Spine Grading: Pfirrmann / Modic / Meyerding — free guideline decision tool
Three core spine imaging grading systems in one tool: pick a system, then read out Pfirrmann (disc degeneration I–V), Modic (endplate changes I–III, auto-typed from T1/T2 signal) and Meyerding (lumbar spondylolisthesis I–V, auto-graded from percent slip). Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What does Spine Grading: Pfirrmann / Modic / Meyerding do?
Standardized grading for spine MRI/radiograph reports: disc degeneration, endplate marrow change type, and slip severity.
How is the result calculated?
Pfirrmann I–V (homogeneity / NP-annulus distinction / T2 signal / height). Modic: I = T1 hypo, T2 hyper (edema); II = T1 hyper, T2 hyper or iso (fat); III = T1 hypo, T2 hypo (sclerosis). Meyerding: I 0–25%, II 25–50%, III 50–75%, IV 75–100%, V >100% (spondyloptosis).
Is this a substitute for clinical judgement?
No. All results are decision-support only, for licensed clinicians. They must be individualized to the whole patient and the latest guideline version.
Run Spine Grading: Pfirrmann / Modic / Meyerding now
Three core spine imaging grading systems in one tool: pick a system, then read out Pfirrmann (disc degeneration I–V), Modic (endplate changes I–III, auto-typed from T1/T2 signal) and Meyerding (lumbar spondylolisthesis I–V, auto-graded from percent slip). Instant, browser-side.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.