This prospective study asked how often lumbar MRI looks abnormal in people who have never had back pain, sciatica, or neurogenic claudication. 67 volunteers underwent 1.5T MRI interpreted independently by three blinded neuroradiologists. The goal was to establish the prevalence of MRI abnormalities in a truly asymptomatic population.
A 62-year-old with chronic low back pain gets an MRI showing disc herniation at L4–5 and mild stenosis. This paper tells you why that report is not enough to take her to the OR. When you see MRI findings in a patient over 60, remember that 57% of asymptomatic adults in that age group have the same findings. The scan tells you what is there, not what is causing the pain.
The clinical rule this paper establishes: imaging findings must be strictly correlated with age and clinical signs and symptoms before operative treatment is considered. If the exam doesn't match the image, the image is not the diagnosis.
This principle was extended and reinforced by Jensen et al. (NEJM, 1994), who found similar rates in a larger cohort — together these papers are why modern spine guidelines require clinical-radiographic concordance before listing a patient for surgery.
This prospective study asked how often lumbar MRI looks abnormal in people who have never had back pain, sciatica, or neurogenic claudication. 67 volunteers underwent 1.5T MRI interpreted independently by three blinded neuroradiologists. The goal was to establish the prevalence of MRI abnormalities in a truly asymptomatic population.
A 62-year-old with chronic low back pain gets an MRI showing disc herniation at L4–5 and mild stenosis. This paper tells you why that report is not enough to take her to the OR. When you see MRI findings in a patient over 60, remember that 57% of asymptomatic adults in that age group have the same findings. The scan tells you what is there, not what is causing the pain.
The clinical rule this paper establishes: imaging findings must be strictly correlated with age and clinical signs and symptoms before operative treatment is considered. If the exam doesn't match the image, the image is not the diagnosis.
This principle was extended and reinforced by Jensen et al. (NEJM, 1994), who found similar rates in a larger cohort — together these papers are why modern spine guidelines require clinical-radiographic concordance before listing a patient for surgery.