Evidence map›Paper›PMID 40242886›Full record

SynthesisActa orthopaedica2025

Association of femoral retroversion and out-toeing gait with development of hip osteoarthritis and treatment: a systematic review.

Christos Tsagkaris, Thomas Dreher, Patrick Zingg, Matthias Rüger

Abstract readSystematic Review
In one paragraph

Synthesis in Acta orthopaedica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Christos TsagkarisDepartment of Pediatric Orthopedics and Traumatology, University Children's Hospital, University of Zurich, Zürich, Switzerland. tsagkarisc@gmail.com.ORCID 0000-0002-4250-574X
Thomas DreherDepartment of Pediatric Orthopedics and Traumatology, University Children's Hospital, University of Zurich, Zürich; Pediatric Orthopedics, Balgrist University Hospital, University of Zurich, Zürich, Switzerland.
Patrick ZinggDepartment of Orthopedics, Balgrist University Hospital, University of Zurich, Zürich, Switzerland.
Matthias RügerDepartment of Pediatric Orthopedics and Traumatology, University Children's Hospital, University of Zurich, Zürich; Laboratory for Bone Biomechanics, Institute for Biomechanics, ETH Zürich, Zürich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeFemoral retroversion (FR) is known to be a predisposing factor for femoro-acetabular impingement and is hypothesized to constitute a risk factor for early osteoarthritis of the hip. We performed a systematic review to comprehensively evaluate the evidence for FR being associated with hip osteoarthritis (OA) and the results of early treatment among adolescents and young adults.

methodsA systematic literature search was conducted in biomedical databases (PubMed, Scopus, Web of Science, Cochrane, Google Scholar) from 1970 to 2023. Inclusion criteria were studies in English or German. Studies were selected based on predefined criteria and according to PRISMA guidelines.

resultsOf 37 initial records, 11 studies were included, involving 1,807 patients and 785 cadavers. Most studies were conducted in North America (7), Europe (3), and Australia (1). Diagnostic modalities included clinical examination, radiography, computed tomography, and magnetic resonance imaging. Findings from preclinical and clinical studies suggest an association between FR and hip pain, impingement, and OA. Studies reported that 5-11% of patients requiring total hip replacement exhibited FR and emphasized pain in young adults as a prompt for torsional assessment. However, contradictory results regarding the need for surgical correction were found. Surgery appears effective in relieving hip pain. Concerns exist regarding spontaneous correction at a young age and the risk of overcorrection with surgery.

conclusionOur review underscores the lack of evidence regarding FR as a risk factor for hip osteoarthritis, and contradictory results regarding the need for surgical correction were found.

Indexed as

Femoracetabular ImpingementFemurGaitOsteoarthritis, HipAdolescentArthroplasty, Replacement, HipHumansRisk FactorsYoung Adult

Identifiers

PMID40242886
PMCPMC12006038

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.