Evidence map›Paper›PMID 25040948›Full record

Observational studyPain medicine (Malden, Mass.)2014

The design and methods of genetic studies on acute and chronic postoperative pain in patients after total knee replacement.

Inna Belfer, Carol M Greco, Anna Lokshin, Katie Vulakovich, Douglas Landsittel, Feng Dai, Lawrence Crossett, Jacques E Chelly

Registry-linked trialOpen access · bronzeAbstract readObservational Study
In one paragraph

Observational study in Pain medicine (Malden, Mass.), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01557751 (Preliminary Studies for Whole Genome Association Study), which is not on this map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.2field-weighted citation impact, top 20% of its field
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.

NCT01557751 nacompletednot on this map

Preliminary Studies for Whole Genome Association Study (WGAS) in Acute Perioperative Pain

TypeinterventionalSponsorUniversity of PittsburghRan2010 to 2012Enrolled156ConditionsOsteoarthritis, Postoperative PainArmsWhole blood for genotyping
3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
  2. The mechanisms and management of persistent postsurgical pain.Frontiers in pain research (Lausanne, Switzerland) · 2023
    Review
  3. Article
  4. Article
  5. Article
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

8 authors at 1 institution in 1 country.

Inna BelferDepartment of Anesthesiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Carol M Greco
Anna Lokshin
Katie Vulakovich
Douglas Landsittel
Feng Dai
Lawrence Crossett
Jacques E Chelly
University of Pittsburgh · US

Funding

Urine and Serum Biomarkers for Screening and Diagnosis of Ovarian CancerR01CA108990 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LOKSHIN, ANNA E. · 2005 to 2014
$5.3M
Validation of pancreatic cancer biomarkers in large prospective cohortsR01CA196286 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LOKSHIN, ANNA E. · 2015 to 2017
$1.4M
Identification of Early Markers for Ovarian CancerR01CA098642 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LOKSHIN, ANNA E. · 2003 to 2006
$1.3M
CIT NIH HHS 1406-0408-CT-20481NCI NIH HHS R01 CA098642NCI NIH HHS R01 CA108990NCI NIH HHS R01 CA196286
6 · The paper itself

Abstract

objectiveTotal knee replacement (TKR) is the treatment option of choice for the millions of individuals whose osteoarthritis pain can no longer be managed through non-invasive methods. Over 500,000 TKRs are performed annually in the United States. Although most patients report improvement in pain and functioning following TKR, up to 30% report persistent pain that interferes with daily function. However, the reasons for poor outcomes are not clear. To best determine which patients are at risk for pain post TKR, a detailed and comprehensive approach is needed. In this article, we present the methodology of a study designed to identify a set of genetic, proteomic, clinical, demographic, psychosocial, and psychophysical risk factors for severe acute and chronic pain post TKR.

designProspective longitudinal observational study.

settingUniversity Hospital System. SUBJECTS: Patients scheduled for unilateral TKR with a target number of 150.

methodsPrior to surgery, we collect demographic, psychosocial, and pain data. Biological data, including blood samples for genetic analyses, and serum, urine, and joint fluid for cytokine assessment are collected intraoperatively. Pain assessments as well as medication use are collected during each of the three days postsurgery. Additionally, pain and psychosocial information is collected 6 and 12 months following surgery.

conclusionsThis study, for the first time, captures the information on both genetic and "environmental" risk factors for acute and chronic pain post-TKR and has the potential to lead to the next step-multicenter large-scale studies on predictors and biomarkers of poor TKR outcomes as well as on tailored interventions and personalized medicine approaches for those at risk.

Indexed as

Arthroplasty, Replacement, KneeAdultAnalgesicsBody FluidsCytokinesFeasibility StudiesFemaleGene-Environment InteractionGenetic MarkersGenetic Predisposition to DiseaseGenotypeHot TemperatureHumansHyperalgesiaMaleNerve BlockAnalgesicsCytokinesGenetic MarkersCytokinesGeneticPainPostsurgicalPsychosocialTotal Knee Replacement

Identifiers

PMID25040948
PMCPMC4556363
OpenAlexW2151166763

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.