Evidence map›Paper›PMID 30259148›Full record

SynthesisKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020

The dimensions of the hip capsule can be measured using magnetic resonance imaging and may have a role in arthroscopic planning.

Jeffrey Kay, Muzammil Memon, Serena Rubin, Nicole Simunovic, Shane J Nho, Etienne L Belzile, Olufemi R Ayeni

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–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

17 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Ultrasound Evaluation of the Hip.Current reviews in musculoskeletal medicine · 2024
    Review
  7. Article
  8. Article
  9. Article
  10. Capsular Management During Hip Arthroscopy.Current reviews in musculoskeletal medicine · 2023
    Review
  11. Femoral neck-shaft angle can predict the anterior capsular thickness in patients with femoracetabular impingement syndrome.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  12. Article
  13. Changes in Hip Capsule Morphology after Arthroscopic Treatment for Femoroacetabular Impingement Syndrome with Periportal Capsulotomy are Correlated With Improvements in Patient-Reported Outcomes.Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association · 2022
    Article
  14. Article
  15. Hip arthroscopy with initial access to the peripheral compartment provides significant improvement in FAI patients.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
  16. Correlation of hip capsule morphology with patient symptoms from femoroacetabular impingement.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2021
    Article
  17. Review
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

7 authors.

Jeffrey KayDivision of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, 1200 Main St West, 4E15, Hamilton, ON, L8N 3Z5, Canada.
Muzammil MemonDivision of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, 1200 Main St West, 4E15, Hamilton, ON, L8N 3Z5, Canada.
Serena RubinDepartment of Medicine, University of Toronto, Toronto, ON, Canada.
Nicole SimunovicDivision of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, 1200 Main St West, 4E15, Hamilton, ON, L8N 3Z5, Canada.
Shane J NhoSection of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopedic Surgery, Rush University Medical Center, Rush Medical College of Rush University, Chicago, IL, USA.
Etienne L BelzileCHU de Québec-Université Laval, Québec, QC, Canada.
Olufemi R AyeniDivision of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, 1200 Main St West, 4E15, Hamilton, ON, L8N 3Z5, Canada. ayenif@mcmaster.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to systematically evaluate the dimensions and thickness of the hip joint capsule. Secondarily, the study assessed whether there were any described correlations between capsule thickness and stability of the hip joint.

methodsFour databases (PubMed, Ovid [MEDLINE], Cochrane Database, and EMBASE) were searched from database inception to May 2018, and two reviewers independently and in duplicate screened the resulting literature. Methodological quality of all included papers was assessed using the Methodological index for non-randomized studies (MINORS) criteria. Mean differences were combined in a meta-analysis using a random effects model when possible.

resultsA total of 14 studies (1 level I, 1 level II, 4 level III, 5 level IV) were identified including 796 patients (1013 hips) with a mean age of 39.5 years (range 2-95). Of the included patients, 55.2% were female and they were followed up for a mean of 7.6 months (range 1-12.5 months). The thickness of the capsule was measured in cadaveric specimens, ultrasound, and magnetic resonance imaging (MRI), with MRI measurements reported most consistently and with the least variation. Mean thickness of the anterior capsule in patients without hip disease on MRI ranged from 4.4 and 4.7 mm. Mean thickness of the anterior capsule in patients with FAI ranged between 4.9 and 5.0 mm. Males had significantly thicker capsules than females (mean difference = 1.92 mm, 0.35-3.49, P = 0.02). Clinical laxity of the hip joint, as well as female gender was correlated with thinner anterior joint capsules.

conclusionThe thickness of the anterior hip capsule can be measured consistently using MRI. A thinner anterior capsule may be associated with clinical laxity of the hip joint. The relevance of capsular thickness on postoperative instability following hip arthroscopy is poorly understood and warrants further investigation. The thickness of the anterior hip capsule, as measured on MRI, has the potential to be used as part of the clinical decision-making in capsular management strategies. LEVEL OF EVIDENCE: IV.

Indexed as

ArthroscopyHip JointHumansJoint CapsuleMagnetic Resonance ImagingPostoperative PeriodArthroscopyCapsuleHipThickness

Identifiers

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.