Sacral Anatomical Orientation in the Lebanese Population

Introduction. PI is currently used as the gold standard measurement in spinopelvic anatomy. There is a need for a reliable method to calculate sacral anatomic orientation (SAO) independent of posture and to establish its association with PI, which was previously established in a single study (Peleg...

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Main Authors: Joseph Maalouly, Fouad Jabbour, Elias Saidy, Georgio Lati, Gerard El-Hajj, Dany Aouad, Rami Ayoubi, Alexandre Nehme
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Advances in Orthopedics
Online Access:http://dx.doi.org/10.1155/2020/4292384
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author Joseph Maalouly
Fouad Jabbour
Elias Saidy
Georgio Lati
Gerard El-Hajj
Dany Aouad
Rami Ayoubi
Alexandre Nehme
author_facet Joseph Maalouly
Fouad Jabbour
Elias Saidy
Georgio Lati
Gerard El-Hajj
Dany Aouad
Rami Ayoubi
Alexandre Nehme
author_sort Joseph Maalouly
collection DOAJ
description Introduction. PI is currently used as the gold standard measurement in spinopelvic anatomy. There is a need for a reliable method to calculate sacral anatomic orientation (SAO) independent of posture and to establish its association with PI, which was previously established in a single study (Peleg et al., 2007). Therefore, the aim of our study is the application and verification of this association on a Lebanese sample. Methods. Methods for measuring SAO and PI on living individuals are described. The study was carried out on 200 adult individuals using CT 3D images (volume-rendering method). Reliability (intratester and intertester) was evaluated using the intraclass correlation test. A regression analysis was carried out to evaluate the association between the two measurements. Results. There were 103 females (51%) and 97 males (49%) with a mean age of 58.68 ± 19.6 years (min = 20; max = 93). The mean SAO and PI in our population were found to be 52.65° (SD = 8.16°) and 59.08° (SD = 12.53°), respectively. SAO and PI measurements were highly correlated (Pearson correlation test; r = −0.296, P<0.0001 for our general population). PI can be predicted via SAO, i.e., SAO = (−0.193 × PI) + 64.057. Conclusions. SAO may be an important tool, alongside PI, in defining the sagittal shape of the spine and useful for understanding its association with spinal diseases as they are not affected by postural changes.
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spelling doaj-art-e682ffb00958482b8aefefec83901c772025-08-20T02:21:03ZengWileyAdvances in Orthopedics2090-34642090-34722020-01-01202010.1155/2020/42923844292384Sacral Anatomical Orientation in the Lebanese PopulationJoseph Maalouly0Fouad Jabbour1Elias Saidy2Georgio Lati3Gerard El-Hajj4Dany Aouad5Rami Ayoubi6Alexandre Nehme7Department of Orthopedic Surgery and Traumatology, Saint George Hospital University Medical Center, Balamand University, P.O. Box 166378, Achrafieh, Beirut 1100 2807, LebanonDepartment of Orthopedic Surgery and Traumatology, Saint George Hospital University Medical Center, Balamand University, P.O. Box 166378, Achrafieh, Beirut 1100 2807, LebanonDepartment of Orthopedic Surgery and Traumatology, Saint George Hospital University Medical Center, Balamand University, P.O. Box 166378, Achrafieh, Beirut 1100 2807, LebanonDepartment of Orthopedic Surgery and Traumatology, Saint George Hospital University Medical Center, Balamand University, P.O. Box 166378, Achrafieh, Beirut 1100 2807, LebanonDepartment of Radiology, Saint George Hospital University Medical Center, Balamand University, P.O. Box 166378, Achrafieh, Beirut 1100 2807, LebanonDepartment of Orthopedic Surgery and Traumatology, Saint George Hospital University Medical Center, Balamand University, P.O. Box 166378, Achrafieh, Beirut 1100 2807, LebanonDepartment of Orthopedic Surgery and Traumatology, Saint George Hospital University Medical Center, Balamand University, P.O. Box 166378, Achrafieh, Beirut 1100 2807, LebanonDepartment of Orthopedic Surgery and Traumatology, Saint George Hospital University Medical Center, Balamand University, P.O. Box 166378, Achrafieh, Beirut 1100 2807, LebanonIntroduction. PI is currently used as the gold standard measurement in spinopelvic anatomy. There is a need for a reliable method to calculate sacral anatomic orientation (SAO) independent of posture and to establish its association with PI, which was previously established in a single study (Peleg et al., 2007). Therefore, the aim of our study is the application and verification of this association on a Lebanese sample. Methods. Methods for measuring SAO and PI on living individuals are described. The study was carried out on 200 adult individuals using CT 3D images (volume-rendering method). Reliability (intratester and intertester) was evaluated using the intraclass correlation test. A regression analysis was carried out to evaluate the association between the two measurements. Results. There were 103 females (51%) and 97 males (49%) with a mean age of 58.68 ± 19.6 years (min = 20; max = 93). The mean SAO and PI in our population were found to be 52.65° (SD = 8.16°) and 59.08° (SD = 12.53°), respectively. SAO and PI measurements were highly correlated (Pearson correlation test; r = −0.296, P<0.0001 for our general population). PI can be predicted via SAO, i.e., SAO = (−0.193 × PI) + 64.057. Conclusions. SAO may be an important tool, alongside PI, in defining the sagittal shape of the spine and useful for understanding its association with spinal diseases as they are not affected by postural changes.http://dx.doi.org/10.1155/2020/4292384
spellingShingle Joseph Maalouly
Fouad Jabbour
Elias Saidy
Georgio Lati
Gerard El-Hajj
Dany Aouad
Rami Ayoubi
Alexandre Nehme
Sacral Anatomical Orientation in the Lebanese Population
Advances in Orthopedics
title Sacral Anatomical Orientation in the Lebanese Population
title_full Sacral Anatomical Orientation in the Lebanese Population
title_fullStr Sacral Anatomical Orientation in the Lebanese Population
title_full_unstemmed Sacral Anatomical Orientation in the Lebanese Population
title_short Sacral Anatomical Orientation in the Lebanese Population
title_sort sacral anatomical orientation in the lebanese population
url http://dx.doi.org/10.1155/2020/4292384
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