Universität zu Köln

Boese, Christoph Kolja, Jostmeier, Janine, Oppermann, Johannes, Dargel, Jens, Chang, De-Hua, Eysel, Peer and Lechler, Philipp (2016). The neck shaft angle: CT reference values of 800 adult hips. Skeletal Radiol., 45 (4). S. 455 - 464. NEW YORK: SPRINGER. ISSN 1432-2161

Full text not available from this repository.

Abstract

A precise understanding of the radiological anatomy and biomechanics as well as reliable reference values of the hip are essential. The primary goal of this study was to provide reference values of the neck-shaft angle (NSA) for adult patients based on the analysis of rotation corrected computed tomography (CT) scans of 800 hips. The secondary aim was to compare these measurements with simulated anteroposterior roentgenograms of the pelvis. Pelvic CT scans of 400 patients (54.3 years, range 18-100 years; 200 female) were reconstructed in the derotated coronal plane of the proximal femur and as CT-based simulated anteroposterior roentgenograms of the pelvis in the anterior pelvic plane. Femora were categorized as coxa vara (< 120A degrees), physiologic (a parts per thousand yen120A degrees to < 135A degrees), and coxa valga (a parts per thousand yen135A degrees). Intra- and inter-rater reliability were analyzed. Primary research question: Mean NSA for male adults was 129.6A degrees (range 113.2A degrees-148.2A degrees; SD 5.9A degrees) and 131.9A degrees (range 107.1A degrees-151.9A degrees; SD 6.8A degrees) for females in derotated coronal reconstructions. Age (p < 0.001 in both views) and sex influenced the NSA significantly (p = 0.002 and p < 0.001); no significant differences were found between sides (p = 0.722 and p = 0.955). Overall, an excellent reliability of repeated measurements of one or two observers was found (ICC 0.891-0.995). Secondary research question: NSA values measured in the simulated anteroposterior roentgenogram and the rotation corrected coronal reconstruction differed significantly (p < 0.001). While anteroposterior pelvis radiographs are susceptible to rotational errors, the coronal reconstruction of the proximal femur in the femoral neck plane allows the correct measurement of the NSA.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Boese, Christoph Kolja UNSPECIFIED UNSPECIFIED UNSPECIFIED Jostmeier, Janine UNSPECIFIED UNSPECIFIED UNSPECIFIED Oppermann, Johannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Dargel, Jens UNSPECIFIED UNSPECIFIED UNSPECIFIED Chang, De-Hua UNSPECIFIED UNSPECIFIED UNSPECIFIED Eysel, Peer UNSPECIFIED UNSPECIFIED UNSPECIFIED Lechler, Philipp UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-280906
DOI:	10.1007/s00256-015-2314-2
Journal or Publication Title:	Skeletal Radiol.
Volume:	45
Number:	4
Page Range:	S. 455 - 464
Date:	2016
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1432-2161
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ANTEROPOSTERIOR RADIOGRAPHS; FEMORAL OFFSET; RELIABILITY Multiple languages Orthopedics; Radiology, Nuclear Medicine & Medical Imaging Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/28090