Evidence map›Paper›PMID 28401279›Full record

ReviewInternational orthopaedics2017

Current concepts in the diagnosis and management of extra-articular hip impingement syndromes.

Naoki Nakano, Grace Yip, Vikas Khanduja

Open access · hybridAbstract readReview
PubMed Publisher
In one paragraph

Review in International orthopaedics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 67 citations in OpenAlex.

  1. Treatment strategies for ischiofemoral impingement: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Pooled it
  2. Article
  3. Influence of Pelvic Tilt and Bone Morphology on Extra-Articular Bony Impingement in Total Hip Arthroplasty.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026
    Article
  4. Endoscopic Osteochondroma Resection for Treatment of Ischiofemoral Impingement Through Posterior Approach: A Case Report.Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Pathogenesis and contemporary diagnoses for lateral hip pain: a scoping review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
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

3 authors at 1 institution in 1 country.

Naoki NakanoConsultant Orthopaedic Surgeon & Associate Lecturer, Department of Trauma and Orthopaedics, Addenbrooke's - Cambridge University Hospitals NHS Foundation Trust, Box 37, Hills Road, Cambridge, CB2 0QQ, UK.
Grace YipConsultant Orthopaedic Surgeon & Associate Lecturer, Department of Trauma and Orthopaedics, Addenbrooke's - Cambridge University Hospitals NHS Foundation Trust, Box 37, Hills Road, Cambridge, CB2 0QQ, UK.
Vikas KhandujaConsultant Orthopaedic Surgeon & Associate Lecturer, Department of Trauma and Orthopaedics, Addenbrooke's - Cambridge University Hospitals NHS Foundation Trust, Box 37, Hills Road, Cambridge, CB2 0QQ, UK. vk279@cam.ac.uk.ORCID 0000-0001-9454-3978
Cambridge University Hospitals NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeExtra-articular hip impingement syndromes encompass a group of conditions that have previously been an unrecognised source of pain in the hip and on occasion been associated with intra-articular hip impingement as well. As arthroscopic techniques for the hip continue to evolve, the importance of these conditions has been recognised recently and now form an important part of the differential of an individual presenting with hip pain. The aim of this article, therefore, is to provide the reader with an evidence-based and comprehensive update of these syndromes.

methodsBy reviewing past literature, the anatomy, pathophysiology, clinical features and the management of the five common extra-articular hip impingement syndromes were described.

resultsThe common extra-articular impingement syndromes are: 1) Ischiofemoral impingement: quadratus femoris muscle becomes compressed between the lesser trochanter and the ischial tuberosity. 2) Subspine impingement: mechanical conflict occurs between an enlarged or malorientated anterior inferior iliac spine and the distal anterior femoral neck. 3) Iliopsoas impingement: mechanical conflict occurs between the iliopsoas muscle and the labrum, resulting in distinct anterior labral pathology. 4) Deep gluteal syndrome: pain occurs in the buttock due to the entrapment of the sciatic nerve in the deep gluteal space. 5) Pectineofoveal impingement: pain occurs when the medial synovial fold impinges against overlying soft tissue, primarily the zona orbicularis. Knowledge for these syndromes still remains limited for reasons mostly relating to their low prevalence and their co-existence with typical femoro-acetabular impingement.

conclusionsThe knowledge of extra-articular hip impingement syndromes is essential and should form a part of the differential diagnoses alongside intra-articular pathology including femoro-acetabular impingement particularly in the younger patient with a non-arthritic hip.

Indexed as

Hip JointDiagnosis, DifferentialFemoracetabular ImpingementHumansJoint DiseasesMusculoskeletal PainSyndromeArthroscopyDeep gluteal syndromeExtra-articular impingementHip painIliopsoas impingementIschiofemoral impingementPectineofoveal impingementSubspine impingement

Identifiers

PMID28401279
OpenAlexW2606232800

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.