ArticleActa orthopaedica2009
Low rate of infected knee replacements in a nationwide series--is it an underestimate?
Article in Acta orthopaedica, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
30 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- The role of surgical helmet systems in reducing infection rate: a systematic review.Journal of orthopaedic surgery and research · 2025Pooled it
- Incidence of periprosthetic joint infection after primary total hip arthroplasty is underestimated: a synthesis of meta-analysis and bibliometric analysis.Journal of orthopaedic surgery and research · 2023Pooled it
- Tibial tubercle osteotomy or quadriceps snip in two-stage revision for prosthetic knee infection? A randomized prospective study.Clinical orthopaedics and related research · 2013Trial
- Impact of Reformation of the Arthroplasty Register From Analogic to Digital-Based Data: Increased Completeness and Accuracy of Knee Revision Data.Arthroplasty today · 2026Article
- Validation of periprosthetic joint infection after total knee arthroplasty: a cohort study on 423 cases from the Norwegian Arthroplasty Register.Acta orthopaedica · 2026Article
- Enhancing the data capture of periprosthetic joint infections in the Danish Knee Arthroplasty Registry: validity assessment and incidence estimation.Acta orthopaedica · 2024Observational
- Temporal trends in revision rate due to knee periprosthetic joint infection: a study of 115,120 cases from the Danish Knee Arthroplasty Register.Acta orthopaedica · 2023Article
- The accuracy of reporting of periprosthetic joint infection to the Australian Orthopaedic Association National Joint Replacement Registry.Bone & joint open · 2022Article
- Similar periprosthetic joint infection rates after and before a national infection control program: a study of 45,438 primary total knee arthroplasties.Acta orthopaedica · 2022Article
- Weighing in on Body Mass Index and Infection After Total Joint Arthroplasty: Is There Evidence for a Body Mass Index Threshold?Clinical orthopaedics and related research · 2018Article
- Patient and surgical factors affecting procedure duration and revision risk due to deep infection in primary total knee arthroplasty.BMC musculoskeletal disorders · 2017Article
- Increased Mortality After Prosthetic Joint Infection in Primary THA.Clinical orthopaedics and related research · 2017Article
- Observational
- New Zealand Joint Registry data underestimates the rate of prosthetic joint infection.Acta orthopaedica · 2016Article
- Elevated risk of early reoperation in total hip replacement during the stage of unit closure: A population-based registry study of total hip and knee replacements in Finland, 1998-2011.Acta orthopaedica · 2016Article
- Prosthetic joint infection following hip fracture and degenerative hip disorder: a cohort study of three thousand, eight hundred and seven consecutive hip arthroplasties with a minimum follow-up of five years.International orthopaedics · 2015Article
- The "true" incidence of surgically treated deep prosthetic joint infection after 32,896 primary total hip arthroplasties: a prospective cohort study.Acta orthopaedica · 2015Article
- The rate of prosthetic joint infection is underestimated in the arthroplasty registers.Acta orthopaedica · 2015Article
- The incidence of late prosthetic joint infections: a registry-based study of 112,708 primary hip and knee replacements.Acta orthopaedica · 2015Article
- Comparison of quadriceps snip and tibial tubercle osteotomy in revision for infected total knee arthroplasty.International orthopaedics · 2015Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeSpecialist hospitals have reported an incidence of early deep infections of < 1% following primary knee replacement. The purpose of this study was to estimate the infection rate in a nationwide series using register-based data.
methodsThe Finnish Arthroplasty Register (FAR) was searched for primary unicompartmental, total, and revision knee arthroplasties performed in 1997 through 2003 and eventual revision arthroplasties. The FAR data on revision arthroplasties was supplemented by a search of the national Hospital Discharge Register (HDR) for debridements, partial and total revision knee replacements, resection arthroplasties, arthrodeses, and amputations.
resultsDuring the first postoperative year, 0.33% (95% CI: 0.13-0.84), 0.52% (0.45-0.60) and 1.91% (1.40-2.61) of the primary UKAs, primary TKAs, and revision TKAs, respectively, were reoperated due to infection. The 1-year rate of reoperations due to infection remained constant in all arthroplasty groups over the observation period. The overall infection rate calculated using FAR data only was 0.77% (95% CI: 0.69-0.86), which was lower, but was not, however, statistically significantly different from the overall infection rate calculated using endpoint data combined from FAR and HDR records (0.89%; 95% CI: 0.80-0.99). FAR registered revision arthroplasties and patellar resurfacing arthroplasties reliably but missed a considerable proportion of other reoperations.
interpretationMore reoperations performed due to infection can be expected as the numbers of knee arthroplasties increase, since there has been no improvement in the early infection rate. Finnish Arthroplasty Register data appear to underestimate the incidence of reoperations performed due to infection.
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