Physiologic Subperiosteal New Bone Formation: Prevalence, Distribution, and Thickness in Neonates and Infants
David S. Kwon1,2,
Melissa R. Spevak1,3,
Kenneth Fletcher4 and
Paul K. Kleinman1,5
1 Department of Radiology and Imaging Center for Child Abuse and Neglect, UMass
Memorial Health Care, 55 Lake Ave. N., Worcester, MA 01655.
2 Present address: Department of Radiology, Hallmark HealthMelrose
Wakefield Campus, 585 Lebanon St., Melrose, MA 02176.
3 Present address: Department of Radiology, Johns Hopkins Hospital, 600 N. Wolfe
St., Baltimore, MD 21287.
4 Department of Psychiatry, University of Massachusetts Medical School, 55 Lake
Ave. N., Worcester, MA 01655.
5 Present address: Department of Radiology, Children's HospitalBoston,
300 Longwood Ave., Boston, MA 02115.

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Fig. 1. Method of measuring subperiosteal new bone formation is
illustrated. Radiograph (left side of figure) of 3-month-old infant shows
subperiosteal new bone formation along medial aspect of right tibia. Right
side of figure is magnified view with superimposed ruler simulating ocular
magnification system used in study. subperiosteal new bone formation in this
infant measures 1.8 mm, a common measurement finding. Div = division.
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