Evidence map›Paper›PMID 31853580›Full record

ReviewDer Orthopade2020

[Torsional deformities of the femur in patients with femoroacetabular impingement : Dynamic 3D impingement simulation can be helpful for the planning of surgical hip dislocation and hip arthroscopy].

Till D Lerch, Florian Schmaranzer, Markus S Hanke, Christiane Leibold, Simon D Steppacher, Klaus A Siebenrock, Moritz Tannast

Open access · bronzeAbstract readReview
PubMed Publisher
In one paragraph

Review in Der Orthopade, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. [Femoroacetabular impingement in adolescents].Radiologie (Heidelberg, Germany) · 2023
    Review
  3. Review
  4. Article
  5. The Impact of Hip Dysplasia on CAM Impingement.Journal of personalized medicine · 2022
    Article
  6. Review
  7. 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 at 2 institutions in 1 country.

Till D LerchUniversitätsklinik für orthopädische Chirurgie und Traumatologie, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz. till.lerch@insel.ch.
Florian SchmaranzerUniversitätsklinik für orthopädische Chirurgie und Traumatologie, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
Markus S HankeUniversitätsklinik für orthopädische Chirurgie und Traumatologie, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
Christiane LeiboldUniversitätsklinik für orthopädische Chirurgie und Traumatologie, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
Simon D SteppacherUniversitätsklinik für orthopädische Chirurgie und Traumatologie, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
Klaus A SiebenrockUniversitätsklinik für orthopädische Chirurgie und Traumatologie, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
Moritz TannastUniversitätsklinik für orthopädische Chirurgie und Traumatologie, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
University Hospital of Bern · CHUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTorsional deformities of the femur include femoral retrotorsion and increased femoral torsion, which are possible causes for hip pain and osteoarthritis. For patients with femoroacetabular impingement (FAI), torsional deformities of the femur represent an additional cause of FAI in addition to cam and pincer-type FAI.

objectivesThe aim of this article is to provide an overview of measurement techniques and normal values of femoral torsion. The clinical presentation, possible combinations and surgical therapy of patients with torsional deformities of the femur will be discussed.

methodsFor measurement of femoral torsion, CT or MRI represent the method of choice. The various definitions should be taken into account, because they can lead to differing values and misdiagnosis. This is the case especially for patients with high femoral torsion. Dynamic 3D impingement simulation using 3D-CT can help to differentiate between intra und extra-articular FAI. RESULTS AND DISCUSSION: Femoral retrotorsion (< 5°) can lead to anterior intra- and extraarticular (subspine) FAI, between the anterior iliac inferior spine (AIIS) and the proximal femur. Increased femoral torsion (> 35°) can lead to posterior intra- and extra-articular ischiofemoral FAI, between the lesser/greater trochanter and the ischial tuberosity. During clinical examination, a patient with femoral retrotorsion exhibits loss of internal rotation and a positive anterior impingement test. Hips with increased femoral torsion show high internal rotation if examined in prone position and have a positive FABER and posterior impingement test. During surgical therapy for patients with torsional deformities, intra and extra-articular causes for FAI in addition to cam and pincer-deformities should be considered. In addition to hip arthroscopy and surgical hip dislocation, also femoral rotational or derotational osteotomies should be evaluated during surgical planning of these patients.

Indexed as

Imaging, Three-DimensionalArthroscopyBone MalalignmentFemoracetabular ImpingementFemurHip DislocationHip JointHumansMagnetic Resonance ImagingRange of Motion, ArticularRetrospective StudiesTorsion AbnormalityFemoral torsionHip jointImaging, three-dimensionalOsteoarthritisReference values

Identifiers

PMID31853580
OpenAlexW2995752016

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.