Type of Article: Original Research
Year: 2016 | Volume 4 | Issue 1 | Page No. 2090-2095
Date of Publication: 31-03-2016
DOI: http://dx.doi.org/10.16965/ijar.2016.152
A STUDY OF TRANSMISSION OF WEIGHT THROUGH PEDICLES OF CERVICAL AND UPPER THORACIC REGION IN MAN OF SOUTH KARNATAKA REGION, INDIA
Komala B *1, Samreen Panjakash 2, Rohini S. Kori 1.
*1 Department of Anatomy, BGS Global Institute of Medical Sciences, Bengaluru, Karnataka, India
2 Department of Anatomy, Al Ameen Medical College, Vijayapur, Karnataka, India
Address: Dr. Komala B, Professor and Head, Department of Anatomy, BGS Global Institute of Medical Sciences, Bengaluru, Karnataka, India. Mobile: +91-9844470491
E-Mail: kominag@yahoo.co.in
Abstract
Introduction: The pedicles act as struts and reinforce the vertical system of columns. The pedicle as this is the site where vertebral column fixation surgeries are most frequently implemented.
Objective: This study has been attempted to find out the transmission of weight through pedicles in man of South Karnataka region, India so that this knowledge could be applied to explain some of the clinicopathological conditions of the spine.
Materials and Methods: The 6 cervical and upper 5 thoracic vertebrae of 30 human adult male columns were selected for the study. The various parameters of inferior body surface area, pedicle index, body-pedicle angle and the ratio pedicle index to inferior body surface area were measured for each of the 6 cervical and upper 5 thoracic vertebrae of 30 columns.
Results: The area of the inferior surface of T5 vertebra was more than double that of the body of C2 vertebra. The mean pedicle index was greater at C2, T1, and T2 levels, while it was smaller at the remaining levels. At C2 level, in relation to the body, pedicles were directed backwards, downwards and laterally while, at C4 level, pedicles were almost directed horizontal. From C6 level downwards, pedicles were directed upwards and backwards. Their lateral deviation gradually diminished and at T5, it was directed completely backwards.
Conclusion: The measurements obtained by the present study reveals the importance of pedicle in understanding the mechanics of spinal anatomy and its applications with respect to transmission of weight.
Key words: Pedicle, cervical region, thoracic region, South Karnataka.
References
- Roy-Camiller R, Saillant G, Mazel C. Internal fixation of lumbar spine with pedicle screw plating. Clin Orthopaed Res 1986;203:7-17.
- Williams PL, Bannister LH, Berry MM, Collins P, Dyson M, Dussek JE, et al. Gray's Anatomy in skeletal system. 38th ed. United Kingdom: Churchill Livingstone; 1995. p. 523.
- Pal GP, Routal RV. The role of the vertebral laminae in the stability of the cervical spine. J Anat 1996;188:485-9.
- Pal GP, Routal RV. A study of weight transmission through the cervical and upper thoracic regions of the vertebral column in man. J Anat 1985;148:245-61.
- Olsewski JM, Simmon EH, Kallen FC, Mendel FC, Severin CM, Berens DL. Morphometry of lumbar spine, Anatomical perspectives related to transpedicular screw fixation. J bone joint Surg 1990;72: 541-9.
- Berry JL, Moran JM, Berg WS, Steffee AD. A morphometric study of human lumbar and selected thoracic vertebrae Spine 1987; 12, 362-367.
- Krag MH, Weaver DL, Beynnon BD, Haugh LD. Morphometry of thoracic and lumbar spine related to transpedicular screw placement for surgical spinal fixation. Spine 1988;13:27-32.
- Scoles PV, Linton AE, Latmimer B, Levy ME, Diglovanni BF. Vertebral body and posterior element morphology: The normal spine in middle life. Spine 1988;13:1082-6.
- Amonoo-Kuofi HS. Age related variations in the horizontal and vertical diameters of the pedicles of lumbar spine. J Anat 1995;186,321-8.
- Krogman WM. Race differences in human skeleton. In: The human skeleton in Forensic Medicine. 3rd ed. USA: Charles C. Thomas publishers; 1978.
- Weinsten JN, Rydevik BL, Rauschning W. Anatomic and Technical considerations of pedicle screw fixation. Clin Orthopaed Res 1986;248:34-46.
- Davis PR. The medial inclination of the human thoracic intervertebral articular facets. J Anat 1959;93(1):68-74.
- Singel TC, Patel MM, Gohil DV. A study of width and height of lumbar pedicles in Saurashtra region. J Anat Soc India 2004;53 (1)4-9.
- Denis F. The three column spine and its significance in the classification of acute thoracolumbar spinal injuries. Spine 1983;8(8):817-31.
- Louis R. Spinal stability as defined by three-column spine concept. Anatomia clinica 1985;7:33-42.
- Pal GP, Cosio L, Routal RV. Trajectory architecture of the trabecular bone between the body and the neural arch in human vertebrae. Anat Rec 1988;222(4):418-25.
- Maheshwari J. Essential Orthopaedics. 3rd ed. Kolkata: Sounder’s company; 1985.p.143.
- Komala B. A study of relative magnitude of compressive forces passing through the cervical and upper thoracic vertebrae in man. Int J Anat Res 2016;4(1):[accepted].
- Pal GP, Routal RV. Transmission of weight through lower thoracic and lumbar regions of the vertebral column in man. J Anat 1986;152:93-105.
Komala B, Samreen Panjakash, Rohini S. Kori. A STUDY OF TRANSMISSION OF WEIGHT THROUGH PEDICLES OF CERVICAL AND UPPER THORACIC REGION IN MAN OF SOUTH KARNATAKA REGION, INDIA. Int J Anat Res 2016;4(1):2090-2095. DOI: 10.16965/ijar.2016.152