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The Modified Femoral Neck-Shaft Angle: Age- and Sex-Dependent Reference Values and Reliability Analysis
Joint Authors
Eysel, P.
Boese, C. K.
Lechler, Philipp
Jostmeier, Janine
Haneder, Stefan
Dargel, Jens
Frink, Michael
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-14
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Background.
The femoral neck-shaft angle (NSA) is of high importance for the diagnostics and treatment of various conditions of the hip.
However, rotational effects limit its precision and applicability using plain radiographs.
This study introduces a novel method to measure the femoral NSA: the modified NSA (mNSA), possibly being less susceptible against rotational effects compared to the conventional NSA.
Patients and Methods.
The method of measurement is described and its applicability was tested in 400 pelvis computed tomography scans (800 hips).
Age- and gender-dependent reference values are given and intra- and interrater reliability are analyzed.
Results.
The mean age of all 400 patients (800 hips) was 54.32 years (18–100, SD 22.05 years).
The mean mNSA was 147.0° and the 95% confidence interval was 146.7°–147.4°.
Differences of the mNSA between sexes, age groups, and sides were nonsignificant.
The absolute difference between NSA and mNSA was 16.3° (range 3–31°; SD 4.4°); the correlation was high (0.738; p<0.001).
Overall, the intra- and interrater reliability were excellent for the mNSA.
Interpretation.
We introduced a novel concept for the analysis of the neck-shaft angle.
The high reliability of the measurement has been proven and its robustness to hip rotation was demonstrated.
American Psychological Association (APA)
Boese, C. K.& Frink, Michael& Jostmeier, Janine& Haneder, Stefan& Dargel, Jens& Eysel, P.…[et al.]. 2016. The Modified Femoral Neck-Shaft Angle: Age- and Sex-Dependent Reference Values and Reliability Analysis. BioMed Research International،Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1099108
Modern Language Association (MLA)
Boese, C. K.…[et al.]. The Modified Femoral Neck-Shaft Angle: Age- and Sex-Dependent Reference Values and Reliability Analysis. BioMed Research International No. 2016 (2016), pp.1-7.
https://search.emarefa.net/detail/BIM-1099108
American Medical Association (AMA)
Boese, C. K.& Frink, Michael& Jostmeier, Janine& Haneder, Stefan& Dargel, Jens& Eysel, P.…[et al.]. The Modified Femoral Neck-Shaft Angle: Age- and Sex-Dependent Reference Values and Reliability Analysis. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1099108
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1099108