• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Institut de Biomécanique Humaine Georges Charpak (IBHGC)
  • View Item
  • Home
  • Institut de Biomécanique Humaine Georges Charpak (IBHGC)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Global postural malalignment in adolescent idiopathic scoliosis: The axial deformity is the main driver

Article dans une revue avec comité de lecture
Author
KARAM, Mohamad
301405 Université Saint-Joseph de Beyrouth [USJ]
GHANEM, Ismat
301405 Université Saint-Joseph de Beyrouth [USJ]
ccVERGARI, Claudio
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
KHALIL, Nour
301405 Université Saint-Joseph de Beyrouth [USJ]
SAADE, Maria
301405 Université Saint-Joseph de Beyrouth [USJ]
CHAAYA, Céline
301405 Université Saint-Joseph de Beyrouth [USJ]
RTEIL, Ali
301405 Université Saint-Joseph de Beyrouth [USJ]
AYOUB, Elma
301405 Université Saint-Joseph de Beyrouth [USJ]
SAAD, Eddy
301405 Université Saint-Joseph de Beyrouth [USJ]
KHARRAT, Khalil
301405 Université Saint-Joseph de Beyrouth [USJ]
ccSKALLI, Wafa
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
ASSI, Ayman
301405 Université Saint-Joseph de Beyrouth [USJ]

URI
http://hdl.handle.net/10985/21536
DOI
10.1007/s00586-021-07101-x
Date
2022
Journal
European Spine Journal

Abstract

Purpose: To evaluate the global alignment of non-operated subjects with adolescent idiopathic scoliosis. Method: A total of 254 subjects with AIS and 64 controls underwent low dose biplanar X-rays and had their spine, pelvis, and rib cage reconstructed in 3D. Global alignment was measured in the sagittal and frontal planes by calculating the OD-HA angle (between C2 dens to hip axis with the vertical). Subjects with AIS were classified as malaligned if the OD-HA was > 95th percentile relative to controls. Results: The sagittal OD-HA in AIS remained within the normal ranges. In the frontal plane, 182 AIS were normally aligned (Group 1, OD-HA = 0.9°) but 72 were malaligned (Group 2, OD-HA = 2.9°). Group 2 had a more severe spinal deformity in the frontal and horizontal planes compared to Group 1 (Cobb: 42 ± 16° vs. 30 ± 18°; apical vertebral rotation AVR: 19 ± 10° vs. 12 ± 7°, all p < 0.05). Group 2 subjects were mainly classified as Lenke 5 or 6. 19/72 malaligned subjects had a mild deformity (Cobb < 30°) but a progressive scoliosis (severity index ≥ 0.6). The frontal OD-HA angle was found to be mainly determined (adjusted-R2 = 0.22) by the apical vertebral rotation and secondarily by the Lenke type. Conclusions: This study showed that frontal malalignment is more common in distal major structural scoliosis and its main driver is the apical vertebral rotation. This highlights the importance of monitoring the axial plane deformity in order to avoid worsening of the frontal global alignment.

Files in this item

Name:
IBHGC_ESJ_2022_KARAM.pdf
Size:
2.429Mb
Format:
PDF
Embargoed until:
2022-07-01
View/Open

Collections

  • Institut de Biomécanique Humaine Georges Charpak (IBHGC)

Related items

Showing items related by title, author, creator and subject.

  • Head and pelvis are the key segments recruited by adult spinal deformity patients during daily life activities 
    Article dans une revue avec comité de lecture
    AYOUB, Elma; ccRTEIL, Ali; ccCHAAYA, Celine; RACHKIDI, Rami; ccSAADE, Maria; JABER, Elena; ccMEKHAEL, Elio; NASSIM, Nabil; REHAYEM, Rami; KARAM, Mohammad; ccBIZDIKIAN, Aren Joe; ccGHANEM, Ismat; ccSKALLI, Wafa; ccMASSAAD, Abir; ASSI, Ayman (Springer Science and Business Media LLC, 2024-09)
    Functional assessment is a key element in evaluating adult spinal deformity (ASD) patients. The multitude of 3D kinematic parameters provided by movement analysis can be confusing for spine surgeons. The aim was to investigate ...
  • Kinematic limitations during stair ascent and descent in patients with adult spinal deformity 
    Article dans une revue avec comité de lecture
    ccFAKHOURY, Marc; RACHKIDI, Rami; SEMAAN, Karl; ABI KARAM, Krystel; SAADÉ, Maria; AYOUB, Elma; ccCHAAYA, Celine; ccRTEIL, Ali; JABER, Elena; ccMEKHAEL, Elio; NASSIM, Nabil; KARAM, Mohamad; ABINAHED, Julien; ccGHANEM, Ismat; MASSAAD, Abir; ASSI, Ayman (Elsevier BV, 2024-12)
    Background: Adults with spinal deformity (ASD) are known to have spinal malalignment, which can impact their quality of life and their autonomy in daily life activities. Among these tasks, ascending and descending stairs ...
  • Global Sagittal Angle and T9-tilt seem to be the most clinically and functionally relevant global alignment parameters in patients with Adult Spinal Deformity 
    Article dans une revue avec comité de lecture
    NASSIM, Nabil; ccMEKHAEL, Elio; RACHKIDI, Rami El; SAADE, Maria; AYOUB, Elma; ccRTEIL, Ali; JABER, Elena; ccCHAAYA, Celine; REHAYEM, Rami; ABI NAHED, Julien; KARAM, Mohamad; ccGHANEM, Ismat; ccMASSAAD, Abir; ASSI, Ayman (Elsevier BV, 2024-04)
    Introduction Radiographic analysis is necessary for the assessment and the surgical planning in adults with spinal deformity (ASD). Restoration of global alignment is key to improving patient's quality of life. However, ...
  • Weak trunk extensors in adult spinal deformity patients are related to sagittal malalignment and kinematic limitations 
    Article dans une revue avec comité de lecture
    SAADÉ, Maria; RACHKIDI, Rami; ccRTEIL, Ali; AYOUB, Elma; JABER, Elena; ccCHAAYA, Celine; NASSIM, Nabil; ccMEKHAEL, Elio; REHAYEM, Rami; NAHED, Julien Abi; RAMADAN, Bilal; KARAM, Mohamad; ccGHANEM, Ismat; MASSAAD, Abir; ASSI, Ayman (Elsevier BV, 2025-01)
    Background: Adult spinal deformity (ASD) is associated with muscles' degeneration that affects postural control and outcomes of an eventual corrective surgery. Evaluation of ASD is usually based on static radiographs and ...
  • Kinematic adaptations from self-selected to fast speed walking in patients with adult spinal deformity 
    Article dans une revue avec comité de lecture
    ABI KARAM, Krystel; ccEL RACHKIDI, Rami; SEMAAN, Karl; SAAD, Eddy; ccFAKHOURY, Marc; ccSAADE, Maria; AYOUB, Elma; ccRTEIL, Ali; JABER, Elena; ccMEKHAEL, Elio; NASSIM, Nabil; ccMASSAAD, Abir; ccGHANEM, Ismat; ASSI, Ayman (Springer Science and Business Media LLC, 2024-01)
    Purpose To investigate kinematic adaptations from self-selected to fast speed walking in ASD patients. Methods 115 primary ASD and 66 controls underwent biplanar radiographic X-rays and 3D gait analysis to calculate ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales