Alterations of 3D acetabular and lower limb parameters in adolescent idiopathic scoliosis
TypeArticles dans des revues avec comité de lecture
Purpose: To evaluate the 3D deformity of the acetabula and lower limbs in subjects with adolescent idiopathic scoliosis (AIS) and their relationship with spino-pelvic alignment. Methods: Two hundred and seventy-four subjects with AIS (frontal Cobb: 33.5° ± 18° [10°-110°]) and 84 controls were enrolled. All subjects underwent full-body biplanar X-rays with subsequent 3D reconstructions. Classic spino-pelvic and lower limb parameters were collected as well as acetabular parameters: acetabular orientation in the 3 planes (tilt, anteversion and abduction), center-edge angle (CEA) and anterior and posterior sector angles. Subjects with AIS were represented by both lower limb sides and classified by elevated (ES) or lowered (LS), depending on the frontal pelvic obliquity. Parameters were then compared between groups. Determinants of acetabular and lower limb alterations were investigated among spino-pelvic parameters. Results: Acetabular abduction was higher on the ES in AIS (59.2° ± 6°) when compared to both LS (55.6° ± 6°) and controls (57.5° ± 3.9°, p < 0.001). CEA and acetabular anteversion were higher on the LS in AIS (32° ± 6.1°, 20.5° ± 5.7°) when compared to both ES (28.7° ± 5.1°, 19.8° ± 5.1°) and controls (29.8° ± 4.8°, 19.1° ± 4°, respectively, p < 0.001). Anterior sector angle was lower on both ES and LS in AIS when compared to controls. CEA, acetabular abduction and acetabular anteversion were found to be mostly determined (adjusted R2: 0.08-0.32) by pelvic tilt and less by frontal pelvic obliquity, frontal Cobb and T1T12. Conclusions: Subjects with AIS had a more abducted acetabulum at the lowered side, more anteverted acetabulum and a lack of anterior coverage of both acetabula. These alterations were strongly related to pelvic tilt.
Files in this item
Showing items related by title, author, creator and subject.
LABAKI, Chris; OTAYEK, Joeffroy; MASSAAD, Abir; BAKOUNY, Ziad; KARAM, Mohammad; HANNA, Cyril; KASSAB, Anthony; BIZIDIKIAN, Aren Joe; MJAESS, Georges; KARAM, Aya; SKALLI, Wafa; GHANEM, Ismat; ASSI, Ayman (American Association of Neurological Surgeons, 2019)OBJECTIVE The aim of this study was to determine if the apical vertebra (AV) in patients with adolescent idiopathic scoliosis (AIS) is the most rotated vertebra in the scoliotic segment. METHODS A total of 158 patients ...
How do 3D skeletal parameters and demographics determine kinematic adaptation from normal to fast speed gait? MJAESS, Georges; KARAM, Aya; LABAKI, Chris; YARED, Fares; BIZDIKIAN, Aren Joe; BAKOUNY, Ziad; SKALLI, Wafa; GHANEM, Ismat; ASSI, Ayman (Elsevier, 2018)The occurrence of falls during gait in elderly people is an important source of morbidity . One of the useful screening tests for falls is the kinematic analysis of fast walking, that identiﬁes subjects with risk of ...
KARAM, Aya; LABAKI, Chris; MJAESS, Georges; BIZDIKIAN, Aren Joe; YARED, Fares; OTAYEK, Joeffroy; BAKOUNY, Ziad; GHANEM, Ismat; SKALLI, Wafa; ASSI, Ayman (ELSEVIER, 2018)Lower limb joints are subject to mechanical load during daily activities, such as gait, which is an important risk factor of osteoarthritis. Moreover, kinetics are known to be inﬂuenced by gait alterations in patients with ...
How does the variation of the 3D orientation of the acetabulum during walking influence hip kinematics? MJAESS, Georges; LABAKI, Chris; KARAM, Aya; BAKOUNI, Ziad; BIZDIKIAN, Aren Joe; OTAYEK, Joeffroy; YARED, Fares; SKALLI, Waffa; GHANEM, Ismat; ASSI, Ayman (ELSEVIER, 2018)Acetabular cup orientation is crucial for total hip arthroplasty (THA), and its malpositioning could lead to impingement and dislocation . Acetabular cup orientation currently relies on static 3D hip parameters  and ...
OTAYEK, Jeoffroy; BIZDIKIAN, Aren Joe; YARED, Fares; SAAD, Eddy; BAKOUNY, Ziad; MASSAAD, Abir; GHANIMEH, Joe; LABAKI, Chris; SKALLI, Wafa; ISMAT, Ghanem; KREICHATI, Gaby; ASSI, Ayman (ELSEVIER, 2020)Introduction: Postural alignment is altered with spine deformities that might occur with age. Alteration of spino-pelvic and postural alignment parameters are known to affect daily life activities such as gait. It is still ...