Cover Image

Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity

Introduction Unstable sacroiliac joint injury treated with open reduction and internal fixation, and ventral sacroiliac joint plating has shown promising results and outcome with such injuries. The morphology of sacroiliac region however, has not been thoroughly studied in order to guide the app...

Full description

Saved in:
Bibliographic Details
Main Author: Singh, Sarbdev
Format: Thesis
Language:English
Published: 2020
Subjects:
R Medicine
Online Access:http://eprints.usm.my/52575/1/SARBDEV%20SINGH-24%20pages.pdf
http://eprints.usm.my/52575/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.usm.eprints.52575
record_format eprints
spelling my.usm.eprints.52575 http://eprints.usm.my/52575/ Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity Singh, Sarbdev R Medicine Introduction Unstable sacroiliac joint injury treated with open reduction and internal fixation, and ventral sacroiliac joint plating has shown promising results and outcome with such injuries. The morphology of sacroiliac region however, has not been thoroughly studied in order to guide the application of screws when plating the sacroiliac joint. Hence, we performed a CT morphometric study of the sacroiliac region to determine the ideal screw trajectory and length in order to safely apply a ventral sacroiliac plate. Materials and methods A total of 112 Pelvic CT images performed in the year 2017 were measured after sagittal tilt, coronal tilt and axial rotation were adjusted. We measured sacroiliac joint angles on both true axial and coronal planes, along with osseus thickness between sacroiliac joint and 1st sacral foramina, vertical distance from superior sacral wall till mid level of 1st sacral foramina and till mid level of 2nd sacral foramina respectively. All parameters were measured up to 0.1o and 0.1mm, and statistical analysis was performed using IBM SPSS Statistics Version 24. Independent t-test was used to determine the mean difference between sacroiliac joint angles in axial and coronal plane by gender. Descriptive analysis of the numerical variable was presented as mean (standard deviation). Results The mean sacroiliac joint angle in axial plane was 13.39o (SD 5.51), sacroiliac joint angle in coronal plane was 14.17o (SD 3.43), mean osseous thickness between sacroiliac joint and 1st sacral foramina was 20.80mm (SD 3.29), mean vertical distance from superior sacral wall till 1st sacral foramina 18.67mm (SD 5.01) and till 2nd sacral foramina 42.69mm (SD 5.31) respectively. Males however showed statistically significant higher SIJ angle in coronal plane when compared to their female counterparts with p=0.02. Conclusion Ventral sacroiliac joint plating would be best when done with the screw over the sacral side inserted at an angle in the coronal plane of about 14 degrees medially, with screw length of about 37mm, and with the screw hole of the plate not exceeding 2cm medially from the sacroiliac joint, to minimise injury to the neural elements and to get best bony purchase. 2020 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/52575/1/SARBDEV%20SINGH-24%20pages.pdf Singh, Sarbdev (2020) Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic R Medicine
spellingShingle R Medicine
Singh, Sarbdev
Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity
description Introduction Unstable sacroiliac joint injury treated with open reduction and internal fixation, and ventral sacroiliac joint plating has shown promising results and outcome with such injuries. The morphology of sacroiliac region however, has not been thoroughly studied in order to guide the application of screws when plating the sacroiliac joint. Hence, we performed a CT morphometric study of the sacroiliac region to determine the ideal screw trajectory and length in order to safely apply a ventral sacroiliac plate. Materials and methods A total of 112 Pelvic CT images performed in the year 2017 were measured after sagittal tilt, coronal tilt and axial rotation were adjusted. We measured sacroiliac joint angles on both true axial and coronal planes, along with osseus thickness between sacroiliac joint and 1st sacral foramina, vertical distance from superior sacral wall till mid level of 1st sacral foramina and till mid level of 2nd sacral foramina respectively. All parameters were measured up to 0.1o and 0.1mm, and statistical analysis was performed using IBM SPSS Statistics Version 24. Independent t-test was used to determine the mean difference between sacroiliac joint angles in axial and coronal plane by gender. Descriptive analysis of the numerical variable was presented as mean (standard deviation). Results The mean sacroiliac joint angle in axial plane was 13.39o (SD 5.51), sacroiliac joint angle in coronal plane was 14.17o (SD 3.43), mean osseous thickness between sacroiliac joint and 1st sacral foramina was 20.80mm (SD 3.29), mean vertical distance from superior sacral wall till 1st sacral foramina 18.67mm (SD 5.01) and till 2nd sacral foramina 42.69mm (SD 5.31) respectively. Males however showed statistically significant higher SIJ angle in coronal plane when compared to their female counterparts with p=0.02. Conclusion Ventral sacroiliac joint plating would be best when done with the screw over the sacral side inserted at an angle in the coronal plane of about 14 degrees medially, with screw length of about 37mm, and with the screw hole of the plate not exceeding 2cm medially from the sacroiliac joint, to minimise injury to the neural elements and to get best bony purchase.
format Thesis
author Singh, Sarbdev
author_facet Singh, Sarbdev
author_sort Singh, Sarbdev
title Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity
title_short Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity
title_full Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity
title_fullStr Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity
title_full_unstemmed Computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in Malay ethnicity
title_sort computed tomographic morphometric analysis of sacroiliac region for ventral plating of sacroiliac joint in malay ethnicity
publishDate 2020
url http://eprints.usm.my/52575/1/SARBDEV%20SINGH-24%20pages.pdf
http://eprints.usm.my/52575/
_version_ 1734300766176280576
score 13.211869

Similar Items