ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2025
Distal femur replacement for infected bone defects due to end-stage periprosthetic joint infection or trauma: a staged strategy protocol using the stemless Compress® device protected with a fast resorbable antibiotic-loaded hydrogel.
Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundDistal femur replacement (DFR) with a stemmed megaprosthesis represents a challenge due to high rates of loosening and limited reconstructive options if the implant fails. Such an unfavourable scenario is even more complex where there are also infected bone defects. The Compress® device was developed to provide an alternative to traditional intramedullary stems. We report on the outcomes of a staged protocol using the Compress® DFR, protected with a vancomycin-gentamicin-loaded hydrogel, in infected non-oncological scenarios.
methodsRetrospective longitudinal cohort study including patients with infected defects of the distal femur following orthopaedic trauma or periprosthetic joint infection (PJI) and managed with the protocol described. Protocol features, microbiological data, radiological results, complications, infection control, and implant survivorship were assessed. Minimum follow-up was 18 months or until implant removal.
results21 cases of Compress® DFR were included. On average, patients had 4.9 prior surgeries and 14.5 cm distal femur bone defects after pseudo-oncological resection. After median follow-up of 42 months (18-83 months), no infection recurrence occurred; limb salvage was achieved in all cases. Five patients experienced aseptic loosening, all within the first 7 post-operative months. Beyond this time threshold, no further implant failures were observed, resulting in a cumulative implant survival rate of 75% at 1 and 5 years, and of 75% at final follow-up.
conclusionStaged Compress® DFR with antibiotic-loaded hydrogel protection is a reliable option for selected patients with distal femoral bone defects, offering high infection control, durable implant survivorship, and simplified revision. Aseptic failures occurred primarily within the early post-operative months, highlighting the need for close monitoring during this critical period. This approach provides a promising solution for complex non-oncological cases involving infected distal femoral bone defects.
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