A PET/CT-based Morphometric Study of Spinal Canal in Korean Young Adults: Anteroposterior Diameter from Cervical Vertebra to Sacrum

Kang, Moo Sung; Park, Jeong Yoon; Chin, Dong Kyu; Kim, Kyung Hyun; Kuh, Sung Uk; Kh, Kim; Cho, Young-Eun

doi:10.14245/kjs.2012.9.3.165

Cited by 8 publications

(12 citation statements)

References 22 publications

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“…They found that average thoracic diameters at T1, T8 and T12 were 16.1, 14.6, and 16.7 mm, respectively. As expected, average spinal cord diameters were smaller on AP diameter with measurements from T1 to T12 ranging from 5 to 9 mm, with the spinal cord diminishing in size from T1 to T8 and increasing in size from T8 to T12 26 . Overall, spinal canal stenosis is defined by having a canal AP diameter of <10 mm, with a critical “pathologic” threshold of 5 mm 26,27 …”

Section: Discussionsupporting

confidence: 53%

“…To ensure adequate canal diameter for SCS paddle lead placement, we examined studies that help define average thoracic canal, average spinal cord diameter, and critical stenosis. Sagittal AP diameter of the spinal canal has been shown to be the only measurement that correlates well with cross‐sectional area and is a good indicator of spinal canal size 26,27 . Fradet et al 27 reported variation among subject of up to 150% in both spinal canal diameter and spinal cord diameter using high‐resolution MRI, reporting overall thoracic spinal canal diameters (T1, T8, and T12) from various studies showed ranges from 15.0 to 16.1 mm, 14.6 to 16.6 mm, and 16.7 to 17.2, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…The sagittal anteroposterior (AP) diameter of the spinal canal is an easy measurement that correlates well with both cross‐sectional area and spinal canal size 26 . Thoracic spinal canal diameter was measured in the sagittal plane perpendicular to the disc at T5/6, T6/7, T7/8, T8/9, T9/10, and T11/12 from the dorsal aspect of the disc to the ventral lamina or ligamentum flavum (Figure 1).…”

Section: Methodsmentioning

confidence: 99%

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Analysis of spinal canal diameter in the placement of thoracic spinal cord stimulator paddle leads

Ragel,

Riedman,

McGehee

et al. 2023

Pain Practice

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BackgroundNeurologic deficit is known as a rare complication of thoracic spinal cord stimulator (SCS) paddle lead implantation, but many believe its incidence after SCS paddle lead placement is under‐reported. It is possible that imaging characteristics may be used to help predict safe paddle lead placement.ObjectiveThis imaging study was undertaken to determine the minimum canal diameter required for safe paddle lead placement.MethodsPatients who underwent thoracic laminotomy for new SCS paddle lead placement from January 2018 to March 2023 were identified retrospectively. Preoperative thoracic canal diameter was measured in the sagittal plane perpendicular to the disc space from T5/6 to T11/12. These thoracic levels were chosen because they span the most common levels targeted for SCS placement. Patients with and without new neurologic deficits were compared using a Mann–Whitney U‐test.ResultsOf 185 patients initially identified, 180 had thoracic imaging available for review. One (0.5%) and 2 (1.1%) of 185 patients complained of permanent and transient neurologic deficit after thoracic SCS placement, respectively. Patients with neurologic deficits had average canal diameters of <11 mm. The average canal diameter of patients with and without neurologic deficits was 10.2 mm (range 6.1–12.9 mm) and 13.0 mm (range 5.9–20.2), respectively (p < 0.0001).ConclusionPostoperative neurologic deficit is an uncommon complication after thoracic laminotomy for SCS paddle lead placement. The authors recommend ensuring a starting thoracic canal diameter of at least 12 mm to accommodate a SCS paddle lead measuring 2 mm thick to ensure a final diameter of >10 mm. If canal diameter is <12 mm, aggressive undercutting of the lamina, a second laminotomy, or placement of smaller SCS wire leads should be considered.

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Section: Discussionsupporting

confidence: 53%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Analysis of spinal canal diameter in the placement of thoracic spinal cord stimulator paddle leads

Ragel,

Riedman,

McGehee

et al. 2023

Pain Practice

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“…The average CT-VBD gradually decreased from T1 to T4 and increased from T5 to L5. Singh et al [26] Kang M S et al (2012) [39] reported in the thoracic spine, the AP diameter of neural canal gradually decreased from T1 (16.1±1.2mm) to T8 (14.6±1.3mm) and increased to T12 (16.7±1.2mm). Berry et al reported AP diameters of neural canal 15.0mm at T2, 16.6 mm at T7, 17.2 mm at T12.…”

Section: Discussionmentioning

confidence: 93%

A MORPHOMETRIC STUDY OF BODY AND VERTEBRAL CANAL OF THORACIC VERTEBRAE & ITS CLINICAL SIGNIFICANCE

Das¹,

Singh²,

Gupta³

et al. 2018

IJAR

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Accurate anatomical descriptions of the size, shape and orientation of the main structures of the human vertebrae and intervertebral discs are necessary for a variety of approaches and objectives such as the identification of clinical situations that are related to the morphometry of the spine structures, such as the incidence of low-back pain related to the spinal canal size. So the present study was done to measure the various morphometric parameters of thoracic vertebral body and neural canal. Materials and Methods: Total 100 sets of dry human thoracic vertebra were obtained. These are of unknown age and sex. All Morphometric parameters were measured by digital Vernier caliper of accuracy of 0.01mm. Anterior height of the body (VBAH), Posterior height of the body (VBPH), Antero-posterior Diameter of Vertebral body (VBAPD), Transverse Diameter of Vertebral body (VBTD), Anteroposterior diameter of Vertebral Canal (VCAPD) and Transverse diameter of Vertebral Canal (VCTD). All parameters were entered into excel sheet and analysis was done by SPSS.Results: Mean VBAH ranged from 13.17+1.35mm (T1) to 17.92+2.25mm (T12), mean VBPH from 15.01+1.27mm (T1) to 20.92+4.58mm (T12), mean VBAPD ranged from 11.62+1.96mm (T1) to 18.12+5.71mm (T12), mean VBTD from 24.28+5.68mm (T1) to 28.59+5.97mm (T12), mean VCAPD ranged from 12.46+1.30mm (T1) to 16.05+2.41mm (T12) and VCTD from 17.15+2.19mm (T1) to 20.11+3.74mm (T12). Conclusion:The results of the present study may help in designing implants and instrumentations; understanding spine pathologies; and management of spinal disorder.

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“…2,4,7,11 However, comparison of published data reveals that the range of variation in the reported sagittal diameter is considerable. 1,[3][4][5][6]10 Those diversity is partly due to the variation in the radiographic technique (focus-to-film distance) and variation in the body build of the subjects (affecting the object-to-film distance).…”

Section: Discussionmentioning

confidence: 99%

Morphometric Analysis of the Corpus, Spinal Canal and Torg Ratio Using Midsagittal Cervical Vertebrae Computed Tomography Scan: Indonesian Population

Dahlan

Saputra

Yudoyono

et al. 2014

ijihs

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Objective: To determine the normal ranges of cervical spinal canal morphometry in Indonesian population and to compare the acquired data collected from other populations Methods:Computed tomography measurements on the diameter of midsagital spinal canal and corpus of cervical vertebrae and its Torg ratio from the lower cervical (C3-C7) canal from 24 normal Indonesian adults were performed at the Radiology Department of Dr. Hasan Sadikin General Hospital. Patients who had cervical spine disorders and those under 20 years old were exluded. We used computed tomography scan midsagittal view to measure the aforementioned parameters. Results:The average diameter for the cervical spinal canals for the Indonesian population is comparable with those of other Asian populations such as Hongkong and India, albeit with smaller Torg ratio. Conclusions:This study reports the normal radiological anatomy of the midsagital spinal canal and corpus of cervical vertebrae as well as Torg ratio from the lower cervical vertebrae among Indonesian population. The measurements result of this study shows that, although slightly smaller, the measurement results for those parameters are identical with other Asian populations.

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A PET/CT-based Morphometric Study of Spinal Canal in Korean Young Adults: Anteroposterior Diameter from Cervical Vertebra to Sacrum

Cited by 8 publications

References 22 publications

Analysis of spinal canal diameter in the placement of thoracic spinal cord stimulator paddle leads

Analysis of spinal canal diameter in the placement of thoracic spinal cord stimulator paddle leads

A MORPHOMETRIC STUDY OF BODY AND VERTEBRAL CANAL OF THORACIC VERTEBRAE & ITS CLINICAL SIGNIFICANCE

Morphometric Analysis of the Corpus, Spinal Canal and Torg Ratio Using Midsagittal Cervical Vertebrae Computed Tomography Scan: Indonesian Population

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