Duchenne muscular dystrophy classification

Duchenne muscular dystrophy Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Fahimeh Shojaei, M.D.

Overview

If the staging system involves specific and characteristic findings and features: According to the [staging system + reference], there are [number] stages of [malignancy name] based on the [finding1], [finding2], and [finding3]. Each stage is assigned a [letter/number1] and a [letter/number2] that designate the [feature1] and [feature2].

Classification

There is no established system for the classification of Duchenne muscular dystrophy but according to the Functional Classification System for DMD (AFCSD), there are 5 stages of Duchenne muscular dystrophy based on the gross Motor Function.

Stages	Explanation
Stage 1	Walks normally without any help
Stage 2	Impaired posture (lordosis), Impaired gait (tip-toeing or waddling), still doesn't need any assistive device and walks independently
Stage 3	Can only walk short distances with walker or crutch
Stage 4	Unable to walk but they can use powered mobility devices
Stage5	unable to walk, unable to use powered devices