Evidence map›Paper›PMID 39993930›Full record

ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2025

Impact of Femoral and Tibial Torsion on Patellofemoral Loading in Individuals With Patellofemoral Instability.

Bernhard Guggenberger, Willi Koller, Andreas Habersack, Tanja Kraus, Matthias Sperl, Martin Svehlik, Hans Kainz

Abstract read
In one paragraph

Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Femoral neck anteversion among five canid taxa.Anatomical record (Hoboken, N.J. : 2007) · 2026
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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.

Bernhard GuggenbergerDepartment of Orthopaedics and Trauma, Medical University of Graz, Graz, Austria.ORCID 0000-0002-2826-2999
Willi KollerNeuromechanics Research Group, Department of Biomechanics, Kinesiology and Computer Science in Sport, Centre for Sport Science and University Sports, University of Vienna, Vienna, Austria.
Andreas HabersackDepartment of Orthopaedics and Trauma, Medical University of Graz, Graz, Austria.
Tanja KrausDepartment of Orthopaedics and Trauma, Medical University of Graz, Graz, Austria.
Matthias SperlDepartment of Orthopaedics and Trauma, Medical University of Graz, Graz, Austria.
Martin SvehlikDepartment of Orthopaedics and Trauma, Medical University of Graz, Graz, Austria.ORCID 0000-0002-0248-3275
Hans KainzNeuromechanics Research Group, Department of Biomechanics, Kinesiology and Computer Science in Sport, Centre for Sport Science and University Sports, University of Vienna, Vienna, Austria.

Funding

This study was supported by DocSchool Bone, Muscle, and Joint of the Medical University of Graz.
6 · The paper itself

Abstract

Patellofemoral stability is affected by several morphological factors including torsional alignment. To elucidate the impact of factors responsible for the stability of the patellofemoral joint, biomechanical research utilizes the analysis of joint contact forces. At present, there is a paucity of modeling-based research examining the influence of lower limb torsion on patellofemoral joint loading in individuals with patellofemoral instability. The objective of this study was to investigate the impact of the femoral version and tibial torsion on the patellofemoral joint loading. Musculoskeletal simulations were conducted based on 3D motion capture data of 40 individuals with patellofemoral instability using OpenSim. We created three models with different lower limb torsions for each participant: (i) generic torsion, (ii) personalized lower limb (femur and tibia) torsion, and (iii) isolated personalized femoral version model. We correlated femoral version and tibial torsion to differences in patellofemoral joint loading, muscle forces, and lever arms between models. Tibial torsion correlated to differences in mediolateral patellofemoral force (ρ = 0.39), whereas the femoral version showed no significant correlation to the differences in mediolateral patellofemoral force (ρ = 0.01). Notably, when neglecting individual tibial torsion, the femoral version correlated to differences in mediolateral patellofemoral force (ρ = 0.65). The femoral version can increase the lateralizing force on the patella, but this effect diminishes when addressing whole lower limb torsion in musculoskeletal simulations. Studies investigating solely the femoral version should, therefore, be interpreted with caution. Our findings underscore the necessity of evaluating whole lower limb torsion for a comprehensive assessment of its impact on patellofemoral stability and planning treatments. Level of Evidence: Retrospective cohort study, Level III.

Indexed as

FemurJoint InstabilityPatellofemoral JointTibiaAdolescentAdultBiomechanical PhenomenaFemaleHumansMaleTorsion, MechanicalYoung Adultfemoral versionpatella dislocationpatellofemoral instabilitytibial torsion

Identifiers

PMID39993930
PMCPMC11982600

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.