Evidence map›Paper›PMID 24602486›Full record

SynthesisJournal of orthopaedic surgery and research2014

The effects of a tourniquet used in total knee arthroplasty: a meta-analysis.

Wei Zhang, Ning Li, Sifeng Chen, Yang Tan, Mohammed Al-Aidaros, Liaobin Chen

4 registry-linked trialsOpen access · goldAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Journal of orthopaedic surgery and research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 120 papers, 12 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
120citing papers in PubMed, 12 pooled it
8.6field-weighted citation impact, top 1% 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.

NCT02830087 naterminatednot on this mapstarted 2016, after this paper: background citation

The Effect of Tourniquet Time and Pressure on Intraoperative and Postoperative Performance, Function, Pain, and Complications in Primary Total Knee Arthroplasty.

TypeinterventionalSponsorWake Forest University Health SciencesRan2016 to 2016Enrolled21ConditionsTourniquets, Knee Arthroplasty, Total, Knee Replacement, TotalArmsTourniquet Cuff Pressure
NCT03931837 naunknown statusnot on this mapstarted 2019, after this paper: background citation

Efficacy Testing of Different Tourniquet Pressure Used for Postoperative Pain Reduction in Total Knee Arthroplasty: A Prospective, Randomized Controlled Trials

TypeinterventionalSponsorThammasat UniversityRan2019 to 2020Enrolled150ConditionsOsteoarthritis, KneeArmsTourniquet: Systolic blood pressure + 75 mmHg, Tourniquet: Systolic blood pressure + 100 mmHg, Tourniquet: Systolic blood pressure + 150 mmHg
NCT05691751 nacompletednot on this mapstarted 2021, after this paper: background citation

Blood Loss Assessment in the Limited Application of Tourniquet During Primary Unilateral TKA: a Randomized Controlled Study

TypeinterventionalSponsorDamascus UniversityRan2021 to 2022Enrolled62ConditionsArthritis Knee, Blood Loss, Arthroplasty ComplicationsArmsprimary unilateral total knee arthroplasty with limited application of tourniquet, primary unilateral total knee arthroplasty with full application of tourniquet
NCT06863688 naenrolling by invitationnot on this mapstarted 2024, after this paper: background citation

Does Tourniquet Utilization Negatively Impact Patient Pain and Outcomes Following Operative Fixation of Rotational Ankle Fractures? A Randomized Clinical Trial.

TypeinterventionalSponsorAlex DemersRan2024 to 2026Enrolled100ConditionsAnkle FractureArmsTourniquet, No Tourniquet
3 · Its place in the literature

Who cites it

120 citing papers in PubMed, 12 syntheses or guidelines pooled it, 246 citations in OpenAlex.

  1. Total knee arthroplasty with or without a tourniquet: a meta-analysis of randomized controlled trials.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
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  4. The risks associated with tourniquet use in lower limb trauma surgery: a systematic review and meta-analysis.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2021
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  6. Tourniquet use for knee replacement surgery.The Cochrane database of systematic reviews · 2020
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  7. More pain and slower functional recovery when a tourniquet is used during total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
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  11. Tourniquet use in lower limb fracture surgery: a systematic review and meta-analysis.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019
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60 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Wei Zhang
Ning Li
Sifeng Chen
Yang Tan
Mohammed Al-Aidaros
Liaobin ChenDepartment of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China. lbchen@whu.edu.cn.
Wuhan University · CNFirst Affiliated Hospital of Zhengzhou University · CNZhongnan Hospital of Wuhan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe purpose of this research is to evaluate the effects of a tourniquet in total knee arthroplasty (TKA).

methodsThe study was done by randomized controlled trials (RCTs) on the effects of a tourniquet in TKA. All related articles which were published up to June 2013 from Medline, Embase, and Cochrane Central Register of Controlled Trails were identified. The methodological quality of the included studies was assessed by the Physiotherapy Evidence Database (PEDro) scale. The meta-analysis was performed using Cochrane RevMan software version 5.1.

resultsThirteen RCTs that involved a total of 689 patients with 689 knees were included in the meta-analysis, which were divided into two groups. The tourniquet group included 351 knees and the non-tourniquet group included 338 knees. The meta-analysis showed that using a tourniquet in TKA could reduce intraoperative blood loss (weighted mean difference (WMD), -198.21; 95% confidence interval (CI), -279.82 to -116.60; P<0.01) but did not decrease the calculated blood loss (P=0.80), which indicates the actual blood loss. Although TKA with a tourniquet could save the operation time for 4.57 min compared to TKA without a tourniquet (WMD, -4.57; 95% CI, -7.59 to -1.56; P<0.01), it had no clinical significance. Meanwhile, the use of tourniquet could not reduce the possibility of blood transfusion (P>0.05). Postoperative knee range of motion (ROM) in tourniquet group was 10.41° less than that in the non-tourniquet group in early stage (≤ 10 days after surgery) (WMD, -10.41; 95% CI, -16.41 to -4.41; P<0.01). Moreover, the use of a tourniquet increased the risk of either thrombotic events (risk ratio (RR), 5.00; 95% CI, 1.31 to 19.10; P=0.02) or non-thrombotic complications (RR, 2.03; 95% CI, 1.12 to 3.67; P=0.02).

conclusionsTKA without a tourniquet was superior to TKA with a tourniquet in thromboembolic events and the other related complications. There were no significant differences between the two groups in the actual blood loss. TKA with a tourniquet might hinder patients' early postoperative rehabilitation exercises.

Indexed as

Arthroplasty, Replacement, KneeBlood Loss, SurgicalBlood TransfusionHemostasis, SurgicalHumansIntraoperative ComplicationsRandomized Controlled Trials as TopicRange of Motion, ArticularTourniquetsTreatment Outcome

Identifiers

PMID24602486
PMCPMC3973857
OpenAlexW2112536023

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.