Assessment of malalignment at early stage in adolescent idiopathic scoliosis : a longitudinal cohort study
© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature..
INTRODUCTION: Our objective was to assess abnormalities of the odontoid-hip axis (OD-HA) angle in a mild scoliotic population to determine whether screening for malalignment would help predict the distinction between progressive and stable adolescent idiopathic scoliosis (AIS) at early stage.
MATERIALS AND METHODS: All patients (non-scoliotic and AIS) underwent a biplanar X-ray between 2013 and 2020. In AIS, inclusion criteria were Cobb angle between 10° and 25°; Risser sign lower than 3; age higher than 10 years; and no previous treatment. A 3D spine reconstruction was performed, and the OD-HA was computed automatically. A reference corridor for OD-HA values in non-scoliotic subjects was calculated as the range [5th-95th percentiles]. A severity index, helping to distinguish stable and progressive AIS, was calculated and weighted according to the OD-HA value.
RESULTS: Eighty-three non-scoliotic and 205 AIS were included. The mean coronal and sagittal OD-HA angles in the non-scoliotic group were 0.2° and -2.5°, whereas in AIS values were 0.3° and -0.8°, respectively. For coronal and sagittal OD-HA, 27.5% and 26.8% of AIS were outside the reference corridor compared with 10.8% in non-scoliotic (OR = 3.1 and 3). Adding to the severity index a weighting factor based on coronal OD-HA, for thoracic scoliosis, improved the positive predictive value by 9% and the specificity by 13%.
CONCLUSION: Analysis of OD-HA suggests that AIS patients are almost three times more likely to have malalignment compared with a non-scoliotic population. Furthermore, analysis of coronal OD-HA is promising to help the clinician distinguish between stable and progressive thoracic scoliosis.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:33 |
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| Enthalten in: |
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society - 33(2024), 4 vom: 01. Apr., Seite 1665-1674 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Langlais, Tristan [VerfasserIn] |
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| Links: |
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| Themen: |
Adolescent |
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| Anmerkungen: |
Date Completed 08.04.2024 Date Revised 08.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1007/s00586-024-08178-w |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM368975827 |
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| 245 | 1 | 0 | |a Assessment of malalignment at early stage in adolescent idiopathic scoliosis |b a longitudinal cohort study |
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| 520 | |a © 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. | ||
| 520 | |a INTRODUCTION: Our objective was to assess abnormalities of the odontoid-hip axis (OD-HA) angle in a mild scoliotic population to determine whether screening for malalignment would help predict the distinction between progressive and stable adolescent idiopathic scoliosis (AIS) at early stage | ||
| 520 | |a MATERIALS AND METHODS: All patients (non-scoliotic and AIS) underwent a biplanar X-ray between 2013 and 2020. In AIS, inclusion criteria were Cobb angle between 10° and 25°; Risser sign lower than 3; age higher than 10 years; and no previous treatment. A 3D spine reconstruction was performed, and the OD-HA was computed automatically. A reference corridor for OD-HA values in non-scoliotic subjects was calculated as the range [5th-95th percentiles]. A severity index, helping to distinguish stable and progressive AIS, was calculated and weighted according to the OD-HA value | ||
| 520 | |a RESULTS: Eighty-three non-scoliotic and 205 AIS were included. The mean coronal and sagittal OD-HA angles in the non-scoliotic group were 0.2° and -2.5°, whereas in AIS values were 0.3° and -0.8°, respectively. For coronal and sagittal OD-HA, 27.5% and 26.8% of AIS were outside the reference corridor compared with 10.8% in non-scoliotic (OR = 3.1 and 3). Adding to the severity index a weighting factor based on coronal OD-HA, for thoracic scoliosis, improved the positive predictive value by 9% and the specificity by 13% | ||
| 520 | |a CONCLUSION: Analysis of OD-HA suggests that AIS patients are almost three times more likely to have malalignment compared with a non-scoliotic population. Furthermore, analysis of coronal OD-HA is promising to help the clinician distinguish between stable and progressive thoracic scoliosis | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Adolescent | |
| 650 | 4 | |a Biplanar X-ray | |
| 650 | 4 | |a Early diagnosis | |
| 650 | 4 | |a Scoliosis | |
| 700 | 1 | |a Vergari, Claudio |e verfasserin |4 aut | |
| 700 | 1 | |a Rougereau, Gregoire |e verfasserin |4 aut | |
| 700 | 1 | |a Gaume, Mathilde |e verfasserin |4 aut | |
| 700 | 1 | |a Gajny, Laurent |e verfasserin |4 aut | |
| 700 | 1 | |a Abelin-Genevois, Kariman |e verfasserin |4 aut | |
| 700 | 1 | |a Bernard, Jean Claude |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Zongshan |e verfasserin |4 aut | |
| 700 | 1 | |a Cheng, Jack Chun Yiu |e verfasserin |4 aut | |
| 700 | 1 | |a Chu, Winnie Chiu Wing |e verfasserin |4 aut | |
| 700 | 1 | |a Assi, Ayman |e verfasserin |4 aut | |
| 700 | 1 | |a Karam, Mohamad |e verfasserin |4 aut | |
| 700 | 1 | |a Ghanem, Ismat |e verfasserin |4 aut | |
| 700 | 1 | |a Bassani, Tito |e verfasserin |4 aut | |
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| 700 | 1 | |a Sconfienza, Luca Maria |e verfasserin |4 aut | |
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| 700 | 1 | |a Dubousset, Jean |e verfasserin |4 aut | |
| 700 | 1 | |a Skalli, Wafa |e verfasserin |4 aut | |
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