Evidence map›Paper›PMID 39035782›Full record

ArticleJournal of orthopaedics2024

Are tourniquets indicated in total knee arthroplasty in the era of tranexamic acid: A meta-analysis and systematic review.

Afshin A Anoushiravani, Rajkishen Narayanan, Kevin K Chen, Daniel Hameed, Jeremy Dubin, Ameer Elbuluk, James E Feng, Richard Iorio, Ran Schwarzkopf

Abstract read
In one paragraph

Article in Journal of orthopaedics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. 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

9 authors.

Afshin A AnoushiravaniDepartment of Orthopaedic Surgery, Albany Medical Center, USA.
Rajkishen NarayananDepartment of Orthopedic Surgery, NYU Langone Health, NYU Langone Orthopedic Hospital, USA.
Kevin K ChenDepartment of Orthopedic Surgery, NYU Langone Health, NYU Langone Orthopedic Hospital, USA.
Daniel HameedDepartment of Orthopaedic Surgery, Brigham and Women's Hospital, USA.
Jeremy DubinDepartment of Orthopaedic Surgery, Brigham and Women's Hospital, USA.
Ameer ElbulukDepartment of Orthopedic Surgery, NYU Langone Health, NYU Langone Orthopedic Hospital, USA.
James E FengDepartment of Orthopedic Surgery, NYU Langone Health, NYU Langone Orthopedic Hospital, USA.
Richard IorioRubin Institute for Advanced Orthopaedics, Baltimore, MD, USA.
Ran SchwarzkopfDepartment of Orthopedic Surgery, NYU Langone Health, NYU Langone Orthopedic Hospital, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: There is conflicting evidence in the literature regarding the clinical utility of tourniquets in total knee arthroplasty (TKA), specifically in regards to perioperative blood loss. In this meta-analysis and systematic review, we aim to evaluate the clinical advantages and disadvantages associated with tourniquet use in the setting of TKA. Methods: A systematic review was conducted through April 2017 using keywords: "tourniquet" and "total knee arthroplasty" or "total knee replacement". Perioperative variables including TXA use, blood loss, incidence of venous thromboembolism (VTE), and wound complications were either extracted from the studies or corresponding authors were contacted. A sub-analysis was conducted to evaluate the effects of TXA on intraoperative and total blood loss (TBL), and VTE incidence. Results: After review of 558 articles, 19 studies reporting outcomes in 1094 patients were analyzed. Intraoperative blood loss was significantly lower in the tourniquet cohorts compared to non-tourniquet (p < 0.01). TBL was reduced in tourniquet groups but not significantly (p = 0.08). In contrast, calculated blood loss was greater in tourniquet groups, but this difference was not significant (p = 0.43). There was a greater likelihood for wound complications and VTE among tourniquet assisted TKA, albeit only significant for the former (p = 0.01). TXA sub-analysis demonstrated intraoperative blood loss was significantly reduced with tourniquet use regardless of TXA implementation (p < 0.01). In studies without TXA, tourniquet patients were at greater risk of developing VTE (p = 0.08). These risks decreased with TXA administration. Conclusion: This meta-analysis demonstrates that tourniquets prevent intraoperative blood loss, yet within the postoperative period, there is no significant difference in TBL between tourniquet and non-tourniquet assisted TKA. Level of evidence: Level II; Systematic Review and Meta-Analysis.

Indexed as

Blood lossMeta-analysisSystematic reviewTotal knee arthroplastyTourniquetTranexamic acid

Identifiers

PMID39035782
PMCPMC11259989

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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.