Journal ArticleDOI
Why are Total Knee Arthroplasties Being Revised
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TLDR
Comparison with previously published reasons showed fewer TKA revisions for polyethylene wear, osteolysis, instability, and malalignment, which may represent improvements in surgical technique and implants.Abstract:
Despite technical improvements, revision rates for total knee arthroplasties (TKAs) remain high. Our goal was to report the reason(s) for revision TKA in a large, current, multicenter series and compare those reasons with previously published reasons. We retrospectively identified 820 consecutive revision TKAs (693 patients, 2000-2012) from our 3 centers and recorded the primary reason for the revision. The top seven reasons for the revision were aseptic loosening (23.1%), infection (18.4%), polyethylene wear (18.1%), instability (17.7%), pain/stiffness (9.3%), osteolysis (4.5%), and malposition/malalignment (2.9%). Comparison with previously published reasons showed fewer TKA revisions for polyethylene wear, osteolysis, instability, and malalignment. These changes may represent improvements in surgical technique and implants.read more
Citations
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Journal ArticleDOI
Current Epidemiology of Revision Total Knee Arthroplasty in the United States
Ronald E. Delanois,Jaydev B. Mistry,Chukwuweike U. Gwam,Nequesha S. Mohamed,Ujval S. Choksi,Michael A. Mont +5 more
TL;DR: In this article, the authors used the Healthcare Cost and Utilization Project (HCUP) National Inpatient Sample (NIS) database to identify all revision total knee arthroplasty procedures performed between 2009 and 2013.
Journal ArticleDOI
Current failure mechanisms after knee arthroplasty have changed: polyethylene wear is less common in revision surgery.
TL;DR: Aseptic loosening, instability, malalignment, and periprosthetic infection continue to be the primary failure mechanisms leading to revision surgery, with a substantial reduction in implant-associated revisions such as those due to polyethylene wear.
Journal ArticleDOI
The epidemiology of failure in total knee arthroplasty: avoiding your next revision.
TL;DR: A current concepts review on the epidemiology of failed TKAs using data from worldwide National Joint Registries is presented.
Journal ArticleDOI
Periprosthetic Joint Infection Is the Main Cause of Failure for Modern Knee Arthroplasty: An Analysis of 11,134 Knees.
TL;DR: In this large cohort of patients with comprehensive followup of revision procedures, PJI was the dominant reason for failure during the first 15 years after primary TKA, and aseptic loosening became more important with longer followup.
Journal ArticleDOI
Zonal fixation in revision total knee arthroplasty
TL;DR: It is suggested that solid fixation should be obtained in at least two of the three zones and the importance of pre-operative planning and implant selection is emphasised.
References
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Journal ArticleDOI
Prevalence of Primary and Revision Total Hip and Knee Arthroplasty in the United States From 1990 Through 2002
TL;DR: The number and prevalence of primary hip and knee replacements increased substantially in the United States between 1990 and 2002, but the trend was considerably more pronounced for primary total knee arthroplasty.
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Why are total knee arthroplasties failing today
TL;DR: Fifty percent of early revision total knee arthroplasties in this series were related to instability, malalignment or malposition, and failure of fixation, and half of the revisions in this group of patients were done less than 2 years after the index operation.
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Early failures in total knee arthroplasty.
TL;DR: If all of the arthroplasties in the patients in this early failure group would have been cemented routinely and balanced carefully, the total number of early revisions would have decreased by approximately 40%, and the overall failures would have be reduced by 25%.
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Survivorship of cemented total knee arthroplasty.
TL;DR: Long term results of cemented, total knee arthroplasty with a relatively conforming articular surface has been shown to be a reliable procedure with excellent survivorship.
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The Chitranjan Ranawat Award: Long-term survivorship and failure modes of 1000 cemented condylar total knee arthroplasties.
TL;DR: In this paper, the authors examined factors affecting survivorship, and reasons for reoperation and revision of a cemented modular condylar total knee arthroplasty (TKA).