A Study of Measurements of Spinal Canal at the Level of Lower Three Lumbar Vertebra by 16 Slice CT Scanner in Nepalese Population

Mallik, Mukesh; Paudel, Keshav Raj; Subedi, Nuwadatta; Sah, Sanjay Kumar; Subedee, Anish; Adhikari, Deepak

doi:10.3126/jcmsn.v10i4.12971

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Transverse diameter (TD) of vertebral canal was measured as the distance between the medial surface of the right and left pedicles ( Figure 1). 10 Antero-posterior diameter (APD) of vertebral canal was measured as the distance from posterior margin of vertebral body to anterior margin of junction of two laminae ( Figure 2). 11 Transverse diameter (TD) of vertebral body was measured at the distance between lateral margins vertebral body ( Figure 3).…”

Section: Methodsmentioning

confidence: 99%

Radiometric Analysis of Body and Canal of Lumbar Vertebrae among Population of Central Nepal

Mansur

Karki²,

Mehta³

et al. 2020

J Coll Med Sci-Nepal

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Background: Lumbar region is the most vulnerable area for the common symptom of backache. The lumbar part of spinal canal encloses the cauda equina. Narrowing of the canal can be either developmental or acquired. This leads to compression of the cauda equina and subsequently pain develops which may be further associated with neurological features. The aim of the present study was to measure the dimensions of lumbar vertebrae. Methods: The present study was a descriptive and cross-sectional type. It consisted of 266 images of computed tomography scan of individuals. The various dimensions of lumbar vertebral canal and body were measured in millimeter. The descriptive statistical analysis was done. Results: The mean of the transverse diameter of lumbar vertebral canal increased from L1 to L5 but the antero-posterior diameter decreased from L1 to L4 followed by increased at L5. It was also observed that both transverse and antero-posterior diameter of body progressively increased from L1 to L5 vertebrae. The canal-body ratio was inconsistent for any vertebral level. There were significant differences in various dimensions of lumbar vertebrae between males and females. Conclusions: All the measured diameters of canal and body revealed increasing cranio-caudally sequence in the lumbar part of spine. The antero-posterior diameter of canal could attract the attention of clinician as an important structural change with significant radiological and clinical implications. Keywords: back pain; lumbar vertebrae; stenosis

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Section: Methodsmentioning

confidence: 99%

Radiometric Analysis of Body and Canal of Lumbar Vertebrae among Population of Central Nepal

Mansur

Karki²,

Mehta³

et al. 2020

J Coll Med Sci-Nepal

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“…All the parameters were larger in males than in females except antero-posterior dimension of the canal in transverse section (APT), which is larger in females. 22…”

Section: Original Articlementioning

confidence: 99%

Spinal Canal Measurements at the Level of Lower Three Lumbar Vertebrae by 128-Slice CT Scanner in Bangladeshi Population

Siraj¹,

Ghafoor

Parven

et al. 2022

Ibrahim card. med. j.

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Background & objective : The knowledge of normal diameter of lumbar spinal canal is very important for diagnosing lumbar spinal canal stenosis and also for performing spinal surgeries at the lumbar level by Neurosurgeons and Orthopedicians. However, it varies widely among ethnic groups and between sexes in the same ethnic group. The present study was conducted to describe the morphometry of lumbar vertebrae at the level of L3-L5. Methods: This descriptive cross-sectional study was conducted on 302 patients (aged 20-60 years) at Ibrahim Cardiac Hospital & Research Institute between July 2019 to December, 2020 who underwent diagnostic CT scans for abdominal or genitourinary complaints without any known vertebral column pathology or complaints of low back pain or other abnormalities attributable to lumbar spine. Patients having sciatic pain with or without pain in the back, having past history of back surgery and patients with osteophytes or developmental anomalies, trauma or vertebral fracture and known case of lordosis, scoliosis or kyphosis or other abnormalities in lumbar vertebrae were also excluded. A CT scan was performed using 128-slice multi-detector CT with unenhanced CT images from the level of diaphragm to pubic symphysis so that the area from D12 to S1 vertebra be covered (field of view). Sections 3-mm thick with reconstruction up to 1 mm were analyzed and different parameters of the spinal canal and vertebral body were measured in sagittal and transverse sections. The images were reconstructed in true axial, coronal, and sagittal planes. The canal-body ratio (CBR) was determined by dividing the sagittal diameter of the spinal canal by the sagittal diameter of the vertebral body. Result: The findings of the present study demonstrate that nearly two-thirds (65.5%) of the subjects were early middle-aged or middle-aged with mean age of the subjects being 43 years. A male predominance was observed in the series with male to female ratio being 4:1. The study revealed that all the dimensions of the canal and the body in transverse and sagittal sections were observed to increase from level L3 to L5, while the canal body ratio was decreased slightly from L3-L5. The males have significantly wider vertebral body at all levels (L3-L5) of lumbar vertebrae compared to their female counterparts. Vertebral body diameter in sagittal section at L3 was significantly greater in males than those in females; however, they were not different between sexes at L4 and L5 levels. Canal-body ratio (CBR) was fairly comparable between males and females at L3 and L4, but it was greater in males than that in females at L5. No significant difference was observed between L3 & L4 and L4 & L5 in the same individuals in terms of CBR. Conclusion: The study concluded that there are significant variations in some of the lumbar spinal canal dimensions and vertebral body measurements (including CBR) from L3-L5 between males and females. Although there was no significant difference between L3 and L4 in the same individuals in terms of CBR, there was reasonable difference between L4 and L5 lumbar vertebrae. The findings are of much significance in the investigation of vertebral column pathology in the context of our population. Ibrahim Card Med J 2021; 11 (1): 8-13

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A Study of Measurements of Spinal Canal at the Level of Lower Three Lumbar Vertebra by 16 Slice CT Scanner in Nepalese Population

Cited by 2 publications

References 7 publications

Radiometric Analysis of Body and Canal of Lumbar Vertebrae among Population of Central Nepal

Radiometric Analysis of Body and Canal of Lumbar Vertebrae among Population of Central Nepal

Spinal Canal Measurements at the Level of Lower Three Lumbar Vertebrae by 128-Slice CT Scanner in Bangladeshi Population

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