Congenital:Failure of formation, Failure of segmentation | Idiopathic:Infatile (0-3 years), Juvenile (3-10 years), Adolescent (10+ years) |
Neuromuscular: 1) Myopathic Arthrogryposis, Muscular dystrophy 2) Neuropathic Upper Motor Neurone, Lower Motor Neurone, Dysautonomia |
Others:Neurofibromatosis, Mesenchymal (Marfan’s, Ehler-Danlos), Traumatic, Tumors, Osteochondrodystrophies |