Global sagittal alignment after surgery of right thoracic idiopathic scoliosis in adolescents and adults with and without thoracic hypokyphosis
Article dans une revue avec comité de lecture
AbstractThis study aimed to characterize global sagittal alignment in adolescent idiopathic scoliosis (AIS) with normal kyphosis (NTK, kyphosis > 10°) and with thoracic hypokyphosis (THK, kyphosis < 10°), before and after posterior spinal fusion, and compare them with asymptomatic controls. 27 AIS girls and young adults with right thoracic curves were included (seventeen with age ≤ 18 years, then age > 21). Biplanar radiographies were acquired at baseline, immediate post-operatively, 1-year and 2-year follow-up, and 3D reconstruction of the spine and pelvis was performed. NTK and THK showed different global sagittal alignment, as well as differences compared to controls. AIS with THK at baseline had higher SVA/SFD (2.0 ± 2.9 vs − 0.4 ± 1.9; P < 0.05) and OD-HA (0.2 ± 1.4° vs − 1.3 ± 1.6°; P < 0.05) than controls, indicating that THK had compensated balance with unusual forward leaning posture. Immediately post-operation, SVA/SFD remained high (1.3 ± 3.0) while OD-HA reversed (− 1.2 ± 1.7°), indicating that THK patients had found partially compensated balance. After 2-yeas, both SVA/SFD (− 1.3 ± 2.1) and OD-HA (− 1.4 ± 0.9°) were normalized. The changes in global sagittal alignment and mechanism of balance are different in AIS with or without THK. As the head plays a critical role on balance during immediate and delayed post-operation, OD-HA can be complementary parameter for assessing global balance during post-operative follow-up of AIS patients with THK.
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Article dans une revue avec comité de lectureHU, Zongshan; VERGARI, Claudio; GAJNY, Laurent; MAN, Gene Chi-Wai; YEUNG, Kwong-Hang; LIU, Zhen; LAM, Tsz-Ping; ZHU, Zezhang; QIU, Yong; CHU, Winnie Chiu-Wing; CHENG, Jack Chun-Yiu; SKALLI, Wafa (AME Publishing Company, 2022)Background: Balanced global spinopelvic balance is important in the maintenance of the physiological alignment of all body segments above the pelvis with minimum energy expenditure. The key determinants affecting the 3D ...
Comparison of 3D and 2D characterization of spinal geometry from biplanar X-rays: a large cohort study Article dans une revue avec comité de lectureHU, Zongshan; VERGARI, Claudio; GAJNY, Laurent; LIU, Zhen; LAM, Tsz-Ping; ZHU, Zezhang; QIU, Yong; MAN, Gene C. W.; YEUNG, Kwong-Hang; CHU, Winnie C. W.; CHENG, Jack C. Y.; SKALLI, Wafa (2021)Background: Biplanar X-ray system providing anteroposterior and sagittal plane with an ultra-low radiation dose and in weight-bearing position is increasingly used for spine imaging. The original three-dimensional (3D) ...
Effect of curve location on the severity index for adolescent idiopathic scoliosis: a longitudinal cohort study Article dans une revue avec comité de lectureVERGARI, Claudio; SKALLI, Wafa; ABELIN-GENEVOIS, Kariman; BERNARD, Jean Claude; HU, Zongshan; CHENG, Jack Chun Yiu; CHU, Winnie Chiu Wing; ASSI, Ayman; KARAM, Mohammad; GHANEM, Ismat; BASSANI, Tito; GALBUSERA, Fabio; SCONFIENZA, Luca Maria; BRAYDA-BRUNO, Marco; COURTOIS, Isabelle; EBERMEYER, Eric; VIALLE, Raphael; LANGLAIS, Tristan; DUBOUSSET, Jean (Springer Science and Business Media LLC, 2021)Objectives Adolescent idiopathic scoliosis (AIS) is the most common spinal disorder in children. A severity index was recently proposed to identify the stable from the progressive scoliosis at the first standardized ...
3D reconstruction of ribcage geometry from biplanar radiographs using a statistical parametric model approach Article dans une revue avec comité de lectureAUBERT, Benjamin; VERGARI, Claudio; ILHARREBORDE, Brice; COURVOISIER, Aurélien; SKALLI, Wafa (Taylor & Francis, 2014)Rib cage 3D reconstruction is an important prerequisite for thoracic spine modelling, particularly for studies of the deformed thorax in adolescent idiopathic scoliosis. This study proposes a new method for rib cage 3D ...
Rib Cage Measurement Reproducibility Using Biplanar Stereoradiographic 3D Reconstructions in Adolescent Idiopathic Scoliosis Article dans une revue avec comité de lecturePIETTON, Raphael; BOULOUSSA, Houssam; VERGARI, Claudio; SKALLI, Wafa; VIALLE, Raphaël (Lippincott, Williams & WilkinsWolters kluwer, 2020)Study design: A reproducibility study of preoperative rib cage 3D measurements was conducted for patients with Adolescent Idiopathic Scoliosis (AIS). Objective: to assess the reliability of rib cage 3D reconstructions using ...