Universität zu Köln

Boese, Christoph Kolja, Dargel, Jens, Oppermann, Johannes, Eysel, Peer, Scheyerer, Max Joseph, Bredow, Jan and Lechler, Philipp (2016). The femoral neck-shaft angle on plain radiographs: a systematic review. Skeletal Radiol., 45 (1). S. 19 - 29. NEW YORK: SPRINGER. ISSN 1432-2161

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Abstract

The femoral neck-shaft angle (NSA) is an important measure for the assessment of the anatomy of the hip and planning of operations. Despite its common use, there remains disagreement concerning the method of measurement and the correction of hip rotation and femoral version of the projected NSA on conventional radiographs. We addressed the following questions: (1) What are the reported values for NSA in normal adult subjects and in osteoarthritis? (2) Is there a difference between non-corrected and rotation-corrected measurements? (3) Which methods are used for measuring the NSA on plain radiographs? (4) What could be learned from an analysis of the intra- and interobserver reliability? A systematic literature search was performed including 26 publications reporting the measurement of the NSA on conventional radiographs. The mean NSA of healthy adults (5,089 hips) was 128.8A degrees (98-180A degrees) and 131.5A degrees (115-155A degrees) in patients with osteoarthritis (1230 hips). The mean NSA was 128.5A degrees (127-130.5A degrees) for the rotation-corrected and 129.5A degrees (119.6-151A degrees) for the non-corrected measurements. Our data showed a high variance of the reported neck-shaft angles. Notably, we identified the inconsistency of the published methods of measurement as a central issue. The reported effect of rotation-correction cannot be reliably verified.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Boese, Christoph Kolja UNSPECIFIED UNSPECIFIED UNSPECIFIED Dargel, Jens UNSPECIFIED UNSPECIFIED UNSPECIFIED Oppermann, Johannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Eysel, Peer UNSPECIFIED UNSPECIFIED UNSPECIFIED Scheyerer, Max Joseph UNSPECIFIED UNSPECIFIED UNSPECIFIED Bredow, Jan UNSPECIFIED UNSPECIFIED UNSPECIFIED Lechler, Philipp UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-293582
DOI:	10.1007/s00256-015-2236-z
Journal or Publication Title:	Skeletal Radiol.
Volume:	45
Number:	1
Page Range:	S. 19 - 29
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 TOTAL HIP-ARTHROPLASTY; PROXIMAL FEMUR; ROENTGENOGRAPHIC EVALUATION; CEREBRAL-PALSY; ANATOMIC BASIS; RELIABILITY; OSTEOARTHRITIS; MORPHOLOGY; FRACTURE; JOINT Multiple languages Orthopedics; Radiology, Nuclear Medicine & Medical Imaging Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/29358