Use of Endoprosthesis for the Treatment of Non-Neoplastic Pathologies of the Knee

DOI: https://doi.org/10.15417/issn.1852-7434.2023.88.5.1678
Keywords: Endoprosthesis, knee, infection, complications

Abstract

Introduction: Endoprosthesis is the gold standard for reconstruction after oncological resections. The advances regarding its materials and designs allowed for the expansion of the indications to non-neoplastic pathologies. Its simple and fast intraoperative assembly and its immediate mechanical stability allow for early rehabilitation and functional recovery. However, the failure rate is high, although it is different from oncological pathologies. The predominant causes are varied. Objectives: To analyze our experiencein the use of knee endoprosthesis and compare it with the literature, evaluating functional outcomes, radiographic outcomes, implant survival and causes of eventual failure. Materials and Methods: Patients with complex non-neoplastic knee pathology that required reconstruction with endoprosthesis were selected. Clinical history, anamnesis, physical examination, and radiographs were reviewed. For clinical examination and functional evaluation, the MusculoSkeletal Tumor Society Score (MSTS Score) was used. For implant failures, the modified Henderson et al. classification was used. Results: 12 endoprostheses were studied, with an average follow-up of 3.8 years. Failures were recorded in 2 (18%), with a mean time to failure of 47.5 months. One type 2 failure (aseptic loosening) and one type 4 failure (infection) were recorded. No other complications were noted. For the functional evaluation, the mean final score was 76.6%. Conclusion: Our results support the use of endoprostheses for complex non-neoplastic knee diseases in carefully selected patients, despite being a complex surgical procedure with many complications.

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Author Biographies

Fernando Daniel Jorge, Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina
José María Varaona, Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina
Lionel Prado , Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina
Francisco Tálamo , Servicio de Ortopedia y Traumatología, Hospital Alemán, Ciudad Autónoma de Buenos Aires, Argen
Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina
Pablo Pérez Cortés, Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Alemán, Autonomous City of Buenos Aires, Argentina

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Published
2023-10-17
How to Cite
Jorge, F. D., Varaona, J. M., Prado , L., Tálamo , F., & Pérez Cortés, P. (2023). Use of Endoprosthesis for the Treatment of Non-Neoplastic Pathologies of the Knee. Revista De La Asociación Argentina De Ortopedia Y Traumatología, 88(5), 466-477. https://doi.org/10.15417/issn.1852-7434.2023.88.5.1678
Issue
Vol 88 No 5 (2023): ACARO
Section
Clinical Research
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