A Novel Classification of 3D Rib Cage Deformity in Subjects With Adolescent Idiopathic Scoliosis
Article dans une revue avec comité de lecture
Study Design: This was a multicentric cross-sectional descriptive study. Objective: To analyze patterns of 3D rib cage deformity in subjects with adolescent idiopathic scoliosis (AIS) and their relationship with the spinal deformity. Summary of Background Data: Subjects with AIS present with rib cage deformity that can affect respiratory functions. The 3D rib cage deformities in AIS and their relationship to the spinal deformity are still unelucidated. Methods: A total of 200 AIS and 71 controls underwent low-dose biplanar x-rays and had their spine and rib cage reconstructed in 3-dimensional (D). Classic spinopelvic parameters were calculated in 3D and: rib cage gibbosity, thickness, width, volume and volumetric spinal penetration index (VSPI). Subjects with AIS were classified as: group I with mild rib cage deformity (n=88), group II with severe rib cage deformity (n=112) subgrouped into IIa (high gibbosity, n=48), IIb (high VSPI, n=48), and IIc (both high gibbosity and VSPI, n=16). Results: Groups IIa and IIb had a higher Cobb angle (33 vs. 54 degrees and 46 degrees, respectively) and torsion index (11 vs. 14 degrees and 13 degrees, respectively) than group I. Group IIb showed more severe hypokyphosis (IIb=21 degrees; IIa=33 degrees; I=36 degrees; control=42 degrees) with a reduced rib cage volume (IIb=4731 cm3; IIa=4985 cm3; I=5257 cm3; control=5254 cm3) and thickness (IIb=135 mm; IIa=148 mm; I=144 mm; control=144 mm). Group IIa showed an increasingly large local gibbosity descending from proximal to distal levels and did not follow the axial rotation of the spine. Group IIc showed characteristics of both groups IIa and IIb. Conclusions: This new classification of 3D rib cage deformity in AIS shows that the management of cases with high VSPI (groups IIb and IIc) should focus on restoring as much kyphosis as possible to avoid respiratory repercussions. Treatment indications in groups I and IIa would follow the consensual basic principles reported in the literature regarding bracing and surgery.
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Assessment of the axial plane deformity in subjects with adolescent idiopathic scoliosis and its relationship to the frontal and sagittal planes Article dans une revue avec comité de lectureKARAM, Mohamad; VERGARI, Claudio; SKALLI, Wafa; BIZDIKIAN, Aren Joe; MEHANNA, Joe; KAWKABANI, Georges; KHARRAT, Khalil; GHANEM, Ismat; ASSI, Ayman (Springer Science and Business Media LLC, 2021)Purpose Investigate the axial plane deformity in the scoliotic segment and its relationship to the deformity in the frontal and sagittal planes. Methods Two hundred subjects with AIS (Cobb ≥ 20°) underwent low dose biplanar ...
Global postural malalignment in adolescent idiopathic scoliosis: The axial deformity is the main driver Article dans une revue avec comité de lectureKARAM, Mohamad; GHANEM, Ismat; VERGARI, Claudio; KHALIL, Nour; SAADE, Maria; CHAAYA, Céline; RTEIL, Ali; AYOUB, Elma; SAAD, Eddy; KHARRAT, Khalil; SKALLI, Wafa; ASSI, Ayman (Springer, 2022)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, ...
Balance, barycentremetry and external shape analysis in idiopathic scoliosis: What can the physician expect from it? Article dans une revue avec comité de lectureLANGLAIS, Tristan; VERGARI, Claudio; ROUGEREAU, Grégoire; GAJNY, Laurent; ASSI, Ayman; GHANEM, Ismat; DUBOUSSET, Jean; VIALLE, Raphaël; PIETTON, Raphaël; SKALLI, Wafa (Elsevier BV, 2021)Objective: Our objective was to establish a corridor of normality for the external shape 3D parameters and then to assess these variables in adolescent idiopathic scoliosis (AIS). Methods: Adolescent with mild and severe ...
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 ...
Article dans une revue avec comité de lectureKARAM, Mohammad; BIZDIKIAN, Aren Joe; KHALIL, Nour; BAKOUNY, Ziad; OBEID, Ibrahim; GHANIMEH, Joe; LABAKI, Chris; MJAESS, Georges; KARAM, Aya; SKALLI, Wafa; KHARRAT, Khalil; GHANEM, Ismat; ASSI, Ayman (Springer Verlag, 2020)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 ...