ReviewEuropean radiology2020
The Lisbon Agreement on Femoroacetabular Impingement Imaging-part 1: overview.
Review in European radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 52 papers, 4 of them syntheses that pooled 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.
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.
Who cites it
52 citing papers in PubMed, 4 syntheses or guidelines pooled it, 98 citations in OpenAlex.
- Guideline
- Guideline
- Soft tissue tumor imaging in adults: European Society of Musculoskeletal Radiology-Guidelines 2023-overview, and primary local imaging: how and where?European radiology · 2024Guideline
- There is no definite consensus on the adequate radiographic correction in arthroscopic osteochondroplasty for femoroacetabular impingement: a systematic review and meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Pooled it
- The Management of Acetabular Labral Tears: A Contemporary Review.Current reviews in musculoskeletal medicine · 2026Review
- [Imaging in hip disorders in childhood and adolescence].Orthopadie (Heidelberg, Germany) · 2026Review
- ChatGPT delivers mostly satisfactory but occasionally inaccurate and potentially unsafe answers to hip arthroscopy questions during the surgeon's learning curve.Journal of experimental orthopaedics · 2026Article
- Cam morphology and the development of femoroacetabular impingement syndrome and hip osteoarthritis.Nature reviews. Rheumatology · 2026Review
- EUROVISCO Recommendations for the Use of Viscosupplementation with Hyaluronic Acid in the Management of Hip Osteoarthritis.Cartilage · 2026Article
- Zero Echo Time MRI for Osseous Assessment of Sports-Related Pathology in Athletes: A Pictorial Essay.Journal of the Belgian Society of Radiology · 2026Article
- Arthroscopic cam resection reduces femoroacetabular contact pressure : a cadaver study.Bone & joint research · 2025Article
- Deep learning-based acceleration of high-resolution compressed sense MR imaging of the hip.European journal of radiology open · 2025Article
- Ischiofemoral impingement in joint preserving hip surgery: prevalence and imaging predictors.Insights into imaging · 2025Article
- Direct MR arthrography without image guidance: a practical guide, joint-by-joint.Skeletal radiology · 2025Review
- Current understanding of articular cartilage lesions in femoroacetabular impingement syndrome.Journal of orthopaedic surgery and research · 2024Review
- Femoroacetabular Impingement Morphological Changes in Sample of Patients Living in Southern Mexico Using Tomographic Angle Measures.Tomography (Ann Arbor, Mich.) · 2024Article
- Overview for developing Delphi-based interdisciplinary consensus statements on imaging: pros and cons.Journal of ultrasonography · 2024Article
- CT-guided infiltration of the ischiofemoral space in young patients with ischiofemoral impingement is an effective diagnostic tool.Insights into imaging · 2024Article
- Femoral head decentration on hip MRI: comparison between imaging planes, methods of contrast administration, and hip deformities.Insights into imaging · 2024Article
- High prevalence of former elite ice hockey players requiring early hip arthroplasty surgery.Journal of hip preservation surgery · 2024Article
Corrections and comments
- Erratum issued
Authors and funding
31 authors at 20 institutions in 12 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesImaging assessment for the clinical management of femoroacetabular impingement (FAI) syndrome remains controversial because of a paucity of evidence-based guidance and notable variability in clinical practice, ultimately requiring expert consensus. The purpose of this agreement is to establish expert-based statements on FAI imaging, using formal techniques of consensus building.
methodsA validated Delphi method and peer-reviewed literature were used to formally derive consensus among 30 panel members (21 musculoskeletal radiologists and 9 orthopaedic surgeons) from 13 countries. Forty-four questions were agreed on, and recent relevant seminal literature was circulated and classified in five major topics ('General issues', 'Parameters and reporting', 'Radiographic assessment', 'MRI' and 'Ultrasound') in order to produce answering statements. The level of evidence was noted for all statements, and panel members were asked to score their level of agreement with each statement (0 to 10) during iterative rounds. Either 'consensus', 'agreement' or 'no agreement' was achieved.
resultsForty-seven statements were generated, and group consensus was reached for 45 (95.7%). Seventeen of these statements were selected as most important for dissemination in advance. There was no agreement for the two statements pertaining to 'Ultrasound'.
conclusionRadiographic evaluation is the cornerstone of hip evaluation. An anteroposterior pelvis radiograph and a Dunn 45° view are recommended for the initial assessment of FAI although MRI with a dedicated protocol is the gold standard imaging technique in this setting. The resulting consensus can serve as a tool to reduce variability in clinical practices and guide further research for the clinical management of FAI. KEY POINTS: • FAI imaging literature is extensive although often of low level of evidence. • Radiographic evaluation with a reproducible technique is the cornerstone of hip imaging assessment. • MRI with a dedicated protocol is the gold standard imaging technique for FAI assessment.
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Registered trials
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.