Evidence map›Paper›PMID 28948032›Full record

ReviewJournal of hip preservation surgery2017

Preoperative physical examination and imaging of femoroacetabular impingement prior to hip arthroscopy-a systematic review.

Chloe E Haldane, Seper Ekhtiari, Darren de Sa, Nicole Simunovic, Olufemi R Ayeni

Abstract readReview
In one paragraph

Review in Journal of hip preservation surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. The Management of Acetabular Labral Tears: A Contemporary Review.Current reviews in musculoskeletal medicine · 2026
    Review
  4. Article
  5. Defining the postoperative alpha angle threshold for improved outcomes in posterolateral cam lesions.Hip international : the journal of clinical and experimental research on hip pathology and therapy · 2026
    Article
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  7. Article
  8. Article
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  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. 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

5 authors.

Chloe E HaldaneMichael G. DeGroote School of Medicine, 1280 Main St. W., Hamilton, ON, L8S 4K1, Canada.
Seper EkhtiariMichael G. DeGroote School of Medicine, 1280 Main St. W., Hamilton, ON, L8S 4K1, Canada.
Darren de SaDivision of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, 1200 Main St. W., Room 4E15, Hamilton, ON, L8N 3Z5, Canada.
Nicole SimunovicDepartment of Clinical Epidemiology and Biostatistics, Centre for Evidence-Based Orthopaedics, McMaster University, Hamilton, ON, Canada.
Olufemi R AyeniDivision of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, 1200 Main St. W., Room 4E15, Hamilton, ON, L8N 3Z5, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this systematic review is to report current preoperative assessment for femoroacetabular impingement (FAI) including physical examination and imaging modalities prior to hip arthroscopy, and report current imaging measures used in the diagnosis of FAI. The electronic databases MEDLINE, EMBASE and PubMed were searched and screened in duplicate for relevant studies. Data regarding patient demographics, non-operative treatment, preoperative assessment including physical examination and imaging prior to hip arthroscopy were abstracted. Study quality was assessed in duplicate using the Methodological Index for Non-Randomized Studies criteria. Sixty-eight studies of fair quality evidence that involved a total of 5125 patients (5400 hips) were included. In total, 56% of all patients were male and mean age was 36 years (SD ± 10.0). Within physical examination, FADIR impingement testing was reported in 57% of patients. All included studies reported plain radiographic imaging as a component of preoperative assessment with anterior-posterior pelvis view being the most commonly reported view, followed by the cross-table lateral and Dunn views. Magnetic resonance imaging was obtained for 52% of included patients and computed tomography for 26% of patients. The most commonly reported measure within imaging for the diagnosis of cam type impingement was alpha angle (66%), whereas for pincer type impingement, the cross-over sign (48%) was most reported. Preoperative assessment is underreported in the FAI literature. Improved reporting is warranted to develop a more consistent and validated diagnostic algorithm for FAI to enhance patient selection.

Identifiers

PMID28948032
PMCPMC5604278

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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.