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KMID : 0359620160280030239
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Journal of Korean Knee Society
2016 Volume.28 No. 3 p.239 ~ p.244
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Use of a New Knee Prosthesis as an Articulating Spacer in Two-Stage Revision of Infected Total Knee Arthroplasty
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Rasmus Juul
Jesper Fabrin
Klaus Poulsen
Henrik Morville Schroder
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Abstract
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Purpose: To report our experience with two-stage revision using a new femoral component (NFC) spacer (Depuy Synthes) as an articulating spacer.
Materials and Methods: In this retrospective study, we reviewed 22 two-stage revisions that were performed using an NFC spacer in 22 patients suspected of having an infected total knee arthroplasty (TKA) from December 2010 to March 2013. The result was considered successful when eradication of infection was achieved using only one NFC spacer.
Results: The average time from primary TKA to the first stage procedure was 29.1 months and the average time from the first stage procedure until the final second stage procedure was 12.7 weeks. The average range of motion increased from 82° preoperatively to 104° postoperatively. The American Knee Society Knee score increased from 29.3 points to 66 points. The Function score increased from 29.5 points to 64 points. Four cases were reinfected after two-stage revision. The mean follow-up was 37.6 months.
Conclusions: The new articulating spacer showed promising short-term results both with regard to eradication of infection and functional improvement.
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KEYWORD
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Knee, Arthroplasty, Infection, Revision, Two-stage, Articulating spacer, New prosthesis
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