Evidence map›Paper›PMID 30369093›Full record

ArticleArthritis care & research2019

Cost-Effectiveness of Alternative Anticoagulation Strategies for Postoperative Management of Total Knee Arthroplasty Patients.

Savannah R Smith, Jeffrey N Katz, Elena Losina

Open access · greenAbstract read
In one paragraph

Article in Arthritis care & research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Savannah R SmithGeorge Washington University School of Medicine and Health Sciences, Washington, DC, and Brigham and Women's Hospital, Boston, Massachusetts.
Jeffrey N KatzBrigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
Elena LosinaBrigham and Women's Hospital, Harvard Medical School, and Boston University School of Public Health, Boston, Massachusetts.ORCID 0000-0001-8229-6674
Brigham and Women's Hospital · USBoston University · US

Funding

Optimizing the value of pain management in knee OA patients with comorbiditiesR01AR074290 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI Elena Losina · 2018 to 2026
$5.9M
Clinical impact and cost-effectiveness of pain management in knee OAR01AR064320 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI LOSINA, ELENA · 2013 to 2017
$3.3M
Patient Oriented Research and Mentoring Program in OrthopedicsK24AR057827 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI LOSINA, ELENA · 2010 to 2019
$1.7M
NIAMS NIH HHS K24 AR057827NIAMS NIH HHS R01 AR064320NIAMS NIH HHS R01 AR074290Rheumatology Research Foundation
6 · The paper itself

Abstract

objectiveTo evaluate the cost-effectiveness of prolonged (35-day) and standard-duration (14-day) anticoagulation therapy following total knee arthroplasty (TKA).

methodsUsing Markov modeling, we assessed clinical and economic outcomes of 14-day and 35-day anticoagulation therapy following TKA with rivaroxaban, low molecular weight heparin (LMWH), fondaparinux, warfarin, and aspirin. Incidence of complications of TKA and anticoagulation therapy (deep vein thrombosis [DVT], pulmonary embolism [PE], prosthetic joint infection [PJI], and bleeding) were derived from published literature. Daily costs ranged from $1 (aspirin) to $43 (fondaparinux). Primary outcomes included quality-adjusted life years (QALYs), direct medical costs, and incremental cost-effectiveness ratios (ICERs) at 1 year post-TKA. The preferred regimen was the regimen with highest QALYs maintaining an ICER below the willingness-to-pay threshold ($100,000/QALY). We conducted probabilistic sensitivity analyses, varying complication incidence and anticoagulation efficacy, to evaluate the impact of parameter uncertainty on model results.

resultsAspirin resulted in the highest cumulative incidence of DVT and PE, while prolonged fondaparinux led to the largest reduction in DVT incidence (15% reduction compared to no prophylaxis). Despite differential bleeding rates (ranging from 3% to 6%), all strategies had similar incidence of PJI (1% to 2%). Prolonged rivaroxaban was the least costly strategy ($3,300 at 1 year post-TKA) and the preferred regimen in the base case. In sensitivity analyses, prolonged rivaroxaban and warfarin had similar likelihoods of being cost-effective.

conclusionExtending postoperative anticoagulation therapy to 35 days increases QALYs compared to standard 14-day prophylaxis. Prolonged rivaroxaban and prolonged warfarin are most likely to be cost-effective post-TKA; the costs of fondaparinux and LMWH precluded their being preferred strategies.

Indexed as

Arthroplasty, Replacement, KneePractice Guidelines as TopicAgedAnticoagulantsCost-Benefit AnalysisFemaleFollow-Up StudiesHumansMalePostoperative PeriodRetrospective StudiesThrombolytic TherapyVenous ThromboembolismAnticoagulants

Identifiers

PMID30369093
PMCPMC6487236
OpenAlexW2800709616

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.