Universität zu Köln

Schnurr, Christoph ORCID: 0000-0002-2129-7777, Schellen, Bernd, Dargel, Jens, Beckmann, Johannes, Eysel, Peer and Steffen, Reinhard (2017). Low Short-Stem Revision Rates: 1-11 Year Results From 1888 Total Hip Arthroplasties. J. Arthroplast., 32 (2). S. 487 - 494. PHILADELPHIA: CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS. ISSN 1532-8406

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Abstract

Background: In total hip arthroplasty, short stems were developed as a bone-conserving alternative to traditional cementless stems. So far, there have been very few recorded medium to long-term results of these comparatively new implants. The aim of our retrospective study was to report on the survival of calcar-loading short stems. Methods: All Metha stem implantations from 2004 to 2014 were recorded from the operation protocols (n = 1888). Due to the chronological development of the stem, 3 different versions were implanted: modular titanium stems with neck adapters from titanium or cobalt-chrome and monoblock stems. Patients were questioned by post about revision, dislocation, and satisfaction. Results: Data were complete for 93% of the procedures (1090 monoblock stems, 314 modular stems with titanium neck, and 230 modular stems with cobalt chrome neck). Mean follow-up was 6 years (1-11 years). Fifteen modular titanium implants were affected by cone fractures (4%). Therefore, monoblock, modular cobalt chrome, and modular titanium implants were analyzed separately. The 7-year revision rate for monoblock stems was 1.5%; for modular cobalt-chrome stems it was 1.8%, and for modular titanium stems it was 5.3%. Conclusion: Our data show the midterm survival of the monoblock and modular cobalt-chrome implants equivalent to the traditional cementless stems. These might, therefore, be considered as a bone-conserving alternative for young and active patients. (C) 2016 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schnurr, Christoph UNSPECIFIED orcid.org/0000-0002-2129-7777 UNSPECIFIED Schellen, Bernd UNSPECIFIED UNSPECIFIED UNSPECIFIED Dargel, Jens UNSPECIFIED UNSPECIFIED UNSPECIFIED Beckmann, Johannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Eysel, Peer UNSPECIFIED UNSPECIFIED UNSPECIFIED Steffen, Reinhard UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-241418
DOI:	10.1016/j.arth.2016.08.009
Journal or Publication Title:	J. Arthroplast.
Volume:	32
Number:	2
Page Range:	S. 487 - 494
Date:	2017
Publisher:	CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
Place of Publication:	PHILADELPHIA
ISSN:	1532-8406
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ANATOMIC CEMENTLESS STEM; FOLLOW-UP; REPLACEMENT; THA; IMPLANTS; MINIMUM; 10-YEAR Multiple languages Orthopedics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/24141