Evidence map›Paper›PMID 24817022›Full record

SynthesisInternational orthopaedics2014

Meta-analysis of randomised controlled trials comparing unipolar with bipolar hemiarthroplasty for displaced femoral-neck fractures.

Yang Liu, Xueqiang Tao, Pei Wang, Zheng Zhang, Wenlong Zhang, Quan Qi

Abstract readComparative StudyMeta-Analysis
In one paragraph

Synthesis in International orthopaedics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 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, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Review
  8. Anteromedial femoral neck plate with cannulated screws for the treatment of irreducible displaced femoral neck fracture in young patients: a preliminary study.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2019
    Article
  9. Article
  10. Review
  11. Article
  12. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Yang LiuDepartment of Orthopaedics, The First Affiliated Hospital of Harbin Medical University, No. 23 You Zheng Street, Harbin, 150001, China.
Xueqiang Tao
Pei Wang
Zheng Zhang
Wenlong Zhang
Quan Qi

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeUnipolar and bipolar hemiarthroplasty (HA) are used to treat displaced femoral-neck fractures. However, which type is best for treating displaced femoral-neck fractures in elderly patients remains a subject for debate. Our aim was to review randomised controlled trials to establish which type provides superior clinical outcome for this patient population.

methodsWe searched PubMed, Embase and Cochrane Register of Controlled Trials databases and Web of Science for randomised controlled trials (RCTs) comparing unipolar with bipolar HA to treat femoral-neck fracture in the elderly. Risk ratios (RRs) and mean differences (MDs) from each trial were pooled using random-effects or fixed-effects models depending on study heterogeneity. Analysis was performed using RevMan5.2 from the Cochrane Collaboration.

resultsA total of 1,100 patients from nine studies were assessed in this meta-analysis. Results showed no significant differences in function score [MD = -0.14, 95% confidence interval (CI) -2.42-2.13], mortality (RR = 0.97, 95% CI 0.65-1.46), dislocation (RR = 1.33, 95% CI 0.53-3.34), deep infection (RR = 0.79, 95% CI 0.35-1.79), acetabular erosion (RR = 1.99, 95% CI 0.61-6.52), operating time (MD = 2.14, 95% CI -9.85 to14.14), blood loss (MD = 13.40, 95% CI -49.60 to 76.39) and length of hospital stay (MD = 0.12, 95% CI -0.49 to 0.73) between unipolar and bipolar HA.

conclusionsUnipolar and bipolar HA achieved similar clinical outcomes in patients with displaced femoral-neck fractures.

Indexed as

Randomized Controlled Trials as TopicAgedAged, 80 and overFemoral Neck FracturesFollow-Up StudiesHemiarthroplastyHumansLength of StayOperative TimeOutcome Assessment, Health CareTreatment Outcome

Identifiers

PMID24817022
PMCPMC4115101

What OpenQuestion holds

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Registered trials

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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.