LMNA and congenital muscular dystrophy due to LMNA mutation: In addition to EDMD, two other main groups of lamin-related skeletal muscle phenotypes have been distinguished: LMNA-related congenital muscular dystrophy (L-CMD; OMIM#613205) [51] which affects young children, and limb-girdle muscular dystrophy type 1 (LGMD1B; OMIM#159001) [52] with adult onset.