Evidence map›Paper›PMID 33163215›Full record

ArticleJournal of hip preservation surgery2020

Capsular thinning on magnetic resonance arthrography is associated with intra-operative hip joint laxity in women.

Jonathan D Packer, Michael J Foster, Geoffrey M Riley, Russell Stewart, Kotaro R Shibata, Michael L Richardson, Robert D Boutin, Marc R Safran

Open access · diamondAbstract read
In one paragraph

Article in Journal of hip preservation surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

11 citing papers in PubMed, 25 citations in OpenAlex.

  1. A study on the factors associated with the dimensions of the iliocapsularis muscle.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2025
    Article
  2. Article
  3. Article
  4. Article
  5. Diagnosing Hip Microinstability: an international consensus study using the Delphi methodology.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Review
  6. Article
  7. Article
  8. Review
  9. Regarding the study by PackerJournal of hip preservation surgery · 2020
    Article
  10. Author response to 'Regarding the study by PackerJournal of hip preservation surgery · 2020
    Article
  11. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Jonathan D PackerDepartment of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.ORCID 0000-0002-6832-1033
Michael J FosterDepartment of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
Geoffrey M RileyDepartment of Radiology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Russell StewartDepartment of Radiology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Kotaro R ShibataDepartment of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
Michael L RichardsonDepartment of Radiology, University of Washington School of Medicine, Seattle, WA 98195, USA.
Robert D BoutinDepartment of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
Marc R SafranDepartment of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
Stanford University · USUniversity of Maryland, Baltimore · USUniversity of Washington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hip microinstability is a recognized cause of hip pain in young patients. Intra-operative evaluation is used to confirm the diagnosis, but limited data exist associating magnetic resonance arthrography (MRA) findings with hip microinstability. To determine if a difference exists in the thickness of the anterior joint capsule and/or the width of the anterior joint recess on MRA in hip arthroscopy patients with and without an intra-operative diagnosis of hip laxity. Sixty-two hip arthroscopy patients were included in the study. Two musculoskeletal radiologists blinded to surgical results reviewed the MRAs for two previously described findings: (i) anterior joint capsule thinning; (ii) widening of the anterior joint recess distal to the zona orbicularis. Operative reports were reviewed for the diagnosis of joint laxity. In all patients with and without intra-operative laxity, there were no significant differences with either MRA measurement. However, twenty-six of 27 patients with intra-operative laxity were women compared with 11 of 35 patients without laxity (

Identifiers

PMID33163215
PMCPMC7605766
OpenAlexW3048818341

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.