Evidence map›Paper›PMID 26457293›Full record

ArticleCMAJ open

Postoperative antibiotic prophylaxis in total hip and knee arthroplasty: a systematic review and meta-analysis of randomized controlled trials.

Patrick Thornley, Nathan Evaniew, Michael Riediger, Mitchell Winemaker, Mohit Bhandari, Michelle Ghert

Open access · diamondAbstract read
In one paragraph

Article in CMAJ open. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 pooled it
4.7field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it, 54 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

6 authors at 1 institution in 1 country.

Patrick ThornleyFaculty of Health Sciences (Thornley), Michael G. DeGroote School of Medicine; Division of Orthopaedics (Evanview, Riediger, Winemaker, Bhandari, Ghert), Department of Surgery; Department of Clinical Epidemiology and Biostatistics (Bhandari), McMaster University, Hamilton, Ont.
Nathan EvaniewFaculty of Health Sciences (Thornley), Michael G. DeGroote School of Medicine; Division of Orthopaedics (Evanview, Riediger, Winemaker, Bhandari, Ghert), Department of Surgery; Department of Clinical Epidemiology and Biostatistics (Bhandari), McMaster University, Hamilton, Ont.
Michael RiedigerFaculty of Health Sciences (Thornley), Michael G. DeGroote School of Medicine; Division of Orthopaedics (Evanview, Riediger, Winemaker, Bhandari, Ghert), Department of Surgery; Department of Clinical Epidemiology and Biostatistics (Bhandari), McMaster University, Hamilton, Ont.
Mitchell WinemakerFaculty of Health Sciences (Thornley), Michael G. DeGroote School of Medicine; Division of Orthopaedics (Evanview, Riediger, Winemaker, Bhandari, Ghert), Department of Surgery; Department of Clinical Epidemiology and Biostatistics (Bhandari), McMaster University, Hamilton, Ont.
Mohit BhandariFaculty of Health Sciences (Thornley), Michael G. DeGroote School of Medicine; Division of Orthopaedics (Evanview, Riediger, Winemaker, Bhandari, Ghert), Department of Surgery; Department of Clinical Epidemiology and Biostatistics (Bhandari), McMaster University, Hamilton, Ont.
Michelle GhertFaculty of Health Sciences (Thornley), Michael G. DeGroote School of Medicine; Division of Orthopaedics (Evanview, Riediger, Winemaker, Bhandari, Ghert), Department of Surgery; Department of Clinical Epidemiology and Biostatistics (Bhandari), McMaster University, Hamilton, Ont.
Population Health Research Institute · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPostoperative antibiotic prophylaxis is currently the standard of care for patients undergoing total hip and knee arthroplasty. We evaluated the evidence for this practice in the reduction of surgical-site infections.

methodsWe systematically searched MEDLINE, Embase and the Cochrane Library for randomized controlled trials (RCTs) published up to Aug. 15, 2014. We included all RCTs that compared postoperative antibiotic prophylaxis with postoperative placebo or no treatment in patients undergoing primary total hip or knee arthroplasty for osteoarthritis. We combined outcomes for surgical-site infection using a random-effects model and quantified heterogeneity using the χ2 test and the I2 statistic. We assessed the overall quality of the evidence according to the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach.

resultsWe identified 4 RCTs (n = 4036) that met the inclusion criteria. Surgical-site infections occurred in 3.1% (63/2055) of patients in the prophylaxis group and 2.3% (45/1981) in the control group. Postoperative prophylaxis did not reduce the rate of surgical-site infections compared with placebo (risk difference 0.01, 95% confidence interval 0.00 to 0.02; I2 = 26%). This result was robust to sensitivity testing for losses to follow-up. According to the GRADE approach, the overall quality of evidence was very low.

interpretationThe available evidence did not show efficacy of postoperative antibiotic prophylaxis for the prevention of surgical-site infections in patients undergoing total hip or knee arthroplasty. Multicentred RCTs are likely to have an important impact on the confidence in the effect estimate and to change the estimate itself.

Identifiers

PMID26457293
PMCPMC4596117
OpenAlexW2208225789

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.