Reliability assessment of cervical spine parameters measured on full-body radiographs in asymptomatic subjects and patients with spinal deformity.
Orthop Traumatol Surg Res
; 107(7): 103026, 2021 11.
Article
em En
| MEDLINE
| ID: mdl-34329761
ABSTRACT
BACKGROUND:
Cervical spinal alignment is usually assessed on full-body radiographs allowing for the concomitant evaluation of possible compensatory mechanisms that may occur at any level in the setting of postural malalignment.HYPOTHESIS:
Cervical parameters measured on full-body radiographs are reliable. PATIENTS ANDMETHODS:
A total of 70 subjects were included and divided in 3 groups asymptomatic adults (n=21), adolescents with idiopathic scoliosis (n=20), and adults with spinal deformity (n=29), for whom full-body low-dose biplanar radiographs were obtained. Eighteen cervical parameters including gaze and cervical curvature, upper cervical spine, global cervical alignment, thoraco-cervical and cervico-pelvic parameters were measured by 4 operators, three times each. The intraclass correlation coefficient (ICC) and the 95% confidence interval (95% CI) where calculated for each parameter and compared between the 3 groups.RESULTS:
ICC and the 95% CI were similar between the 3 groups. The measured parameters showed a very high repeatability (ICC>0.8) except for C0-C2, which presented an average repeatability (ICC=0.57). The cSVA, CTPA, C2-SPi, cranial offset, T1-SPi, CBVA and cranial tilt had a 95% CI<2 (° or cm). The TIA, T1-CL and C0-C2 had a 95% CI>6°.DISCUSSION:
The poor visibility of the foramen magnum, hard palate, C7, T1, and the sternum on radiographs could explain why certain parameters showed a higher measurement error. The assessment of these error margins is essential for an accurate evaluation of cervical spinal deformities and a proper therapeutic approach. LEVEL OF EVIDENCE III; retrospective analysis of prospectively collected data.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Escoliose
/
Lordose
Tipo de estudo:
Observational_studies
Limite:
Adolescent
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Adult
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Humans
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article