Evidence map›Paper›PMID 34052373›Full record

ArticleArthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association2022

Changes in Hip Capsule Morphology after Arthroscopic Treatment for Femoroacetabular Impingement Syndrome with Periportal Capsulotomy are Correlated With Improvements in Patient-Reported Outcomes.

Kevin H Nguyen, Chace Shaw, Thomas M Link, Sharmila Majumdar, Richard B Souza, Thomas P Vail, Alan L Zhang

Abstract read
In one paragraph

Article in Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Mid- to long-term outcomes of capsular management in hip arthroscopy for FAIS: A multilevel meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026
    Pooled it
  2. Capsular management strategies in hip arthroscopy for femoroacetabular impingement syndrome: A multilevel meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026
    Pooled it
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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

7 authors.

Kevin H NguyenDepartment of Orthopaedic Surgery, University of California-San Francisco, San Francisco.
Chace ShawDepartment of Orthopaedic Surgery, University of California-San Francisco, San Francisco.
Thomas M LinkMusculoskeletal and Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California-San Francisco, San Francisco, California, U.S.A.
Sharmila MajumdarMusculoskeletal and Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California-San Francisco, San Francisco, California, U.S.A.
Richard B SouzaMusculoskeletal and Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California-San Francisco, San Francisco, California, U.S.A.
Thomas P VailDepartment of Orthopaedic Surgery, University of California-San Francisco, San Francisco.
Alan L ZhangDepartment of Orthopaedic Surgery, University of California-San Francisco, San Francisco. Electronic address: Alan.zhang@ucsf.edu.

Funding

Structural, Biochemical and Functional Connectivity in Osteoarthritis using Quantitative Magnetic Resonance Imaging and Skeletal BiomechanicsR01AR069006 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MAJUMDAR, SHARMILA, SOUZA, RICHARD BRIAN · 2016 to 2025
$7.2M
Translation of Quantitative Imaging in OsteoarthritisP50AR060752 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SOUZA, RICHARD BRIAN · 2011 to 2015
$6.2M
Mentoring Biomechanics Research in OsteoarthritisK24AR072133 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Richard Brian Souza · 2018 to 2026
$1.5M
NIAMS NIH HHS K24 AR072133NIAMS NIH HHS P50 AR060752NIAMS NIH HHS R01 AR069006
6 · The paper itself

Abstract

purposeTo assess the correlation between changes in hip capsule morphology with improvements in patient-reported outcome (PRO) scores after arthroscopic surgery for femoroacetabular impingement syndrome (FAIS) using the periportal capsulotomy technique.

methodsTwenty-eight patients with cam morphology FAIS (without arthritis, dysplasia, or hypermobility) were prospectively enrolled before arthroscopic labral repair and femoroplasty through periportal capsulotomy (anterolateral/midanterior portals) without closure. Patients completed the Hip Disability and Osteoarthritis Outcomes Score (HOOS) and had nonarthrographic 3T magnetic resonance imaging (MRI) scans of the affected hip before and 1 year after surgery. Anterior capsule thickness, posterior capsule thickness, anterior-posterior capsule thickness ratio, and proximal-distal anterior capsule thickness ratio were measured on axial-oblique MRI sequences. Pearson correlation coefficients were calculated to determine the association between hip capsule morphology and PRO scores.

resultsPostoperative imaging showed that for all 28 patients (12 female), labral repairs and capsulotomies had healed within 1 year of surgery. Analysis revealed postoperative decreases in anterior hip capsule thickness (1395.4 ± 508.4 mm

conclusionsPeriportal capsulotomy without closure demonstrates capsule healing by 1 year after arthroscopic FAIS treatment. Changes in hip capsule morphology including decreased anterior-posterior capsule thickness ratio after surgery may be correlated with improvements in patient pain, function, and ability to return to sports. LEVEL OF EVIDENCE: Level II, prospective cohort study.

Indexed as

Femoracetabular ImpingementActivities of Daily LivingArthroscopyFemaleHip JointHumansPatient Reported Outcome MeasuresProspective StudiesRetrospective StudiesTreatment Outcome

Identifiers

PMID34052373
PMCPMC8895710

What OpenQuestion holds

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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.