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Validation of a newly developed mini-knemometer for premature infants

A newly developed knemometric device for lower leg length measurement in premature and newborn infants is presented and validated. The present study was performed to establish a standardized method of use of this instrument. Two independent observers obtained 10 subsequential readings per measuremen...

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Bibliographic Details
Main Authors: Rotzoll, Daisy E. (Author) , Pflüger, Marlene Sabine (Author) , Thiele, Antje Martina (Author) , Linderkamp, Otwin (Author)
Format: Article (Journal)
Language:English
Published: 1999
In: Annals of human biology
Year: 1999, Volume: 26, Issue: 3, Pages: 259-266
ISSN:1464-5033
DOI:10.1080/030144699282769
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1080/030144699282769
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Author Notes:D.E. Kaempf, M.S. Pflüger, A.M. Thiele and O. Linderkamp
Description
Summary:A newly developed knemometric device for lower leg length measurement in premature and newborn infants is presented and validated. The present study was performed to establish a standardized method of use of this instrument. Two independent observers obtained 10 subsequential readings per measurement in three infants over 43 days, after which analysis showed that 5 subsequential readings per measurement gave comparable technical errors. Thirty-one premature infants were assessed by knemometry by two independent observers. The correlation coefficient of all measurements was 0.998. The acquired technical error (mean Standard Deviation (SD) of 5 sequential readings) over a total observation period of 294 days in all studied infants was 0.06 and 0.05mm, respectively. By a mean lower leg length growth velocity of 0.52mm per day the technical error amounted to 11% of daily bone growth. The described mini-knemometer is an accurate device for the detection of daily individual growth. A learning period of 21 days is necessary to obtain reliable results.
Item Description:Published online: 09 Jul 2009
Gesehen am 11.01.2021
Physical Description:Online Resource
ISSN:1464-5033
DOI:10.1080/030144699282769

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