Study of pedicles and spinal canal diameters at the level of lumbar vertebral in normal adult Saudi population using computed tomography

The values of normal transverse (interpedicular) and sagittal (midsagittal) diameters are different at various levels of lumbar spinal canal in individuals of the same race and differ at identical levels in individuals of various races. The aim of the study was to determine normal reference range of the lumbar spinal canal dimensions and to evaluate lumbar pedicle dimensions with respect to spinal level, age, gender in Saudi population by using Computed Tomography. This study was conducted in Najran province (K.S.A), archival abdominal CT scan images from PACS in hospitals were used. The data of this study was collected from 210 (102 male and 108 female) normal Saudi adults individuals with different ages, gender over a period of 20 months (2019 - 2021). The mean spinal canal transverse distance (SCTR) showed steady decrease from L1 to L4, as there was an increasing in (SCTR) at L5 relative to L4, The mean spinal canal anteroposterior diameter (SCAP) showed a decrease from L1 to L3, and then a gradual increase from L4 to L5 (Fig.4-10). This pattern was observed in males only as there was an increase of female (SCAP) at L2 and L5, and no significant gender difference was noted at any lumbar level for (SCAP) The mean pedicle width (PW) showed steady increase from L1 to L5. While the mean pedicle height (PH) showed a gradual decrease from L1 to L5. The study conclude that Computed tomography is a reliable method for determining the morphological measurements of the spinal canal and pedicles diameter.

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Computed tomography of the postoperative intervertebral disc and lumbar spinal canal

Neurosurgery ◽

10.1097/00006123-198806010-00007 ◽

1988 ◽

Vol 22 (6 Pt 1) ◽

pp. 1014???22 ◽

Cited By ~ 1

Author(s):

S Montaldi ◽

H Fankhauser ◽

P Schnyder ◽

N de Tribolet

Keyword(s):

Computed Tomography ◽

Intervertebral Disc ◽

Spinal Canal ◽

Lumbar Spinal Canal ◽

Lumbar Spinal

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Lumbar spinal canal morphometry from computed tomography scans: reproducibility, results and clinical implications

European Spine Journal ◽

10.1007/bf00302140 ◽

1992 ◽

Vol 1 (1) ◽

pp. 32-37 ◽

Cited By ~ 3

Author(s):

C. G. Greenough ◽

R. D. Fraser

Keyword(s):

Computed Tomography ◽

Spinal Canal ◽

Clinical Implications ◽

Computed Tomography Scans ◽

Lumbar Spinal Canal ◽

Lumbar Spinal

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Computed tomography of the postoperative intervertebral disc and lumbar spinal canal

Neurosurgery ◽

10.1097/00006123-199107000-00001 ◽

1991 ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

R Heilbronner ◽

H Fankhauser ◽

P Schnyder ◽

N de Tribolet

Keyword(s):

Computed Tomography ◽

Intervertebral Disc ◽

Spinal Canal ◽

Lumbar Spinal Canal ◽

Lumbar Spinal

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A Magnatic Resonance Imaging Morphometric Study of Lumbar Epidural Fat Distribution: Implications for Lumbar Epidural Lipomatosis

10.21203/rs.3.rs-91962/v1 ◽

2020 ◽

Author(s):

Haowei Jiang ◽

Yongli Wang ◽

Jiangbo Nie ◽

Mingchao Jin ◽

Tianshun Fang ◽

...

Keyword(s):

Spinal Canal ◽

Communication Systems ◽

Growth Trend ◽

Men And Women ◽

Epidural Lipomatosis ◽

Significant Difference ◽

Epidural Fat ◽

The Mean ◽

Lumbar Spinal Canal ◽

Lumbar Spinal

Abstract Background. To the best of our knowledge, no published English literatures has provided detailed parameters about the normal epidural fat and other contents in lumbar spinal canal. Our objective was to quantify reference data of epidural fat and the contents of lumbar spinal canal to guide the diagnosis of lumbar epidural lipomatosis.Methods. 178 content lumbar MRI cases were analysis on Picture Archiving and Communication Systems (PACS).Results. the mean anteroposterior ( AP ) diameters ± standard deviation(SD) of lumbar vertebral body ( V )、dural sac ( DS )、epidural fat ( EF ) each measured lever on the mid-sagittal MRI and the mean cross-sectional area ± SD of lumbar spinal canal ( SC )、DS of each measured lever on the axial MRI were showed. The mean AP diameters of V and DS are showed obvious significant difference between men and women ( P ＜0.05). The mean AP diameters of EF is showed no significant difference between men and women (P ＞0.05). Also The mean area of lumbar SC (male 316.7 mm2, female 306.4 mm2 ) and DS (male 198.6 mm2, female 189.2 mm2) are showed obvious significant difference between men and women ( P ＜0.05). The growth trend of the thickness of epidural fat in lumbar spinal canal is showed.Conclusion. Our investigation provides insight into the anatomy of epidural fat and gives the relevant parameters of lumbar spinal canal and its contents on MRI. MRI is the most sensitive imaging test to diagnose lumbar epidural lipomatosis

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A Study of Transverse Diameter of The Lumbar Spinal Canal in Plain Radiograph in Population of Telangana, India

Academia Anatomica International ◽

10.21276/aanat.2020.6.2.18 ◽

2020 ◽

Vol 6 (2) ◽

pp. 81-85

Author(s):

Yousuf Begum ◽

Syed Rehan Haﬁz Daimib ◽

Syeda Ayesha Fatima ◽

Syeda Khadija Fatima

Keyword(s):

Vertebral Body ◽

Spinal Canal ◽

Imaging Techniques ◽

Plain Radiograph ◽

Transverse Diameter ◽

Vertebral Canal ◽

Mean Width ◽

The Mean ◽

Lumbar Spinal Canal ◽

Lumbar Spinal

Background: The present study was conducted to determine Transverse diameter (inter-pedicular distances) of the lumbar spinal canal measured in plain antero-posterior radiograph of 140 subjects (80 males, 60 females) aged between 20 to 60 years in population of Telangana. Subjects and Methods : The present study was conducted in the department of Anatomy, in a teaching medical college and hospital in Hyderabad, Telangana, India. It comprised of antero-posterior plain radiographs of lumbar spine of 140 subjects, aged between 20 to 60 years. Transverse diameter of the lumbar spinal canal or inter-pedicular distances (IPD), and transverse diameter of the vertebral body was measured using electronic Digital Vernier calipers, and the ratio between transverse diameter of vertebral canal and transverse diameter of the corresponding vertebral body were analyzed. Results: Out of 140 patients, males were 80 and females were 60. The mean inter-pedicular distance (IPD) at L1 was 24.2 mm in males and 23.4 mm in females, and at L5 was 30.2 mm in males and 29.6 mm in females. Mean transverse diameter of lumbar vertebral canal (I.P.D) is minimum at L1 vertebra in both sexes. The maximum values of I.P.D were recorded for vertebra L5 for both sexes. The values of IPD are higher in male population in comparison to female counterparts. The mean width of the vertebral body is gradually increasing from L1 to L5. Ratio between transverse diameter of vertebral canal and transverse diameter of the corresponding vertebral body is seen to be constant (0.6) at all lumbar level in both the sexes. Conclusion: Authors found that there is variation in the size of the lumbar vertebral canal between males and females. Even after the revolution of various imaging techniques like CT Scan, MRI, etc., the plain radiography remains the mainstay of investigative procedure particularly in rural setup.

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Microendoscopic Decompression Surgery for Lumbar Spinal Canal Stenosis via the Paramedian Approach: Preliminary Results

Global Spine Journal ◽

10.1055/s-0032-1319774 ◽

2012 ◽

Vol 2 (2) ◽

pp. 087-093 ◽

Cited By ~ 10

Author(s):

Kazunori Nomura ◽

Munehito Yoshida

Keyword(s):

Spinal Canal ◽

Spinous Process ◽

Japanese Orthopaedic Association ◽

Spinal Canal Stenosis ◽

Decompression Surgery ◽

Lumbar Spinal Canal Stenosis ◽

Canal Stenosis ◽

The Mean ◽

Lumbar Spinal Canal ◽

Lumbar Spinal

The objective of this study was to evaluate the efficacy of a microendoscopic spinal decompression surgical technique using a novel approach for the treatment of lumbar spinal canal stenosis (LSCS). The following modifications were made to the conventional microendoscopic bilateral decompression via the unilateral approach: the base of the spinous process was first resected partially to secure a working space, so as not to separate the spinous process from the lamina. The tip of the tubular retractor was placed at the midline of the lamina, where laminectomy was performed microendoscopically. A total of 126 stenotic levels were decompressed in 70 patients. The mean operating time per level was 77.0 minutes, and the mean intraoperative blood loss per level was 15.0 mL. There were no dural tears or neurological injuries intraoperatively. Fracture of the spinous process was detected postoperatively in two patients, both of whom were asymptomatic. All patients could be followed up for at least 12 months. Their median Japanese Orthopaedic Association (JOA) score improved significantly from 16 points preoperatively to 27.5 points after the surgery (p < 0.001). The case series showed that the modifications of the technique improved the safety and ease of performance of the microendoscopic decompression surgery for LSCS.

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