Evidence map›Paper›PMID 33085181›Full record

ArticleMusculoskeletal care2021

High levels of preoperative pain and fatigue are red flags for moderate-severe pain 12 months after total knee arthroplasty-A longitudinal cohort study.

Mestawet Getachew, Anners Lerdal, Milada Cvancarova Småstuen, Caryl L Gay, Arild Aamodt, Million Tesfaye, Maren Falch Lindberg

Open access · hybridAbstract read
In one paragraph

Article in Musculoskeletal care, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 14% 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.

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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. A Systematic Review of Pain Drawings for Perioperative Patient Management.Plastic and reconstructive surgery. Global open · 2026
    Article
  3. Review
  4. Article
  5. Observational
  6. Article
  7. Review
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 at 5 institutions in 5 countries.

Mestawet GetachewDepartment of Clinical Pharmacy, School of Pharmacy, Institute of Health, Jimma University, Jimma, Ethiopia.ORCID 0000-0002-7029-8813
Anners LerdalDepartment of Interdisciplinary Health Sciences, Faculty of Medicine, Institute of Health and Society, University of Oslo, Oslo, Norway.
Milada Cvancarova SmåstuenDepartment of Research and Administration, Lovisenberg Diaconal Hospital, Oslo, Norway.
Caryl L GayDepartment of Research and Administration, Lovisenberg Diaconal Hospital, Oslo, Norway.
Arild AamodtDepartment of Orthopaedic Surgery, Lovisenberg Diaconal Hospital, Oslo, Norway.
Million TesfayeDepartment of Anesthesiology, Faculty of Medicine, Institute of Health, Jimma University, Jimma, Ethiopia.
Maren Falch LindbergDepartment of Nursing Science, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway.
Jimma University · ETUniversity of Oslo · NOLovisenberg Diakonale Høgskole · NOOsloMet – Oslo Metropolitan University · NOUniversity of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundModerate/severe pain after total knee arthroplasty (TKA) is a poor surgical outcome. Many studies have identified preoperative risk factors of pain after TKA, but studies of the joint contributions of co-occurring symptoms are lacking.

methodsPatients undergoing primary TKA (n = 202) were enrolled in a longitudinal cohort study. Preoperatively, patients completed questionnaires measuring demographics and symptoms (pain, fatigue, sleep problems and depression). Pain was re-assessed 12 months after TKA. Logistic regression analysis was used to compute the probabilities of moderate-severe pain at 12 months based on preoperative symptom levels, and results were combined into a risk matrix.

resultsMore than one-third (40%) of patients (n = 187) reported moderate-severe pain after TKA. Among preoperative risk factors included in the logistic regression analyses were age, sex, pain, fatigue, sleep problems and depression. Adjusting for possible confounders, fatigue (p = 0.02) and pain (p = 0.01) were significant risk factors for moderate-severe pain at 12-months follow-up and were retained in the final risk matrix. The co-occurrence of high-preoperative fatigue and pain scores resulted in 57% estimated probability of moderate-severe pain at 12 months. Similarly, the co-occurrence of low-preoperative fatigue and pain scores resulted in 14% estimated probability of moderate-severe pain 12 months after TKA.

conclusionThe combination of high fatigue and pain scores prior to surgery was a key risk factor for moderate-severe pain 12 months after TKA. Mapping of these factors could be used preoperatively to identify patients who are at risk to experience a poor outcome of TKA.

Indexed as

Arthroplasty, Replacement, KneeOsteoarthritis, KneeCohort StudiesFatigueHumansLongitudinal StudiesPainTreatment Outcomemoderate-severe painpreoperative fatiguepreoperative painrisk factorstotal knee arthroplasty

Identifiers

PMID33085181
PMCPMC8247059
OpenAlexW3093785392

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.