper selection of the pedicle
screw and operative repair.