1. Osteogenesis imperfecta (OI): The formation of brittle bones that fracture
easily
2. Achondroplasia: Bone deformity and dwarfism
3. Osteopetrosis: Also called "marble bone disease," results in increased
density of bone
4. Albers-Schonberg disease: A form of osteosclerotic osteopetrosis
5. Syndactyly: Fusion of digits, appears webbed
6. Polydactyly: Having extra digits
7. Clubfoot (Talipes Equinovarus): A birth defect where the foot is in
adduction, supination, and varus
8. Developmental dysplasia of the hip (DDH): Abnormal development of the
hip joint (acetabulum). Results in superoposterior dislocation
9. Scoliosis: Abnormal lateral curvature of the spine
10. Transitional vertebra: A vertebra that assumes the characteristics of the
vertebrae on each side of a major spine division
11. Spina bifida: Failure of lamina to unite posteriorly, incomplete closure of
vertebral canal
12. Scheuermann's disease: Juvenile kyphosis