Evidence map›Paper›PMID 42867697›Full record

ArticleArchives of orthopaedic and trauma surgery2026

Preoperative pain and achievement of the minimal clinically important difference for physical function one year after total hip arthroplasty: a prospective cohort study.

Rubén Gajardo-Burgos, Ricardo Arteaga San Martín, Jorge Fuentes, Manuel Monrroy Uarac, Cristhian Saavedra-Santiesteban, Claudio Bascour-Sandoval, Eduardo Sáez de Villarreal

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Article in Archives of orthopaedic and trauma surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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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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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.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Rubén Gajardo-BurgosInstituto de Ciencias del Movimiento y la Ocupación Humana, Universidad Austral de Chile, Valdivia, Chile. ruben.gajardo@uach.cl.ORCID http://orcid.org/0000-0002-4515-2492
Ricardo Arteaga San MartínInstituto de Ciencias del Movimiento y la Ocupación Humana, Universidad Austral de Chile, Valdivia, Chile.
Jorge FuentesClinical Research Lab, Department of Physical Therapy, Catholic University of the Maule, Talca, Chile.ORCID https://orcid.org/0000-0003-0626-3656
Manuel Monrroy UaracInstituto de Ciencias del Movimiento y la Ocupación Humana, Universidad Austral de Chile, Valdivia, Chile.ORCID http://orcid.org/0000-0002-8567-827X
Cristhian Saavedra-SantiestebanInstituto de Ciencias del Movimiento y la Ocupación Humana, Universidad Austral de Chile, Valdivia, Chile.
Claudio Bascour-SandovalDepartamento de Ciencias de la Rehabilitación, Universidad de La Frontera, Temuco, Chile.ORCID https://orcid.org/0000-0002-6250-8518
Eduardo Sáez de VillarrealFaculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain. esaesae@upo.es.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo examine the association between preoperative social, clinical, and biological variables and the achievement of the minimal clinically important difference (MCID) on the WOMAC-function subscale one year post total hip arthroplasty (THA).

methodsIn this prospective cohort study, 85 patients (aged ≥ 65) completed baseline preoperative assessment, and 53 completed the 12-month follow-up (32 lost to follow-up; 66.0% achieved MCID). The outcome was achieving WOMAC-function MCID (≥ 26.54 points). Multivariable logistic regression adjusted for baseline pain, age, sex, and BMI were performed. ROC curves evaluated discriminative capacity.

resultsAn exploratory ROC analysis identified a baseline pain threshold of 6.5 on the Numerical Rating Scale yielded an AUC of 0.740 (70% sensitivity, 77% specificity).

conclusionsPreoperative pain intensity independently associated with clinically meaningful functional improvement post-THA. An exploratory pain threshold of 6.5 on the NRS may provide an exploratory benchmark for future risk stratification.

Indexed as

Arthroplasty, Replacement, HipMinimal Clinically Important DifferenceAgedFemaleHumansMalePain MeasurementPreoperative PeriodProspective StudiesRecovery of FunctionFunctional recoveryMinimal clinically important differencePreoperative painTotal hip arthroplasty

Identifiers

PMID42867697
PMCPMC13661752

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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.