IJAR.2018.414
Type of Article: Original Research
Volume 7; Issue 1.1 (January 2019)
Page No.: 6089-6101
DOI: https://dx.doi.org/10.16965/ijar.2018.414
THORACIC PEDICLE MORPHOMETRY STUDY ON CADAVER AND CT SCAN WITH ITS CLINICAL APPLICATIONS
Ashwini Shetty *1, R.Avadhani 1, Mahesha K.B 2, Yashodhar Bhandary 3.
*1 Department of Anatomy, Yenepoya Medical College, Yenepoya University 575018, Karnataka, India.
2 Department of Orthopedics, Yenepoya Medical College, Yenepoya University Mangalore, 575018, Karnataka, India.
3 Yenepoya Research center, Yenepoya University Mangalore, 575018, Karnataka, India.
Correspondence author: Dr. Ashwini Shetty, Department of Anatomy, Yenepoya Medical College, Yenepoya University 575018, Karnataka, India.
E-Mail: drashwinishetty11@yahoo.com
ABSTRACT:
Background: Morphometric measurements of a spine in the particular geographical area will help in proper implant selection during spinal surgeries, designing of best suited implant, understanding the biomechanics and pathoanatomy of the spine, precise clinical diagnosis and management of the population under consideration.
Methods: In this study sample size was 100 [58 male and 42 female] embalmed and preserved thoracic spine [T1 to T12] aged 35 to 80 years at the time of death. Chord length [CL]: Measured from the posterior cortical entry point of the pedicle to the anterior vertebral cortex along the axis of the pedicle. All the linear measurements like Vertical interpedicular distance [VIPD], Transverse interpedicular distance [TIPD], Sagital angle [SA] measured using digital vernier calipers with resolution [0.01mm].
Result: In pedicle width however there was no significance difference [p > 0.05] between direct measurement and CT measurement in T1, T2 and T10 and other vertebral level there was significance difference [p < 0.05] between DM and CT. Pedicle Hight of the thoracic spine showed no significant difference [p > 0.05] between the direct measurement and the CT measurement in T3 and T8, but in other vertebral level there is significant difference [p < 0.05] between direct measurement and CT. A significant difference [p < 0.05] between direct measurement and CT measurement sagital angle values in all the vertebral levels was observed.
Conclusion: Pedicle morphometry shows significant correlations in different parameters in most of the vertebral levels in direct measurement and in CT measurements. Also the multiple linear regressions was performed to obtain prediction equation taking direct measurement as dependant variable and CT scan measurements, age and gender as independent variables. The results of the present study can help in designing implants and instrumentations, understanding spine pathologies; and management of spinal disorder in this ethnic group.
Key words: Pedicle, Morphometry, Thoracic Vertebrae.
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