Limb-girdle muscular dystrophies: An update

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Limb-girdle muscular dystrophies (LGMDs) are a heterogenous group of genetically driven muscle disorders, which share the two common features of progressive, predominantly proximal girdle skeletal muscle involvement and dystrophic changes on pathology. This is a rapidly expanding landscape in neurology both in relation to diagnosis as well as evolving targeted treatment options. Thirty-one LGMD subtypes are described to date; five of autosomal dominant inheritance and 26 of autosomal recessive transmission. This article describes their pathogenesis, clinical presentation, diagnosis and recent therapeutic advances.