Evidence map›Paper›PMID 19252958›Full record

ReviewClinical orthopaedics and related research2009

A systematic review of conflicting meta-analyses in orthopaedic surgery.

Patrick Vavken, Ronald Dorotka

Abstract readReviewComment
In one paragraph

Review in Clinical orthopaedics and related research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 6 pooled it
–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

12 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Dealing with clinical heterogeneity in meta-analysis. Assumptions, methods, interpretation.International journal of methods in psychiatric research · 2013
    Pooled it
  4. Treating anterior cruciate ligament tears in skeletally immature patients.Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association · 2011
    Pooled it
  5. Does autograft choice determine intermediate-term outcome of ACL reconstruction?Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2011
    Pooled it
  6. Pooled it
  7. Article
  8. Article
  9. Complications and cancer rates in spine fusion with recombinant human bone morphogenetic protein-2 (rhBMP-2).European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2016
    Article
  10. Article
  11. [Injection treatment with hyaluronic acid].Zeitschrift fur Rheumatologie · 2015
    Review
  12. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Patrick VavkenDepartment of Orthopedic Surgery, Children's Hospital Boston, Harvard Medical School, Boston, MA 02115, USA. patrick.vavken@childrens.harvard.edu
Ronald Dorotka

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Meta-analyses are important evaluations in orthopaedic surgery, not only to create clinical guidelines, but also because their findings are included in public health and health policy decision making. However, with increasing numbers of meta-analyses, discordant and frankly conflicting conclusions have been reported. We searched for conflicting meta-analyses, ie, those arriving at different conclusions despite following the same research question, identified potential reasons for these differences, and assessed the statistical significance and clinical importance of differences. We identified conflicting meta-analyses on graft choice in ACL reconstruction and the use of hyaluronic acid. We found significant differences in individual results only for meta-analyses on hyaluronic acid, but the 95% confidence intervals of the magnitude of differences included values as much as 40% for ACL meta-analyses. However, our findings suggest most conflicts derive from differences in the interpretation of pooled results rather than in the actual results. Thus conclusions and interpretations from meta-analyses should be scrutinized as critically as those from any other type of study and subjected to reassessment if deemed necessary.

Indexed as

Evidence-Based MedicineMeta-Analysis as TopicResearch DesignTendon TransferAnterior Cruciate LigamentAnterior Cruciate Ligament InjuriesData Interpretation, StatisticalHumansHyaluronic AcidOsteoarthritis, KneeRisk AssessmentTreatment OutcomeHyaluronic Acid

Identifiers

PMID19252958
PMCPMC2745448

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.