ArticleInternational orthopaedics2014
How to deal with lost to follow-up in total knee arthroplasty : a new method based on the competing risks approach.
Article in International orthopaedics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.
- Similar outcome after retention or sacrifice of the posterior cruciate ligament in total knee arthroplasty.Acta orthopaedica · 2015Pooled it
- Cemented total hip arthroplasty revisions in patients of eighty years and older.International orthopaedics · 2015Article
- Patient acceptable symptom states after totalhip or knee replacement at mid-term follow-up: Thresholds of the Oxford hip and knee scores.Bone & joint research · 2014Article
- Debridement, Antibiotics, and Implant Retention with the Direct Anterior Approach for Acute Periprosthetic Joint Infection Following Primary THA.JB & JS open accessArticle
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe aim of this study was to develop a more accurate method to deal with patients lost to follow-up based on the competing risks approach.
methodsA cohort of 112 patients who received 143 primary cemented total knee arthroplasties forms the basis for this study. Follow-up was up to 25 years. The new method for dealing with lost to follow-up accounts for competing events (i.e. death and failure of a prosthesis) using the cumulative incidence estimator and estimates time to event for patients lost to follow-up using national demographic registries. The results of this new method were compared with the worst case scenario estimated by Kaplan-Meier.
resultsSix different situations were identified covering all possible situations in long-term follow-up for total knee arthroplasty. The new method--considering all patients lost to follow-up as revised--showed a twofold reduction in revision rate compared to the traditional worst case scenario using Kaplan-Meier.
conclusionsLost to follow-up should be prevented whenever possible, but this may be unavoidable for long-term follow-up studies. In situations where lost to follow-up does occur, the new proposed method offers an efficient and valid approach to deal with this problem.
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