Strategies in Trauma and Limb Reconstruction

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VOLUME 5 , ISSUE 1 ( April, 2010 ) > List of Articles

Original Article

Direct exchange endoprosthetic reconstruction with tumour prosthesis for periprosthetic knee infection associated with segmental bone defects

Manjunath Ramappa, Ian McMurtry, Andrew Port

Keywords : Arthroplasty, Knee, Replacement, Limb salvage, Prosthesis-related infections, Osteolysis

Citation Information : Ramappa M, McMurtry I, Port A. Direct exchange endoprosthetic reconstruction with tumour prosthesis for periprosthetic knee infection associated with segmental bone defects. 2010; 5 (1):31-37.

DOI: 10.1007/s11751-009-0077-9

License: CC BY-NC-SA 4.0

Published Online: 01-06-2019

Copyright Statement:  Copyright © 2010; The Author(s).


Abstract

Revision knee arthroplasty for infection poses a treatment challenge. The presence of massive osteolysis limits the treatment options in this cohort. Controversy exists in the management of these patients. Direct exchange arthroplasty has provided good results in the presence of infection, but whether this is appropriate in the presence of massive bone defects associated with the infection is undetermined. We present our experience in revision knee arthroplasty for infection associated with massive bone defects. The aim of the study is to present the preliminary results of a direct exchange endoprosthetic reconstruction with tumour prosthesis for periprosthetic infection associated with segmental bone defects. This is a retrospective study of prospectively collected data, involving six patients with periprosthetic infection and massive bone defects treated by direct exchange tumour prostheses between 2003 and 2007 (four distal femoral replacements and two total femoral replacements). The mean age and follow-up were 74.2 (±5.2) years and 32.5 (±8.2) months respectively. Each patient had an infected revised knee arthroplasty at the time of referral to our institution. Staphylococcus aureus was the most common causal organism. The mean duration of antibiotics was 6 weeks intravenous therapy followed by 3.5 months oral. The recurrences of infection, pain or immobility were outcome criteria considered failures. Our success rate was 80%. Salvage of infected revised knee arthroplasty by direct exchange endoprosthetic reconstruction has provided an effective means of pain relief, joint stability and improved mobility in our cohort. It reduces morbidity through earlier mobilisation and avoids a second major operation.


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