Morphometric Study of Typical Cervical Vertebrae in Population of Bihar & its Clinical Implication (original) (raw)
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Italian journal of anatomy and embryology, 2017
Knowledge about the dimensions of the vertebral elements is necessary for the development of instrumentation related to cervical spine. Ethnic variations have been reported in these dimensions. This study included 350 dry cervical vertebras (C3-C7) of unknown age and sex, collected from the department of Anatomy, Mahathma Gandhi Medical College and Research Institute, Puducherry and other medical colleges in and around Puducherry. The dimensions of vertebral bodies, pedicles, laminae, spinous process, superior and inferior articular processes were measured and compared. No significant difference was noted between the measurements taken on the right and left side. The dimensions of the vertebral bodies were seen to be larger at lower levels. The larger dimensions of the pedicle were seen in C3 and thereafter decreased at lower levels. Height and length of lamina progressively increased from C3 to C7. The spinous process length was greatest at C7. The height of pedicle, superior and inferior articular processes decreased towards the lower cervical level.
2022
Cervical vertebrae owing to their small size and complex anatomy pose a serious challenge for instrumentation during surgery and increase the risk of injury to the adjacent neurovascular structures. The aim of the study is to evaluate the linear measurements of the body, pedicle and foramen transversarium of C1 to C7 vertebrae and to correlate the data clinically. Methods: cervical vertebral morphometry will help to reduce the complications and improve the outcome of cervical spine surgeries.
Morphometric study of cervical spine vertebrae in eastern region Nepalese population
Health Renaissance, 2014
Objective: To ascertain the normal values of mid-sagittal vertebral body Diameter, mid-sagittal canal diameter and canal-body ratio in adult Nepalese population. Methods: In this consent based descriptive, clinico -radiological study of 100 individuals who volunteered to being subjected to lateral projection radiographs of cervical spine. The sagittal canal diameter (CD), sagittal vertebral body diameter (VBD) and the canal-body ratio (CBR) was recorded on lateral projection radiographs (film to tube distance at 183 cms) and analyzed statistically. Results: The mean vertebral body diameter was 17.81±1.73mm (male:18.30±1.64mm;female:17.05±1.61mm), mean canal diameter was 17.18±1.67mm (males:17.31±1.74mm; females: 16.97±1.56mm),the mean canal body ratio was 0.97±0.13 (males:0.95±0.13; females:1.00±0.13). In mongoloids mean body diameter is 18.23±1.58 mm, mean canal diameter is 16.87±1.77 mm. and mean canal body ratio is 0.93±0.13. In non-mongoloids the mean body diameter was 17.48±1.7...
Morphometric Analysis of Cervical Spine Pedicles in an Indian Population
The Journal of Spinal Surgery
Introduction: The quantitative understanding of cervical pedicle morphology minimizes the injury to the neurovascular structure and improves the surgical outcome. The aim of this study was to investigate the morphometry of the cervical pedicle using computed tomography (CT) scans. Materials and methods: The CT scan was performed in eleven cervical spine injury patients and the axial and sagittal images were used to calculate the four linear parameters-outer pedicle width (OPW), inner pedicle width (IPW), pedicle height (PH), pedicle axis length (PAL), and the pedicle transverse angle (PTA). Results: A total of 110 pedicles were measured and studied. The mean OPW, IPW, and PH showed gradual increase of the value from C3 to C7. The PTA showed maximum value at C4 vertebra and minimum value at C7 vertebra. Conclusion: The study demonstrated that pedicle dimensions were small in comparison to European and other Asian populations. To enhance the safety of cervical pedicle screw insertion, the pedicle dimensions and trajectories should be determined individually. The screw diameter should also be optimal to avoid pedicle violations because of narrow OPW in our study population.
Cervical vertebrae of South Indian population
International Journal of Health Sciences (IJHS), 2022
Cervical vertebrae owing to their small size and complex anatomy pose a serious challenge for instrumentation during surgery and increase the risk of injury to the adjacent neurovascular structures. The aim of the study is to evaluate the linear measurements of the body, pedicle and foramen transversarium of C1 to C7 vertebrae and to correlate the data clinically. Methods:
https://www.ijrrjournal.com/IJRR\_Vol.6\_Issue.7\_July2019/Abstract\_IJRR005.html, 2019
Background-In morphology variations are very common. The developmental malformations, previous surgery, trauma and infection may further distort normal anatomy. We were surprised at the small volume of published information about vertebral morphology, Hence the present study was conducted in the western region of Rajasthan to get a glimpse over the range of canal-body ratio in lumbar spinal canal in adult Rajasthan population. Objectives-To evaluate the transverse diameter of lumbar spinal canal ,transverse diameter of vertebral bodies and estimating canal-body ratio in lumbar vertebral column in both sexes in western Rajasthan. Materials &Methods-The present descriptive type study was conducted in the Department of Anatomy and Neurosurgery of S.M.S. Medical College, Jaipur, (Rajasthan). Antero-posterior plain radiographs of lumbar spine in 1000 subjects were used for the study. All measurements were made by using electronic digital vernier caliper. Student T test was used for analysis. Results-Mean transverse diameter of lumbar vertebral canal and transverse diameter of vertebral bodies were showing a cranio-caudal increase from vertebrae L1 to L5. Conclusion-The canal body was found constant for each vertebral level. Dimensions of male populations are significantly higher with respect to the female population. The large sample size of the study provides a fair idea to the clinician about the ranges o f I.P.D, transverse diameter of vertebral body and canal-body ratio in western Rajasthan population.
A morphometric study of adult human atlas vertebrae in South Gujarat population, India
The anatomy of the atlas (first cervical vertebrae, C1) exhibits complex, three-dimensional structures, showing extensive variability in morphology from other cervical vertebrae. 1 It is located at critical point close to the vital centers of the medulla oblongata which can get compressed by a dislocation of the atlanto axial complex or instability of the atlanto axial joint. 2 The atlas holds the globe of the skull and is devoid of body and spine. It has two lateral masses links by an anterior and posterior arch. Each lateral mass has superior and inferior articular facets. 1 The VAG (vertebral artery groove) is situated on the superior surface of posterior arch behind the lateral mass lodging the third part of vertebral artery. It shows transverse foramen for the vertebral artery. Dislocation of ABSTRACT Background: The atlas (C1) has undergone many structural modification and located at critical point close to the vital centres of the medulla oblongata which can get compressed by a dislocation of the atlanto axial complex or instability of the atlanto axial joint. Knowing of various dimensions of atlas vertebrae are very important for the development of instrumentation related to atlas vertebrae. Methods: In this study, total 100 dried, unbroken atlas vertebrae of unknown age and sex were evaluated in department of anatomy of medical colleges of South Gujarat. All dimensions were measured in bilateral manner using Digital Vernier Callipers with 0.01mm resolution. Results: The mean width of atlas was 71.19 mm. The mean distance between lateral margins of both transverse foramina was 55.48 mm and the inner distance was 44.77 mm. The mean for anteroposterior diameter of vertebral canal of atlas was 28.16mm and transverse diameter was 26.63 mm. The height of anterior arch was 10.21 mm and posterior arch was 8.68mm. The mean for height of facet for dens was 8.96mm and width was 9.18 mm. The mean of anteroposterior diameter of right and left superior articular facet was 20.73 mm and 20.86 mm and transverse diameter was 11.34mm and 11.39mm. The mean of anteroposterior diameter of right and left inferior articular facet was 17.89mm and 17.77mm and transverse diameter was 14.97mm and 15 mm. The mean thickness of vertebral artery groove (VAG) for right and left side was 4.15mm and 3.99mm and width was 8.26 and 8.1 mm. The length of VAG-inner edge (D1) for right and left side was 10.34mm and 10.3mm and length for outer edge (D2) was 14.93mm and 15.1mm. Conclusions: The observations of present study helps in improving understanding of various bony dimensions which could facilitate diagnosis and preoperative planning while operating close to important structures like nerve roots and the vertebral artery and will allow for more accurate modelling of South Gujarat, India.
Anthropometric Study of Cervical Spine in Adult Nepalese
The Journal of Spinal Surgery, 2017
Introduction: Anterior cervical discectomy with fusion (ACDF) and cervical corpectomies are commonly performed procedures in the neurosurgery and orthopedic units across the world. The size of the graft or prosthesis used is variable on individual basis. Also, geographical variations seem to play one of the vital roles in determining the size of the cervical vertebral body and intervertebral disk dimensions. Objective: To study dimension of C3 to C7 vertebral body and C2/3 to C7/T1 intervertebral disk. Inclusion criteria: Nepalese nationality aged between 18 to 60 year old and those with normal cervical spine Magnetic resonance imaging. Exclusion criteria: Traumatic cervical spine and any pathological lesion, such as infection/tumor, destructing the normal morphology of cervical vertebra.
International Journal of Anatomy and Research, 2016
Knowledge on the dimensions of morphological features of typical cervical vertebrae is of importance to improve the surgical outcome while performing cervical pedicle screw insertion, cervical laminectomy, hook plating, lateral mass screw fixation, inter spinous wiring and the cervical transpedicular screw fixation. The aim of the present study on the morphometric analysis of the typical cervical vertebrae (C3-C6) is to provide knowledge for the surgeons to improve the surgical techniques and to minimize the post operative complications. Materials and Methods: The present study consisting of 50 dry typical cervical vertebrae. Height, transverse diameter, antero-posterior diameter of vertebral bodies, height and length of laminae, length and width of pedicles, length of spine, length and width of superior and inferior articular facets were measured using digital Vernier caliper with 0.01mm precision. Results: The mean and standard deviations of height, transverse diameter, antero-posterior diameter of vertebral bodies were 12.31±1.58 mm, 21.49±2.13 mm and 15.69±1.42 mm respectively. The mean & SD of the height and length of laminae were 10.60±1.21 mm and 15.13±1.38 mm respectively. The mean & SD of length and width of pedicles were 5.62±1.53 mm and 4.64±0.72 mm respectively. The mean & SD of length of spines were 16.23±2.23mm. The mean & SD of length and width of superior and inferior articular facets were 12.75±2.47mm, 9.69±1.54 mm, 13.55±2.16 mm and 6.37±0.82 mm respectively. The mean antero-posterior diameter of bodies was measured on superior and inferior surfaces and it was found that the mean antero-posterior diameters on inferior surface of bodies were higher than superior surface. Student t test was performed between the right and left sides of all the parameters and found bilateral symmetry. Conclusion: The knowledge on the morphometric dimensions of the typical cervical vertebrae (C3-C6) provides essential guidance to the surgeons to improve the surgical techniques which can minimize the intra operative and/or post operative complications.
A study of metric measurement of lumbar vertebrae in the population of central India.
The need for a quantitative data base for geometrical and mechanical models of the vertebral column is expressed often by researchers and practitioners, but no comprehensive anthropometric survey for spinal segment modeling has been published. The purpose of this paper is to present a set of anthropometric measurements on dried cadaveric lumbar vertebrae. This includes statistical analysis for distributions of the various dimensions, relations and correlations of vertebral dimensions. The Present study was conducted on 210 adult lumbar vertebrae in department of Anatomy, R.D. Gardi Medical College, Ujjain, India. The Height, length, width of vertebral body, of lumbar vertebrae were measured with the help of Sliding Vernier Caliper. There was a gradual increase in the transverse diameter of the body of vertebra from L 1-L 5. There was also a- increase in the antero- posterior diameter from L 1 to L5.