Evidence map›Paper›PMID 30259126›Full record

ArticleArchives of orthopaedic and trauma surgery2018

Patient age of less than 55 years is not an independent predictor of functional improvement or satisfaction after total knee arthroplasty.

N D Clement, L C Walker, M Bardgett, D Weir, J Holland, C Gerrand, D J Deehan

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Article in Archives of orthopaedic and trauma surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

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

16 citing papers in PubMed.

  1. Trial
  2. Trial
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  4. Evaluating Patient Satisfaction Outcome After Total Knee Arthroplasty Done at Our Hospital's Joint Replacement Registry, Egypt.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
    Observational
  5. Article
  6. Article
  7. Article
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  9. Preoperative stiffness is the most important predictor of postoperative patient's satisfaction after total knee arthroplasty.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2023
    Article
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  11. Article
  12. Article
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  15. Review
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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.

N D ClementDepartment of Orthopaedics, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DN, UK.
L C WalkerDepartment of Orthopaedics, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DN, UK. Lcwalker86@gmail.com.ORCID http://orcid.org/0000-0003-0354-2342
M BardgettDepartment of Orthopaedics, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DN, UK.
D WeirDepartment of Orthopaedics, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DN, UK.
J HollandDepartment of Orthopaedics, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DN, UK.
C GerrandDepartment of Orthopaedics, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DN, UK.
D J DeehanDepartment of Orthopaedics, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DN, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionManagement of the young patient with end-stage osteoarthritis of the knee is difficult, with surgical options of osteotomy, partial or total knee arthroplasty (TKA). The primary aim of this study was to assess whether age of less than 55 years was an independent predictor of functional outcome and satisfaction after total knee arthroplasty (TKA). The secondary aims were to identify pre-operative differences in patient demographics, comorbidity and function between patients less than 55 years old compared to those 55 years old and over. MATERIALS AND

methodsA retrospective cohort consisting of 2589 patients undergoing a primary TKA was identified from an established arthroplasty database. Patient demographics, comorbidity, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Short Form (SF) 12 scores were collected pre-operatively and 1 year post-operatively. In addition, patient satisfaction was assessed at 1 year. Regression analysis was used to identify independent pre-operative predictors of change in the WOMAC and SF-12 scores, and patient satisfaction.

resultsPatients less than 55 years old were significantly less likely to be satisfied with the overall outcome of their TKA (OR 0.4, p = 0.001). After adjusting for confounding variables age group was not an independent predictor of overall satisfaction with overall outcome (OR 0.71, p = 0.16). Independent predictors of an increased risk of dissatisfaction with the overall outcome at 1 year were depression (OR 0.58, p = 0.008) and worse pre-operative SF-12 MCS (p = 0.04).

conclusionAge of less than 55 years is not an independent predictor of functional outcome or rate of patient satisfaction after TKA. However, depression and poor mental health are significantly more prevalent in patients less than 55 years old and were independently associated with a lower satisfaction rate.

Indexed as

Age FactorsAgedArthroplasty, Replacement, KneeComorbidityDatabases, FactualFemaleHumansKnee JointMaleMiddle AgedOsteoarthritis, KneePatient SatisfactionRetrospective StudiesTreatment OutcomeAgeLess than 55 yearsOutcomeSatisfactionTotal knee arthroplastyWOMAC

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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.