Postnatal growth of the clavicle: birth to 18 years of age.

Journal of Pediatric Orthopedics
Molly A McGrawCassie L Kirby

Abstract

The purpose of our study was to perform a large cross-sectional study aimed at determining the postnatal growth pattern of the clavicle from birth to 18 years of age. We analyzed the digital chest radiographs of a convenience sample of 961 individuals between birth and 18 years of age. Malrotated radiographs were excluded. Right and left clavicle lengths were measured in millimeters from the most lateral ossified border to the most medial ossified border of each clavicle. Study patients were divided into 19 subgroups with the first group being labeled as "birth to 11 months of age" followed by 1-year-olds, 2-year olds, etc. Patients were also grouped by sex. There was a minimum of 25 patients in each group. At 18 years of age the mean+/-SD clavicle length for females was 149+/-12 mm and for males it was 161+/-11 mm. Although a statistically significant difference (P=0.049) was noted between the length of right and left clavicles it was not clinically significant (0.036 mm). A steady growth rate was noted for both genders from birth to the age of 12 years (8.4 mm/y). Above the age of 12 years there were significant differences in the growth of the clavicles of girls (2.6 mm/y) versus boys (5.4 mm/y) (P<0.001). Our data suggest t...Continue Reading

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Citations

Sep 10, 2014·Journal of Plastic, Reconstructive & Aesthetic Surgery : JPRAS·Christoph HeidtAlexander Joeris
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