EDSS 6.5 – Bilateral Support Walking 20m — SCE Neurology MCQ

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ModerateMultiple Sclerosis & CNS InflammationEDSS 6.5 – Bilateral Support Walking 20mSCE Neurology

A 55-year-old man with known MS has progressive lower limb weakness. His neurologist performs the Expanded Disability Status Scale (EDSS) assessment. His ambulation score determines the EDSS. At what EDSS level does the patient require constant bilateral support (two canes/crutches/walker) to walk 20 metres?

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Correct answer: C — EDSS 6.5

EDSS ambulatory milestones: 4.0 = fully ambulatory without aid for ≥500m; 4.5 = fully ambulatory for ≥300m; 5.0 = ambulatory for ≥200m without aid/rest; 5.5 = ambulatory for ≥100m without aid; 6.0 = walks with unilateral aid for ≥100m; 6.5 = walks with constant bilateral support for ≥20m; 7.0 = essentially wheelchair-bound; 7.5 = cannot take more than a few steps; 8.0 = restricted to bed/chair. A: Can walk 500m unaided. B: Can walk 200m unaided. D: Cannot take more than a few steps. E: Bed/chair restricted.

Reference: Kurtzke EDSS; NICE NG100