Evidence map›Paper›PMID 27444848›Full record

Trial reportThe Journal of arthroplasty2017

Predictors of Patient-Reported Pain and Functional Outcomes Over 10 Years After Primary Total Knee Arthroplasty: A Prospective Cohort Study.

Yanfang Jiang, Maria T Sanchez-Santos, Andrew D Judge, David W Murray, Nigel K Arden

Open access · hybridAbstract readMulticenter StudyRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in The Journal of arthroplasty, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 1 pooled it
11.9field-weighted citation impact, top 1% 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

52 citing papers in PubMed, 1 synthesis or guideline pooled it, 124 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Trial
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. [20% dissatisfied patients-Is this still true?]Orthopadie (Heidelberg, Germany) · 2025
    Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Observational
  20. 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

5 authors at 4 institutions in 2 countries.

Yanfang JiangInstitute of Sports Medicine, Peking University 3rd Hospital, Beijing, China.
Maria T Sanchez-SantosArthritis Research UK Sports, Exercise and Osteoarthritis Centre of Excellence, University of Oxford, UK; NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
Andrew D JudgeNIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
David W MurrayNIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
Nigel K ArdenArthritis Research UK Sports, Exercise and Osteoarthritis Centre of Excellence, University of Oxford, UK; NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
NIHR Oxford Musculoskeletal Biomedical Research Centre · GBPeking University · CNUniversity of Southampton · GBVersus Arthritis · GB

Funding

Arthritis Research UKDepartment of Health 95/10/01Department of Health HTA/95/10/501Department of Health RP-PG-0407-10064
6 · The paper itself

Abstract

backgroundThis study aimed at identifying preoperative predictors of patient-reported outcomes after total knee arthroplasty (TKA) and at investigating their association with the outcomes over time.

methodsWe used data from 2080 patients from the Knee Arthroplasty Trial who received primary TKA in the United Kingdom between July 1999 and January 2003. The primary outcome measure was the Oxford knee score (OKS) collected annually over 10 years after TKA. Preoperative predictors included a range of patient characteristics and clinical conditions. Mixed-effects linear regression model analysis of repeated measurements was used to identify predictors of overall OKS, and pain and function subscale scores over 10 years, separately.

resultsWorse preoperative OKS, worse mental well-being, body mass index greater than 35 kg/m

conclusionThe same predictors were identified for pain and functional outcomes over both short-to-medium term and long term after TKA. Within the factors identified, functional and shorter-term outcomes were more predictable than pain and longer-term outcomes, respectively. Regardless of their preoperative characteristics, on average, patients achieved substantial improvement in pain over time, although improvement for function was less prominent.

Indexed as

Self ReportAgedAged, 80 and overArthroplasty, Replacement, KneeBody Mass IndexComorbidityFemaleHumansLinear ModelsMaleMiddle AgedOrthopedic ProceduresPainPain MeasurementPreoperative PeriodProspective Studiesepidemiologyknee arthroplastyosteoarthritisOxford knee scorepatient-reported outcome

Identifiers

PMID27444848
PMCPMC5178876
OpenAlexW2472833215

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.