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.

Abstract: 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 study. 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.

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