gms | German Medical Science

54. Jahrestagung der Norddeutschen Orthopädenvereinigung e. V.

Norddeutsche Orthopädenvereinigung

16.06. bis 18.06.2005, Hamburg

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Comparative sonographic investigations according to Graf and Terjesen

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  • corresponding author A. Falliner - Universitätsklinikum Schleswig-Holstein, Campus Kiel, Orthopädische Universitätsklinik, Kiel
  • D. Schwinzer - Kiel
  • H. Hahne - Kiel
  • J. Hassenpflug - Kiel

Norddeutsche Orthopädenvereinigung. 54. Jahrestagung der Norddeutschen Orthopädenvereinigung e.V.. Hamburg, 16.-18.06.2005. Düsseldorf, Köln: German Medical Science; 2005. Doc05novEP14

The electronic version of this article is the complete one and can be found online at: http://www.egms.de/en/meetings/nov2005/05nov096.shtml

Published: June 13, 2005

© 2005 Falliner et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en). You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.

Outline

Text

Introduction

Comparison of two methods in the context of a hip-screening.

Methods

In the context of a prospektive hip-screening newborn children were examined sonographically by the methods of Graf and Terjesen. After a direct comparison of the measured values, in 50 hip joints the parameters α and FHC were determined of two examiners independently in order to determine the reproductibility of the measurements within the methods. With an "interobserver study" twelve examiners evaluated 24 pictures according to the Graf and Terjesen method, whereby in the statistic analysis the results of the first author are served as "gold standard ". For a "intraobserver study" 24 hip joints were evaluated by an examiner in a distance of two weeks altogether ten times.

Results

464 hips were examined. According to Graf 1.3%, according to Terjesen 4.1% pathological hip joints were found. The average α angle was 62,4°, the average FHC value 55.4%.

Both between all α -and FHC and in each case between the double examined α - and FHC there was a significant correlation. Neither with the interobserver study nor with the intraobserver study substantial differences between the two methods could be shown.The α - angle was the value to be determined most surely by all examiners.

Discussion

While Czubak (1998) postulated a better specificity of the method of Terjesen, in our opinion the results of Graf corresponde better with the well known frequency of 1-2% dysplasias in the population.

From all determined sonographic parameters the α - angle is the best to be reproduced.