Evidence map›Paper›PMID 33553545›Full record

ArticleArthroplasty today2021

Biomechanical Behavior of an Hydroxyapatite-Coated Traditional Hip Stem and a Short One of Similar Design: Comparative Study Using Finite Element Analysis.

Jesús Gómez-Vallejo, Jorge Roces-García, Jesús Moreta, Daniel Donaire-Hoyas, Óscar Gayoso, Fernando Marqués-López, Jorge Albareda

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Article in Arthroplasty today, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

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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

5 citing papers in PubMed.

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4 · The record

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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.

Jesús Gómez-VallejoDepartment of Orthopaedic Surgery, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain.
Jorge Roces-GarcíaDepartment of Construction and Manufacturing Engineering, University of Oviedo, Oviedo, Spain.
Jesús MoretaGroup of Lower Limb Reconstructive Surgery, Biocruces Bizkaia Health Research Institute, Osakidetza. Department of Orthopaedic Surgery and Traumatology, Hospital Galdakao-Usansolo, Bizkaia, Spain.
Daniel Donaire-HoyasDepartment of Orthopaedic Surgery, Hospital de Poniente, El Ejido, Spain.
Óscar GayosoDepartment of Orthopaedic Surgery, Hospital San Rafael, La Coruña, Spain.
Fernando Marqués-LópezHip Reconstruction Unit, Parc de Salut Mar, Barcelona, Spain.
Jorge AlbaredaDepartment of Orthopaedic Surgery, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe objective is to compare, by the means of finite elements analysis, the biomechanical behavior of a conventional stem of proven performance with a short stem based on the same fixation principles.

methodsA 3D femur was modeled from CT scan data, and real bone density measures were incorporated into it. Load stresses were applied to that bone in 3 different scenarios: without prosthesis, with the conventional stem, and with the short stem. Different bone loading patterns were compared by Gruen's zones both visually and statistically using Welch's test.

resultsThe implantation of a stem generates a certain degree of stress shielding in the surrounding bone, but the pattern of the change is very similar in the compared stem models. Although there is statistical significance (

conclusionsThe bone loading patterns of the traditional stem and the short stem are very similar. Although there is no evidence of a link between biomechanics and clinical outcomes, our results may suggest that theoretical advantages of short stems can be exploited without the fear of altering bone loading patterns.

Indexed as

BiomechanicsFinite elementsHipLoadingShort stemTHR

Identifiers

PMID33553545
PMCPMC7856394

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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.