Evidence map›Paper›PMID 41085577›Full record

ArticleArchives of orthopaedic and trauma surgery2025

Effect of age, sex, height, ethnicity, and femoral bowing on the anatomical fitting of the LCP distal femur plate.

Beat Schmutz, Minh Tri Phan, Jeremy Pople, Bertha Ching Wai Lam, Eden Schoofs, Jacelle Warren, Jaimi Conlon, Hiroaki Minehara, Kevin Tetsworth, Michael Schuetz

Abstract read
In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

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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

1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Beat SchmutzQueensland University of Technology, Brisbane, Australia. b.schmutz@qut.edu.au.
Minh Tri PhanQueensland University of Technology, Brisbane, Australia.
Jeremy PopleJamieson Trauma Institute, Brisbane, Australia.
Bertha Ching Wai LamJamieson Trauma Institute, Brisbane, Australia.
Eden SchoofsJamieson Trauma Institute, Brisbane, Australia.
Jacelle WarrenQueensland University of Technology, Brisbane, Australia.
Jaimi ConlonQueensland University of Technology, Brisbane, Australia.
Hiroaki MineharaFukushima Medical University, Fukushima, Japan.
Kevin TetsworthJamieson Trauma Institute, Brisbane, Australia.
Michael SchuetzQueensland University of Technology, Brisbane, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLateral locking-plate fixation is commonly used for distal femur fractures. Pre-contoured plates attempt to match the bony anatomy of the target patient population. However, plate fit is highly variable due to inter-subject morphological differences. If plate misfit is not recognised and addressed, axial malalignment may arise. This study evaluates the effects of age, sex, height, ethnicity, and femoral bowing on the anatomical fit of a distal femur plate.

methodsUnilateral 3D models of 80 (40 male, 40 female) Caucasian and 79 (34 male, 45 female) Vietnamese femora were utilised. Both cohorts consisted of young (< 65 years) and old (≥ 65 years) subjects, with 40 young and 40 old Caucasian, and 36 young and 43 old Vietnamese. The plate undersurfaces of 9-, 11- and 13-hole LCP Distal Femur plate 3D models were positioned on bone models and anatomical fitting was assessed through application of developed clinical criteria.

resultsSatisfactory plate conformity was achieved from plate head up to hole 6, with most measurement locations fitting 52-100% of bones from both ethnicities. There was tendency towards proximal plate misfit from hole 8 onwards with 0-41% fit achieved in this region, and mean distances of 11.6 mm and 16.3 mm being observed at the proximal plate tip for Caucasians and Vietnamese respectively (p ≤ 0.017). Patient sex, height, ethnicity, and femoral bowing all had significant impacts on fit, while the effect of age was limited. Sex and ethnicity related height differences would suggest that patient height and femoral bowing are the main variables affecting fit.

conclusionsThe observed proximal plate misfit for both Caucasians and Vietnamese suggests LCP Distal Femur plates may exhibit less anatomical conformity than generally assumed. Where plates are used as a reduction tool, pre-operative templating of the intact contralateral femur may help identify plate misfit.

Indexed as

Bone PlatesFemoral FracturesFemurFracture Fixation, InternalAdultAgedAged, 80 and overAge FactorsAsian PeopleBody HeightFemaleHumansMaleMiddle AgedSex FactorsVietnam3D modelAnterior bowDistal femurFracturePlate fitPre-contoured plate

Identifiers

PMID41085577
PMCPMC12521290

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