Universität zu Köln

Schnurr, Christoph ORCID: 0000-0002-2129-7777, Guedden, Isabell, Eysel, Peer and Koenig, Dietmar Pierre (2012). Influence of computer navigation on TKA revision rates. Int. Orthop., 36 (11). S. 2255 - 2261. NEW YORK: SPRINGER. ISSN 0341-2695

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Abstract

We performed this study to determine whether the use of imageless navigation reduces revision rates after total knee arthroplasty (TKA). Data of 1,121 consecutive primary TKA with a follow-up of one to six years were retrospectively analysed. Following the conversion of the standard technique from conventional to navigated procedures, these data included the last 342 conventional and first 779 navigated procedures performed in our clinic. Demographic and perioperative covariates were recorded. All patients were asked by post to report instances of revisions. Data of 1,054 patients (94 %) were complete. Mean follow-up was 3.9 years for conventional and 2.4 years for navigated operations. Cumulative revision rate averaged 4.7 % for conventional and 2.3 % for navigated procedures. Cox's proportional hazard model was used to assess the effect of covariates on survival, resulting in significantly lower revision rates for older patients (p < 0.001) and for the navigated technique (p = 0.012). The reduced revision rate for navigated operations was mainly caused by a significantly reduced rate of aseptic implant loosening (1.9 % vs. 0.1 %, p = 0.024). Our study showed lower revision rates when computer navigation was used. However, due to the retrospective uncontrolled design, further prospective trials will be necessary to further evaluate this effect.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schnurr, Christoph UNSPECIFIED orcid.org/0000-0002-2129-7777 UNSPECIFIED Guedden, Isabell UNSPECIFIED UNSPECIFIED UNSPECIFIED Eysel, Peer UNSPECIFIED UNSPECIFIED UNSPECIFIED Koenig, Dietmar Pierre UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-479918
DOI:	10.1007/s00264-012-1606-6
Journal or Publication Title:	Int. Orthop.
Volume:	36
Number:	11
Page Range:	S. 2255 - 2261
Date:	2012
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	0341-2695
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TOTAL KNEE ARTHROPLASTY; REPLACEMENTS; ALIGNMENT; METAANALYSIS; SURVIVAL Multiple languages Orthopedics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47991