Midterm Results After Tantalum Cones in 1-Stage Knee Exchange for Periprosthetic Joint Infection: A Single-Center Study

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dc.contributor.authorAbdelaziz, Hussein
dc.contributor.authorBiewald, Philipp
dc.contributor.authorAnastasiadis, Zoy
dc.contributor.authorHaasper, Carl
dc.contributor.authorGehrke, Thorsten
dc.contributor.authorHawi, Nael
dc.contributor.authorCitak, Mustafa
dc.date.accessioned2021-10-26T00:27:50Z
dc.date.available2021-10-26T00:27:50Z
dc.date.issued2020
dc.description.abstractBackground: The use of tantalum cones to reconstruct extensive bone defects in revision total knee arthroplasty has been established. We aimed to evaluate the midterm results after 1-stage knee exchange for periprosthetic joint infection using tantalum cones. Methods: Seventy-two patients (mean age, 70 ± 8.2 years) treated with a 1-stage exchange for infected total knee arthroplasty using porous tantalum cones, between 2011 and 2016, were retrospectively included. Either rotating or pure hinge system in combination with femoral and/or tibial cones was used. Survivorship analysis (septic and aseptic) was performed. Prospectively, functional outcome was assessed at a mean follow-up of 49.9 ± 18.8 months (range, 24-88). Results: A total of 15 patients (21%) were rerevised, 8 (11.1%) for infection and 7 (10%) for aseptic loosening, requiring cone exchange in 12 patients (17%). Cone-related survival free from any revision was 83% ± 3.8 standard deviation (95% confidence interval, 74-90), and infection-free survival was 89% ± 4.2 standard deviation (95% confidence interval, 76-93). No significant correlation was reported between the types of prosthesis used (P = .8) or implanted cones and failure (P = .6). History of a previous septic revision increased the risk of cone revision after the index surgery (P < .001). Preoperative Hospital for Special Surgery knee score improved from 47 ± 16 (range, 14-87) to 60 ± 17 (range, 24-84) points at the latest follow-up. Conclusion: First study reports on outcomes of the 1-stage exchange using tantalum cones for knee periprosthetic joint infection with additional severe bone loss. Midterm cone-related and infection-free survival offered good results and provided reasonable functional outcomes.es
dc.identifier.citationJ Arthroplasty . 2020 Apr;35(4):1084-1089es
dc.identifier.urihttps://doi.org/10.1016/j.arth.2019.11.016es
dc.identifier.urihttp://hdl.handle.net/11447/4911
dc.language.isoenes
dc.subject1-stage exchangees
dc.subjectbone defectses
dc.subjectknee arthroplastyes
dc.subjectperiprosthetic joint infectiones
dc.subjecttantalum coneses
dc.titleMidterm Results After Tantalum Cones in 1-Stage Knee Exchange for Periprosthetic Joint Infection: A Single-Center Studyes
dc.typeArticlees

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