The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study

Al-Saeed, Osama; Marwan, Yousef; Kombar, Osama; Samir, Ahmed; Sheikh, Mehraj

doi:10.1007/s10195-016-0396-9

Cited by 8 publications

(4 citation statements)

References 26 publications

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“…Pedicle endosteal width in this study was the smallest parameter of all parameters, and it continuously increased from C3 to C7, and this was in keeping with previous studies [ 4 , 13 , 14 ]. The pedicle width of the Ugandan population studied is smaller than that reported in studies elsewhere among Europeans and Americans as reported a systematic review study (Liu, Napolitano, & Ebraheim, 2010).…”

Section: Discussionsupporting

confidence: 93%

Pedicle Morphometry of Subaxial Cervical Spine Using Computed Tomography Scans among Adult Ugandan Subpopulation

Jonathan

Muzeyi

Erem

et al. 2022

International Journal of Biomedical Imaging

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Background. Accurate placement of pedicle screws in the subaxial cervical spine requires precise understanding of vertebra anatomy. Little is known about the morphometric characteristics of the subaxial cervical pedicle in the Ugandan population. The objective of the study was to determine the morphometric dimensions of pedicles in the subaxial cervical spine among the adult Ugandan population. Methods. We conducted a cross-sectional study from March to November 2019 among adult Ugandans with a normal cervical CT scan at Nsambya hospital in Kampala. Eligible participants were consecutively recruited into the study. Data on baseline characteristics and pedicle dimensions from the CT scan finding was collected using a structured questionnaire. Data was analysed using Stata 13.0. Pedicle dimensions for the different levels of subaxial cervical vertebrae were summarised as means and standard deviations, the Mann–Whitney test was used to compare pedicle dimensions for the different vertebra levels among females and males on both right and left sides, and the level of significance was set at 0.05. Results. A total of 700 subaxial cervical pedicles (C3-C7) from 49 males and 21 female participants were studied. Pedicle width diameter showed cephalocaudal gradual increment from C3 1.65(0.63) mm to 3.46(0.75) mm at C7. Pedicle height also showed an increase caudally with smallest diameter at C3 (1.98(0.76) mm) and largest at C5 in females (3.67(6.42) mm) and at C7 in males (3.83(0.76) mm). The pedicle height was wider than the pedicle width at all levels. The pedicle chord length gradually increased caudally in both sexes ranging from 29.08(1.35) mm at C3 to 32.53(3.19) mm at C7. The axial angles were oriented medially and showed no consistent trend ranging between 50° and 53°. The sagittal angles decreased as one moved from C3 to C7. The dimensions of females were significantly smaller than in males. Conclusion. Pedicle endosteal width was smaller than pedicle height dimensions at all levels. Pedicle cord length increased caudally. The pedicle dimensions, except angulations, were smaller in females than in males.

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Section: Discussionsupporting

confidence: 93%

Pedicle Morphometry of Subaxial Cervical Spine Using Computed Tomography Scans among Adult Ugandan Subpopulation

Jonathan

Muzeyi

Erem

et al. 2022

International Journal of Biomedical Imaging

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“…Pedicle endosteal width in this study was the smallest parameter of all parameters and it continuously increased from C3 to C7 and this was in keeping with previous studies (3,16,17). The pedicle width of the Ugandan population studied is smaller than that reported in studies elsewhere among Europeans and Americans as reported a systematic review study (18).…”

Section: Pedicle Endosteal /Inner Widthsupporting

confidence: 90%

Pedicle Morphometry of Sub Axial Cervical Spine using Computed Tomography Scans among Adult Ugandan Population

Jonathan¹,

Muzeyi²,

Geoffrey³

et al. 2021

Preprint

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Background: Accurate placement of pedicle screws in the sub axial cervical spine requires precise understanding of vertebrae anatomy. Little is known about the morphometric characteristics of the sub axial cervical pedicle in the Ugandan population. The objective of the study was to determine the morphometric dimensions of pedicles in the sub axial cervical spine among the adult Ugandan population. Methods: We conducted a cross sectional study from March to November 2019 among adult Ugandans with a normal cervical CT scan at Nsambya hospital in Kampala. Eligible participants were consecutively recruited into the study. Data on baseline characteristics and pedicle dimensions from the CT scan findings were collected using a structured questionnaire and analysed using Stata 13.0. Pedicle dimensions for the different levels of sub axial cervical vertebrae were summarised as means and standard deviations, the Mann Whitney test was used to compare pedicle dimensions for the different vertebrae level among females and males on both right and left side and the level of significance was set at 0.05. Results: A total of 700 sub axial cervical pedicles (C3-C7) from 49 males and 21 female participants were studied. Pedicle width diameter showed cephalo-caudal gradual increment from C3 [1.65(0.63) mm] to [3.46(0.75) mm] at C7. Pedicle height also showed an increase caudally with smallest diameter at C3 [1.98(0.76) mm] and largest at C5 in females [3.67(6.42) mm] and at C7in males [3.83(0.76) mm]. The pedicle height was wider than the pedicle width at all levels. The pedicle chord length gradually increased caudally in both sexes ranging from [29.08(1.35) mm] at C3 to [32.53(3.19) mm] at C7. The axial angles were oriented medially and showed no consistent trend ranging between 500 and 530. The sagittal angles decreased as one moved from C3 to C7. The dimensions of females were significantly smaller than in males.Conclusion: Pedicle endosteal width was smaller than pedicle height dimensions at all levels. Pedicle cord length increased caudally. The pedicle dimensions except angulations, were smaller in females than in males.

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“…In comparison, Rao et al 12 noted the overall mean PAL to be 32.6 mm at C3, 32 mm at C4, 32.55 mm at C5, 32.35 mm at C6, and 30.75 mm at C7 in the American population. Al-saeed et al 30 noted in an Arab population that PAL was 32.2 mm at C3, 32.3 mm at C4, 33 mm at C5, 33.5 mm at C6, and 34 mm at C7. Wasinpongwanich et al 23 noted in the Thai population that PAL was 29.10 mm at C3, 30.48 mm at C4, 32.05 mm at C5, 33.40 mm at C6, and 34.36 mm at C7.…”

Section: Discussionmentioning

confidence: 98%

Computerized Tomography–Based Morphometric Analysis of Subaxial Cervical Spine Pedicle in Asymptomatic Indian Population

et al. 2018

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Background: The purpose of this study was to analyze morphometry of the subaxial cervical spine pedicles in an Indian population based on computed tomography (CT), and thus assess the safety and feasibility of cervical pedicle screw in the subaxial cervical spine. Methods: CT scans of 500 subaxial cervical spine vertebrae were analyzed from 100 patients presenting to our institution and undergoing cervical spine CT scan for an unrelated cause as part of ATLS protocol. Pedicle width (PW), pedicle axis length (PAL), pedicle transverse angulation (PTA), and lateral pedicle distance (LPD) were calculated on axial CT scans, and pedicle height (PH), pedicle length (PL), superior pedicle distance (SPD), and pedicle sagittal angulation (PSA) were calculated on sagittal CT scans.

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The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study

Cited by 8 publications

References 26 publications

Pedicle Morphometry of Subaxial Cervical Spine Using Computed Tomography Scans among Adult Ugandan Subpopulation

Pedicle Morphometry of Subaxial Cervical Spine Using Computed Tomography Scans among Adult Ugandan Subpopulation

Pedicle Morphometry of Sub Axial Cervical Spine using Computed Tomography Scans among Adult Ugandan Population

Computerized Tomography–Based Morphometric Analysis of Subaxial Cervical Spine Pedicle in Asymptomatic Indian Population

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