ArticleActa orthopaedica2022
Optimized medial unicompartmental knee arthroplasty outcome: learning from 20 years of propensity score matched registry data.
Article in Acta orthopaedica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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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
13 citing papers in PubMed, 30 citations in OpenAlex.
- Patient-reported outcomes after lateral unicompartmental and total knee arthroplasty: a propensity score-matched cohort study.Archives of orthopaedic and trauma surgery · 2026Article
- Associations between hospital characteristics, volume, and reasons for revision: a cohort study of 48,029 unicompartmental knee arthroplasties with 3,397 revisions from the Dutch Arthroplasty Register.Acta orthopaedica · 2026Article
- The one-year trajectories of patient-reported outcomes are better for medial unicompartmental knee arthroplasty compared with total knee arthroplasty : a matched cohort study.Bone & joint open · 2025Article
- Optimising outcomes in lateral unicompartmental knee arthroplasty: Analysing 25 years of registry data.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Long-term outcomes of a 3D printed cementless fixed bearing unicompartmental knee arthroplasty.Archives of orthopaedic and trauma surgery · 2025Article
- Revision of unicondylar knee arthroplasty: an analysis of failure rates and contributing factors.Knee surgery & related research · 2025Article
- [Unicondylar knee arthroplasties demonstrate a significantly increased risk of aseptic revisions compared with unconstrained and constrained TKA : Analysis of aseptic revisions after unicondylar and primary total knee arthroplasty of the German Arthroplasty Register].Orthopadie (Heidelberg, Germany) · 2024Article
- What are the age-related factors linked to aseptic revisions in constrained and unconstrained TKA as well as UKA? A register-based study from the German arthroplasty registry (EPRD).Archives of orthopaedic and trauma surgery · 2024Article
- [Successful medial unicompartmental knee arthroplasty-What are the most important surgical tricks?]Orthopadie (Heidelberg, Germany) · 2024Review
- Postoperative orthostatic intolerance following fast-track unicompartmental knee arthroplasty: incidence and hemodynamics-a prospective observational cohort study.Journal of orthopaedic surgery and research · 2024Observational
- How to Perform Better on Oxford UKA? A Technical Note from over 500 Surgical Experiences.Orthopaedic surgery · 2023Article
- Clinical and Functional Results of Cementless Unicompartmental Knee Arthroplasty with a Minimum Follow Up of 5 Years-A Consecutive Cohort of 201 Patients.Journal of clinical medicine · 2023Article
- Balancing in Unicompartmental Knee Arthroplasty: Balancing in Flexion or in Extension?Journal of clinical medicine · 2022Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeUnicompartmental knee arthroplasty (UKA) has increased in use. We investigated changes to UKA revision risk over the last 20 years compared with total knee arthroplasty (TKA), examined external and patient factors for correlation to UKA revision risk, and described the survival probability for current UKA and TKA practice. PATIENTS AND
methodsAll knee arthroplasties reported to the Danish Knee Arthroplasty Register from 1997 to 2017 were linked to the National Patient Register and the Civil Registration System for comorbidity, emigration, and mortality information. All primary UKA and TKA patients with primary osteoarthritis were included and propensity score matched 4 TKAs to 1 UKA. Revision and mortality were analyzed using competing risk cox regression with a shared gamma frailty component.
resultsThe matched cohort included 48,195 primary knee arthroplasties (9,639 UKAs). From 1997-2001 to 2012-2017 the 3-year hazard ratio decreased from 5.5 (95% CI 2.7-11) to 1.5 (CI 1.2-1.8) due to increased UKA survival. Cementless fixation, a high percentage usage of UKA, and increased surgical volume decreased UKA revision risk, and increased in occurrence parallel to the decreasing revision risks. Current UKA practice using cementless fixation at a high usage unit has a 3-year implant survival of 96% (CI 97-95), 1.1% lower than current TKA practice.
interpretationUKA revision risk has decreased over the last 20 years, nearing that of TKA surgery. High usage rates, surgical volume, and the use of cementless fixation have increased during the study and were associated with decreased UKA revision risks.
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