Type of Article:  Original Research

Volume 5; Issue 4.3 (December 2017)

Page No.: 4654-4659

DOI: https://dx.doi.org/10.16965/ijar.2017.428


Yallawa S Kamble *1,  Pramod R. Kulkarni 2,  Uttama U Joshi 3.

*1Tutor in anatomy Bharati Vidyapeeth Deemed University Medical College and Hospital Sangli,  Maharashtra, India.

2Professor and Head Department of Anatomy, Dr. V. M. Government Medical College, Solapur. Maharashtra, India.

3Associate Professor, Department of Anatomy, Bharati Vidyapeeth Deemed University Medical College and Hospital Sangli. Maharashtra, India.

Address for correspondence: Ms. Yallawa S. Kamble, Department of Anatomy, Bharati Vidyapeeth Deemed University Medical College and Hospital Sangli, 416416, Maharashtra, India. Contact Number: +919604832758 E-Mail: yogitakamble684@gmail.com


Introduction: Pedicle is strongest part of lumbar vertebra. The fixation of lumbar spine is needed for various spinal problems. The transpedicular screw fixation of lumbar spine is developed as a very successful method of spinal fixation. Morphometric data on the parameters of the pedicles is therefore useful in preoperative planning and designing of pedicle screws and other implantable devices. Identification of sex of an individual from the remains of skeleton has great medico legal significance.

Aims and Objectives: To measure the height, thickness and length of lumbar pedicles in dry bones and find out sexual dimorphism in Maharashtra region.

Materials and Method: 70 sets of known sex (35 male and 35 female) of lumbar vertebrae from L1 to L5 were obtained from Department of Anatomy of various Medical Colleges of Maharashtra region. The height, thickness and length of lumbar pedicles were measured by using digital vernier caliper. The data was statistically evaluated and seen for sexual dimorphism.

Observations and Results: The height and length of pedicle increased from L1 to L3 and decreased up to L5 levels on right and left side in both sexes. The thickness of pedicle increased from L1 to L5 levels on both right and left side and in both sexes.  Height (right side L1 to L4 and on left side at all vertebral levels) and Thickness of lumbar pedicle (L1 to L3 on right side and L1, L2, L3 and L5 on left side) exhibited sexual dimorphic features in lumbar vertebrae. However, statistically significant difference was not observed in the length of pedicle.

Conclusion:  The present study confirmed that there are regional as well as racial variations in the parameters of lumbar pedicles. This necessitates the study of particular geographic area and population to find out the range of normal values for that particular population and thus can be helpful for instrumentation. Height & thickness of pedicle showed sexual dimorphic features particularly in L1 to L3 levels, which can be considered for sex determination. Present study can be useful in designing pedicle screw and also be helpful for anthropometric studies and forensic investigations.

Key words: Lumbar pedicle, Screw fixation, Sexual dimorphism, Maharashtra region.


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Cite this article: Yallawa S Kamble, Pramod R. Kulkarni, Uttama U Joshi. MORPHOMETRY AND SEXUAL DIMORPHISM OF LUMBAR PEDICLES IN DRY BONES OF MAHARASHTRA REGION. Int J Anat Res 2017;5(4.3):4654-4659. DOI: 10.16965/ijar.2017.428