Evidence map›Paper›PMID 33537539›Full record

ArticleResearch and practice in thrombosis and haemostasis2021

Venous thromboembolism after lower extremity orthopedic surgery: A population-based nationwide cohort study.

Inger Lise Gade, Søren Kold, Marianne T Severinsen, Kristian H Kragholm, Christian Torp-Pedersen, Søren R Kristensen, Signe J Riddersholm

Open access · goldAbstract read
In one paragraph

Article in Research and practice in thrombosis and haemostasis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Inger Lise GadeDepartment of Hematology and Clinical Cancer Research Center Aalborg University Hospital Aalborg Denmark.ORCID https://orcid.org/0000-0003-0533-5531
Søren KoldDepartment of Clinical Medicine Aalborg University Aalborg Denmark.
Marianne T SeverinsenDepartment of Hematology and Clinical Cancer Research Center Aalborg University Hospital Aalborg Denmark.
Kristian H KragholmDepartment of Cardiology North Denmark Regional Hospital Hjørring Denmark.
Christian Torp-PedersenDepartment of Clinical Medicine Aalborg University Aalborg Denmark.
Søren R KristensenDepartment of Clinical Biochemistry Aalborg University Hospital Aalborg Denmark.ORCID https://orcid.org/0000-0002-2649-506X
Signe J RiddersholmDepartment of Medicine Randers Regional Hospital Randers Denmark.
Aalborg University Hospital · DKRegional Hospital Randers · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVenous thromboembolism (VTE) causes morbidity and mortality in the general population. Several events occur after lower limb orthopedic surgery, but the contribution from various types of lower limb surgery is not well known.

objectiveTo investigate the postoperative incidence of VTE for all types of lower extremity orthopedic surgery compared with the background population.

methodsIndividual-level linkage of Danish nationwide register data for all Danish residents with first-time orthopedic surgery of the lower limb (1996-2017) and, for each of these, four controls from the general population matched on age, sex, and history of VTE. Adjusted hazard ratios (HR) compared the postoperative risk of VTE to the matched controls.

resultsIn total 7203 of the 1 012 823 patients with a first orthopedic procedure had a VTE within 180 days after surgery, corresponding to a postoperative cumulative incidence of 0.71% (95% confidence interval [CI], 0.70-0.73). The cumulative incidence of VTE among controls was 0.11% (95% CI, 0.11-0.12). The HR of VTE within the first 30 days after surgery below knee level was 20.5 (95% CI, 17.9-23.5) compared with matched controls. The HRs of VTE after minor distal procedures (eg, meniscectomy and arthroscopies) were 2.9 (95% CI, 1.9-4.4) to 7.1 (95% CI, 6.4-8.0).

conclusionAll types of lower limb orthopedic surgery including minor distal procedures were associated with higher rates of VTE compared with matched controls, in particular within the first 30 days after surgery.

Indexed as

cohort studiesepidemiologyorthopedic procedurespulmonary embolismvenous thromboembolism

Identifiers

PMID33537539
PMCPMC7845063
OpenAlexW3107259746

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.