Evidence map›Paper›PMID 34665003›Full record

ArticleBone & joint open2021

Transfusion in orthopaedic surgery : a retrospective multicentre cohort study.

Anna R Blankstein, Brett L Houston, Dean A Fergusson, Donald S Houston, Emily Rimmer, Eric Bohm, Mina Aziz, Allan Garland, Steve Doucette, Robert Balshaw and 2 more

Open access · goldAbstract read
In one paragraph

Article in Bone & joint open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 38% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
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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

12 authors at 5 institutions in 3 countries.

Anna R BlanksteinRady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada.ORCID 0000-0001-7127-7443
Brett L HoustonRady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada.
Dean A FergussonClinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Canada.
Donald S HoustonRady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada.
Emily RimmerRady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada.
Eric BohmRady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada.
Mina AzizDepartment of Orthopedic Surgery, University of Manitoba, Winnipeg, Canada.
Allan GarlandDepartment of Internal Medicine - Critical Care, University of Manitoba Max Rady College of Medicine, Winnipeg, Canada.
Steve DoucetteResearch Methods Unit, Nova Scotia Health Authority, Halifax, Canada.
Robert BalshawDepartment of Community Health Sciences, University of Manitoba, Winnipeg, Canada.
Alexis TurgeonDepartment of Anesthesiology and Critical Care, Universite Laval Faculte de medecine, Quebec, Canada.
Ryan ZarychanskiRady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada.
University of Manitoba · CACancerCare Manitoba · CAEuropean Society of Anaesthesiology · BENova Scotia Health Authority · CAUniversity of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsOrthopaedic surgeries are complex, frequently performed procedures associated with significant haemorrhage and perioperative blood transfusion. Given refinements in surgical techniques and changes to transfusion practices, we aim to describe contemporary transfusion practices in orthopaedic surgery in order to inform perioperative planning and blood banking requirements.

methodsWe performed a retrospective cohort study of adult patients who underwent orthopaedic surgery at four Canadian hospitals between 2014 and 2016. We studied all patients admitted to hospital for nonarthroscopic joint surgeries, amputations, and fracture surgeries. For each surgery and surgical subgroup, we characterized the proportion of patients who received red blood cell (RBC) transfusion, the mean/median number of RBC units transfused, and exposure to platelets and plasma.

resultsOf the 14,584 included patients, the most commonly performed surgeries were knee arthroplasty (24.8%), hip arthroplasty (24.6%), and hip fracture surgery (17.4%). A total of 10.3% of patients received RBC transfusion; the proportion of patients receiving RBC transfusions varied widely based on the surgical subgroup (0.0% to 33.1%). Primary knee arthroplasty and hip arthroplasty, the two most common surgeries, were associated with in-hospital transfusion frequencies of 2.8% and 4.5%, respectively. RBC transfusion occurred in 25.0% of hip fracture surgeries, accounting for the greatest total number of RBC units transfused in our cohort (38.0% of all transfused RBC units). Platelet and plasma transfusions were uncommon.

conclusionOrthopaedic surgeries were associated with variable rates of transfusion. The rate of RBC transfusion is highly dependent on the surgery type. Identifying surgeries with the highest transfusion rates, and further evaluation of factors that contribute to transfusion in identified at-risk populations, can serve to inform perioperative planning and blood bank requirements, and facilitate pre-emptive transfusion mitigation strategies. Cite this article:

Indexed as

amputation surgeriesbloodblood cellBlood conservationfracture surgerieship and knee arthroplastyhip fracture surgeriesjoint surgeriesOrthopaedic surgeryorthopaedic surgical procedurePerioperative medicineplateletsRBC transfusion

Identifiers

PMID34665003
PMCPMC8558454
OpenAlexW3207553918

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.