An intraoperatively moulded PMMA prostheses like spacer for two-stage revision of infected total knee arthroplasty

Kohl, Sandro; Evangelopoulos, Dimitrios S; Kohlhof, Hendrik; Krueger, Andreas; Hartel, Maximilian; Roeder, Christoph; Eggli, Stefan (2011). An intraoperatively moulded PMMA prostheses like spacer for two-stage revision of infected total knee arthroplasty. The knee, 18(6), pp. 464-9. Amsterdam: Elsevier 10.1016/j.knee.2010.09.002

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We report a series of 16 consecutive total knee arthroplasty (TKA) revision procedures for deep infection, treated with a newly developed intraoperatively moulded PMMA cement-prostheses-like spacer (CPLS). The standard treatment consisted of a two-stage protocol with initial explantation of the infected components combined with radical debridement, followed by implantation of a temporary cement spacer and final reimplantation of a new TKA. A sterilizeable Teflon tapered aluminium mould was developed for production of a custom made CPLS during the intervention. Stable implantation of the CPLS was achieved with a second cementation, allowing for correct alignment and ligament balancing. The spacer remained 3.5 months on average until reimplantation of a TKA occurred. At time of reimplantation, patients had an average KSS score of 84.44 points with an average flexion capacity of 102°. There was no recurrent infection during the study period of minimum 2 years. With this new technique, a low friction articulation with good stability, high comfort and a better range of motion compared to handcrafted spacers was achieved. The use of this spacer is a time sparing, cheap and convenient option in 2-stage TKA revision.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery 04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Evaluative Research into Orthopaedic Surgery
UniBE Contributor:	Kohl, Sandro, Kohlhof, Hendrik, Krüger, Andreas, Röder, Christoph
ISSN:	0968-0160
Publisher:	Elsevier
Language:	English
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 14:09
Last Modified:	05 Dec 2022 14:00
Publisher DOI:	10.1016/j.knee.2010.09.002
PubMed ID:	20947358
Web of Science ID:	000297432800023
URI:	https://boris.unibe.ch/id/eprint/1011 (FactScience: 201655)