Evidence map›Paper›PMID 34139875›Full record

ArticleBone & joint open2021

The association of preoperative blood markers with postoperative readmissions following arthroplasty.

Amir Khoshbin, Graeme Hoit, Lauren Leone Nowak, Anser Daud, Martine Steiner, Peter Juni, Bheeshma Ravi, Amit Atrey

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 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.7field-weighted citation impact, top 14% 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

10 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
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  8. Alkaline Phosphatase is an Independent Risk Factor for Periprosthetic Fractures in Total Joint Arthroplasty.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2023
    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

8 authors at 4 institutions in 1 country.

Amir KhoshbinDivision of Orthopaedics, St. Michael's Hospital, University of Toronto, Toronto, Canada.ORCID https://orcid.org/0000-0002-0891-3424
Graeme HoitDivision of Orthopaedics, St. Michael's Hospital, University of Toronto, Toronto, Canada.
Lauren Leone NowakDepartment of Surgery, London Health Sciences Centre, London, Canada.ORCID https://orcid.org/0000-0002-4388-3128
Anser DaudDivision of Orthopaedics, St. Michael's Hospital, University of Toronto, Toronto, Canada.
Martine SteinerFaculty of Medicine, University of Toronto, Toronto, Canada.
Peter JuniApplied Health Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.
Bheeshma RaviDivision of Orthopaedics, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Canada.ORCID https://orcid.org/0000-0003-1829-6885
Amit AtreyDivision of Orthopaedics, St. Michael's Hospital, University of Toronto, Toronto, Canada.
St. Michael's Hospital · CALondon Health Sciences Centre · CASunnybrook Health Science Centre · CAUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsWhile preoperative bloodwork is routinely ordered, its value in determining which patients are at risk of postoperative readmission following total knee arthroplasty (TKA) and total hip arthroplasty (THA) is unclear. The objective of this study was to determine which routinely ordered preoperative blood markers have the strongest association with acute hospital readmission for patients undergoing elective TKA and THA.

methodsTwo population-based retrospective cohorts were assembled for all adult primary elective TKA (n = 137,969) and THA (n = 78,532) patients between 2011 to 2018 across 678 North American hospitals using the American College of Surgeons National Quality Improvement Programme (ACS-NSQIP) registry. Six routinely ordered preoperative blood markers - albumin, haematocrit, platelet count, white blood cell count (WBC), estimated glomerular filtration rate (eGFR), and sodium level - were queried. The association between preoperative blood marker values and all-cause readmission within 30 days of surgery was compared using univariable analysis and multivariable logistic regression adjusted for relevant patient and treatment factors.

resultsThe mean TKA age was 66.6 years (SD 9.6) with 62% being females (n = 85,163/137,969), while in the THA cohort the mean age was 64.7 years (SD 11.4) with 54% being female (n = 42,637/78,532). In both cohorts, preoperative hypoalbuminemia (< 35 g/l) was associated with a 1.5- and 1.8-times increased odds of 30-day readmission following TKA and THA, respectively. In TKA patients, decreased eGFR demonstrated the strongest association with acute readmission with a standardized odds ratio of 0.75 per two standard deviations increase (p < 0.0001).

conclusionIn this population level cohort analysis of arthroplasty patients, low albumin demonstrated the strongest association with acute readmission in comparison to five other commonly ordered preoperative blood markers. Identification and optimization of preoperative hypoalbuminemia could help healthcare providers recognize and address at-risk patients undergoing TKA and THA. This is the most comprehensive and rigorous examination of the association between preoperative blood markers and readmission for TKA and THA patients to date. Cite this article:

Indexed as

ArthroplastyPreoperative bloodmarkersPreoperative screeningReadmissionTotal hip arthroplastyTotal knee arthroplasty

Identifiers

PMID34139875
PMCPMC8244797
OpenAlexW3167598346

What OpenQuestion holds

Textmetadata
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.