Evidence map›Paper›PMID 26937689›Full record

ArticleActa orthopaedica2016

Good validity and reliability of the forgotten joint score in evaluating the outcome of total knee arthroplasty.

Morten G Thomsen, Roshan Latifi, Thomas Kallemose, Kristoffer W Barfod, Henrik Husted, Anders Troelsen

3 registry-linked trialsOpen access · goldAbstract readComment
PubMed Full text at PMC Publisher
In one paragraph

Article in Acta orthopaedica, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 75 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 2 pooled it
10.0field-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.

NCT03008967 completednot on this map

A Prospective Cohort Study of Patients Undergoing Total Knee and Hip Arthroplasty at a Regional Hospital in Denmark

Typeobservational_patient_registrySponsorBornholms RegionskommuneRan2016 to 2018Enrolled110ConditionsArthroplasty, Replacement, Knee, Arthroplasty, Replacement, HipArmsArthroplasty and postoperative rehabilitation.
NCT06627673 narecruitingnot on this mapstarted 2026, after this paper: background citation

MultiCenter Prospective Parallel Registry Controlled Investigational Device Exemption Clinical Study to Determine Non-Inferiority of the PEEK-OPTIMA™ Femoral Component Versus a CoCr Alloy Femoral Component of Similar Design for TKA

TypeinterventionalSponsorMaxx Orthopedics IncRan2026 to 2029Enrolled200ConditionsKnee OsteoarthritisArmsTotal Knee Arthroplasty
NCT06627699 recruitingnot on this mapstarted 2025, after this paper: background citation

Prospective, In-Vivo, Post-Market Safety and Efficacy Surveillance Registry of the MAXX Orthopedics, Freedom Total Knee® System

Typeobservational_patient_registrySponsorMaxx Orthopedics IncRan2025 to 2029Enrolled300ConditionsKnee Osteoarthristis, Total Knee AnthroplastyArmsTotal Knee Arthroplasty
3 · Its place in the literature

Who cites it

75 citing papers in PubMed, 2 syntheses or guidelines pooled it, 133 citations in OpenAlex.

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  4. PCL retained is safe in medial pivot TKA-a prospective randomized trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
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15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Morten G Thomsena Department of Orthopedic Surgery , Copenhagen University Hospital , Hvidovre , Copenhagen , Denmark. .
Roshan Latifia Department of Orthopedic Surgery , Copenhagen University Hospital , Hvidovre , Copenhagen , Denmark. .
Thomas Kallemosea Department of Orthopedic Surgery , Copenhagen University Hospital , Hvidovre , Copenhagen , Denmark. .
Kristoffer W Barfoda Department of Orthopedic Surgery , Copenhagen University Hospital , Hvidovre , Copenhagen , Denmark. .
Henrik Husteda Department of Orthopedic Surgery , Copenhagen University Hospital , Hvidovre , Copenhagen , Denmark. .
Anders Troelsena Department of Orthopedic Surgery , Copenhagen University Hospital , Hvidovre , Copenhagen , Denmark. .
Copenhagen University Hospital · DKHvidovre Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and purpose - When evaluating the outcome after total knee arthroplasty (TKA), increasing emphasis has been put on patient satisfaction and ability to perform activities of daily living. To address this, the forgotten joint score (FJS) for assessment of knee awareness has been developed. We investigated the validity and reliability of the FJS. Patients and methods - A Danish version of the FJS questionnaire was created according to internationally accepted standards. 360 participants who underwent primary TKA were invited to participate in the study. Of these, 315 were included in a validity study and 150 in a reliability study. Correlation between the Oxford knee score (OKS) and the FJS was examined and test-retest evaluation was performed. A ceiling effect was defined as participants reaching a score within 15% of the maximum achievable score. Results - The validity study revealed a strong correlation between the FJS and the OKS (intraclass correlation coefficient (ICC) = 0.81, 95% CI: 0.77-0.85; p < 0.001). The test-retest evaluation showed almost perfect reliability for the FJS total score (ICC = 0.91, 95% CI: 0.88-0.94) and substantial reliability or better for individual items of the FJS (ICC? 0.79). We found a high level of internal consistency (Cronbach's? = 0.96). The ceiling effect for the FJS was 16%, as compared to 37% for the OKS. Interpretation - The FJS showed good construct validity and test-retest reliability. It had a lower ceiling effect than the OKS. The FJS appears to be a promising tool for evaluation of small differences in knee performance in groups of patients with good clinical results after TKA.

Indexed as

Arthroplasty, Replacement, KneeActivities of Daily LivingHumansKnee JointOsteoarthritis, KneeReproducibility of ResultsSurveys and Questionnaires

Identifiers

PMID26937689
PMCPMC4900097
OpenAlexW2289005875

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.