This review examines how discogenic low back pain, pain originating from the disc itself, is diagnosed, and looks at whether blood-based biomarker tests could offer an easier diagnostic method in future. It surveys current clinical and imaging approaches.
What was studied?
The review compared diagnostic tools for discogenic pain, including clinical signs, MRI features, discography, ultrasound and inflammatory blood markers, and how often chronic low back pain can be traced to a specific cause.
What did they find?
Discogenic pain accounts for around 39% of chronic low back pain, more than disc herniation at 30%, making it the single most common identifiable cause. Only about 20% of low back pain cases overall can be confidently linked to one source.
Why it matters
This explains why back pain diagnosis can feel uncertain: even for specialists, a confident anatomical diagnosis is only possible in a minority of cases.
Why we included it
It illustrates why focusing on function and treatment response, rather than chasing a precise anatomical label, reflects the genuine limits of what current diagnostic tools can establish.
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What was studied?
The review compared diagnostic tools for discogenic pain, including clinical signs, MRI features, discography, ultrasound and inflammatory blood markers, and how often chronic low back pain can be traced to a specific cause.
What did they find?
Discogenic pain accounts for around 39% of chronic low back pain, more than disc herniation at 30%, making it the single most common identifiable cause. Only about 20% of low back pain cases overall can be confidently linked to one source.
Why it matters
This explains why back pain diagnosis can feel uncertain: even for specialists, a confident anatomical diagnosis is only possible in a minority of cases.
Why we included it
It illustrates why focusing on function and treatment response, rather than chasing a precise anatomical label, reflects the genuine limits of what current diagnostic tools can establish.