Prevalence of lumbar high-intensity zone: assessment using a screening tool independent of spinal symptoms

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dc.contributor.authorCampos, Mauricio
dc.contributor.authorVial, Raimundo
dc.contributor.authorCastro, Javier
dc.contributor.authorUrrutia, Julio
dc.date.accessioned2025-01-23T19:47:13Z
dc.date.available2025-01-23T19:47:13Z
dc.date.issued2019
dc.description.abstractHigh-intensity zone is an area of high-intensity signal within the posterior annulus fibrosus observed in magnetic resonance imaging; initially described in painful discs, recent studies have described similar prevalence in symptomatic and asymptomatic subjects. Since its' prevalence in the general population has not been established, we used a screening tool independent of spinal symptoms to determine high-intensity zone prevalence. We studied 217 patients evaluated with abdominal-pelvic magnetic resonance imaging; we looked for high-intensity zone, disc degeneration, spondylolysis, spondylolisthesis, Modic changes and scoliosis. We determined if these variables, age and sex affected the presence of high-intensity zone; through a logistic regression analysis we evaluated their independent effect. Patients' mean age was 56.3 +/- 17.4 years; 66.8% were females. Prevalence of high-intensity zone (11.06%) was larger in males (18.06%) than females (7.59%), p = 0.02. Patients with and without high-intensity zone did not differ in age or presence of scoliosis. High-intensity zone was more frequent in degenerated discs, but not in levels with spondylolisis, spondylolisthesis or Modic changes. Male sex (OR = 2.3, 1.04-5.38) and disc degeneration (OR = 6.76, 1.77-25.81) independently influenced the presence of high-intensity zone.
dc.description.abstractThe prevalence of high-intensity zone in this sample of the general population, including 217 subjects, was 11.06%. Similarly, a recent meta-analysis mentioned a 9.5% prevalence in asymptomatic subjects; on the other hand it stressed a 10.4% prevalence in symptomatic subjects. All these data do not plead for a strict correlation between high-intensity zone and low hack pain complaints.
dc.fuente.origenWOS
dc.identifier.issn0001-6462
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100360
dc.identifier.wosidWOS:000482220500006
dc.issue.numero1
dc.language.isoen
dc.pagina.final53
dc.pagina.inicio47
dc.revistaActa orthopaedica belgica
dc.rightsacceso restringido
dc.subjectHigh-intensity zone
dc.subjectdisc degeneration
dc.subjectprevalence study
dc.subjectlumbar spine
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titlePrevalence of lumbar high-intensity zone: assessment using a screening tool independent of spinal symptoms
dc.typeartículo
dc.volumen85
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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