RT Journal Article SR Electronic T1 Revisiting Skeletal Dysplasias in the Newborn JF NeoReviews JO NeoReviews FD American Academy of Pediatrics SP e216 OP e229 DO 10.1542/neo.22-4-e216 VO 22 IS 4 A1 Langston, Seth J. A1 Krakow, Deborah A1 Chu, Alison YR 2021 UL http://neoreviews.aappublications.org/content/22/4/e216.abstract AB Abbreviations:CNP: C-type natriuretic peptideFGF: fibroblast growth factorFGFR3: fibroblast growth factor receptor 3FL/AC: femur length to abdominal circumferenceMRI: magnetic resonance imagingOI: osteogenesis imperfectaSD: standard deviationTD: thanatophoric dysplasiaU/L: upper segment to lower segmentWES: whole exome sequencingWith over 400 reported disorders, the skeletal dysplasias represent a myriad of molecularly-based skeletal abnormalities. Arising from errors in skeletal development, the clinical spectrum of disease evolves through an affected individual’s life. The naming and grouping of these disorders are ever-changing, but the fundamentals of diagnosis remain the same and are accomplished through a combination of prenatal ultrasonography and postnatal physical examination, radiography, and genetic analysis. Although some disorders are lethal in the perinatal and neonatal periods, other disorders allow survival into infancy, childhood, and even adulthood with relatively normal lives. The foundation of management for an affected individual is multidisciplinary care. Medical advances have offered new insights into reducing common morbidities through pharmacologic means. This review summarizes the normal skeletal development and discusses the 3 most common skeletal dysplasias that can affect the newborn.