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. 2009 Jul;467(7):1706-14.
doi: 10.1007/s11999-009-0739-4. Epub 2009 Feb 18.

Outcome of a second two-stage reimplantation for periprosthetic knee infection

Khalid Azzam  1 , Kevin McHale, Matthew Austin, James J Purtill, Javad Parvizi
Affiliations

Outcome of a second two-stage reimplantation for periprosthetic knee infection

Khalid Azzam et al. Clin Orthop Relat Res. 2009 Jul.

Abstract

Recurrent or persistent infection after two-stage exchange arthroplasty for previously infected total knee replacement is a challenging clinical situation. We asked whether a second two-stage procedure could eradicate the infection and preserve knee function. We evaluated 18 selected patients with failed two-stage total knee arthroplasty implantation treated with a second two-stage reimplantation between 1999 and 2005. Failure of treatment was defined as recurrence or persistence of infection. The minimum followup was 24 months (mean, 40 months; range, 24-83 months). Recurrent or persistent infection was diagnosed in four of 18 patients, two of whom were successfully treated with a third two-stage exchange arthroplasty. Knee Society score questionnaires administered at the last followup showed an average Knee Society knee score of 73 points (range, 24-100 points) and an average functional score of 49 points (range, 20-90 points). The data suggest repeat two-stage exchange arthroplasty is a reasonable option for eradicating periprosthetic infection, relieving pain, and achieving a satisfactory level of function for some patients.

Level of evidence: Level IV, therapeutic study.

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Figures

Fig. 1
Fig. 1
A flowchart outlines the surgical treatment of 33 patients with reinfection after two-stage exchange knee arthroplasty at our institution between 1999 and 2005.
Fig. 2
Fig. 2
This anteroposterior radiograph of a knee 6 years after second revision for sepsis shows a properly seated semiconstrained prosthesis.
Fig. 3
Fig. 3
The radiograph shows a knee 2 years after third two-stage revision for sepsis. Distal femoral replacement was performed owing to extensive bone loss from multiple revisions.
See this image and copyright information in PMC

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