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Spine slenderness is not an early sign of progression in adolescent idiopathic scoliosis

Article dans une revue avec comité de lecture
Author
ccVERGARI, Claudio
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
SKALLI, Wafa
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
ABELIN-GENEVOIS, Kariman
90015 Department of Orthopaedic Surgery
353860 Centre Hospitalier Lyon Sud [CHU - HCL] [CHLS]
503981 Croix rouge française
BERNARD, Jean-Claude
353860 Centre Hospitalier Lyon Sud [CHU - HCL] [CHLS]
503981 Croix rouge française
90015 Department of Orthopaedic Surgery
HU, Zongshan
93116 The Chinese University of Hong Kong [Hong Kong]
CHENG, Jack Chun Yiu
93116 The Chinese University of Hong Kong [Hong Kong]
CHU, Winnie Chiu Wing
93116 The Chinese University of Hong Kong [Hong Kong]
ccASSI, Ayman
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
1001024 Laboratoire de biomécanique [LBM]
301405 Université Saint-Joseph de Beyrouth [USJ]
KARAM, Mohammad
301405 Université Saint-Joseph de Beyrouth [USJ]
GHANEM, Ismat
301405 Université Saint-Joseph de Beyrouth [USJ]
BASSANI, Tito
1004551 IRCCS Istituto Ortopedico Galeazzi
GALBUSERA, Fabio
1004551 IRCCS Istituto Ortopedico Galeazzi
SCONFIENZA, Luca Maria
300694 Università degli Studi di Milano = University of Milan [UNIMI]
1004551 IRCCS Istituto Ortopedico Galeazzi
BRAYDA-BRUNO, Marco
1004551 IRCCS Istituto Ortopedico Galeazzi
COURTOIS, Isabelle
51335 Centre Hospitalier Universitaire de Saint-Etienne [CHU de Saint-Etienne]
EBERMEYER, Eric
51335 Centre Hospitalier Universitaire de Saint-Etienne [CHU de Saint-Etienne]
VIALLE, Raphael
183200 Hôpital Trousseau
413221 Sorbonne Université [SU]
462028 Service de pédiatrie orthopédique [CHU Trousseau]
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
LANGLAIS, Tristan
413221 Sorbonne Université [SU]
462028 Service de pédiatrie orthopédique [CHU Trousseau]
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
DUBOUSSET, Jean
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]

URI
http://hdl.handle.net/10985/23045
DOI
10.1016/j.medengphy.2022.103879
Date
2022-08
Journal
Medical Engineering and Physics

Abstract

Adolescent idiopathic scoliosis (AIS) is a three-dimensional deformity of the spine. Spine slenderness, which represents its potential instability to buckling under compressive loads, was shown to be higher in AIS patients than non-scoliotic subjects, but it is not clear at what stage of the progression this difference appeared, nor if slenderness could be used as an early sign of progression. In this study, we hypothesized that slenderness could be an early sign of progression. One-hundred thirty-eight patients and 93 non-scoliotic subjects were included. They underwent standing biplanar radiography and 3D reconstruction of the spine, which allowed computing vertebra and disc slenderness ratio. Then, patients were followed until progression of the deformity or skeletal maturity (stable patients). Vertebral slenderness ratio in AIS patients varied between 2.9 [2.7; 3.0] (T9) and 3.4 [3.2; 3.6] (T1), while disc slenderness ranged from 0.6 [0.6; 0.7] at T6-T7 to 1.2 [1.1; 1.3] at L4-L5. Slenderness ratio increased with age, while disc slenderness tended to decrease with age and Cobb angle. Slenderness was similar between progressive and stable patients, and also between patients and non-scoliotic subjects. In conclusion, spinal slenderness does not appear to be an early sign of progression. Further studies should analyse the development of slenderness during growth, and how it could be affected by non-operative treatment.

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