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Accurate Determination of Cast Weight for Neonates with Clubfoot

Stephan, Carsten M.D.; Herzenberg, John E. M.D., F.R.C.S.C.; Araujo, Flavio Fontenele M.D.

Journal of Pediatric Orthopaedics: March-April 2000 - Volume 20 - Issue 2 - p 230-233
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Summary: The purpose of this study was to determine changes in cast weight during the first 48 hours after application so that the true weight of a neonate can be estimated without the need for removing the cast. Five types of cast materials were compared. Cast weight measurements were obtained before and after application and at intervals during 48 hours. Final cast weight averaged 107.5% of dry weight for plaster and 99% of dry weight for synthetic cast materials. For very low birth weight infants, the difference between the initial wet weight of plaster of Paris and its final dry weight may be significant for calculating drug and fluid dosages. The weight of an infant can now be calculated without the necessity of cast removal.

Study conducted at the Maryland Center for Limb Lengthening and Reconstruction, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A.

From University Hospital Charité, Berlin, Germany; *University of Maryland, Baltimore, Maryland, U.S.A.; †Clinica Santo Antonio, Teresina, Brazil.

Address correspondence and reprint requests to Dr. J. E. Herzenberg, Maryland Center for Limb Lengthening and Reconstruction, Kernan Hospital, 2200 Kernan Drive, Baltimore, MD 21207, U.S.A. E-mail: jherzenberg@mcllr.ummc.ab.umd.edu

Copyright © 2000 Wolters Kluwer Health, Inc. All rights reserved.