Validation of the German Forgotten Joint Score (G-FJS) according to the COSMIN checklist: does a reduction in joint awareness indicate clinical improvement after arthroplasty of the knee?

Baumann, Florian; Ernstberger, Toni; Loibl, Markus; Zeman, Florian; Nerlich, Michael; Tibesku, Carsten O.

doi:10.1007/s00402-015-2372-x

Cited by 55 publications

(46 citation statements)

References 25 publications

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“…Several other studies have investigated test-retest reliability via calculation of the ICC, all finding high internal consistency. 17,1819,26 In the present study, good test-retest reliability was confirmed with an ICC of 0.90 [15]; this value was comparable to the German study's ICC of 0.80 [17], the Dutch study's ICC of 0.94 [18], and the Chinese study's ICC of 0.97 [19], and the Danish study's ICC of 0.91 [26].…”

Section: Discussionsupporting

confidence: 83%

“…Unlike the original FJS-12 study, in the present study, test-retest reliability was evaluated preoperatively, and excellent internal consistency was demonstrated via a Cronbach's α of 0.81. Likewise, two other validation studies, one Danish [26] and one German [17], both found a high level of internal consistency (Cronbach's α = 0.96 and Cronbach's α = 0.95, respectively). Several other studies have investigated test-retest reliability via calculation of the ICC, all finding high internal consistency.…”

Section: Discussionmentioning

confidence: 73%

“…Moreover, as the number of younger patients with increased expectations is growing, instruments with which to measure outcomes must adapt to better distinguish between good and excellent results. The original FJS-12 paper [13] as well as several other validations studies [17,18,27] found no relevant ceiling effects. In our study of 120 patients, acceptably low ceiling and floor effects were found.…”

Section: Discussionmentioning

confidence: 89%

“…Similar to the original FJS-12 [17], it was assumed that the WOMAC, which is widely used in Italy, would be a good tool with which to compare the FJS-12. However, unlike the high correlation between FJS-12 and WOMAC seen in previous studies previous studies [13,27], we found only a moderate correlation between the two functional scores.…”

Section: Discussionmentioning

confidence: 99%

“…The FJS-12 has shown optimal discriminatory capacity and a reduced ceiling effect compared to other scores [13]. As a result of its effectiveness, the FJS-12 has since been translated in numerous languages such as but not limited to French [16], German [17], Dutch [18], and Chinese [19].…”

Section: Assessment Instrumentsmentioning

confidence: 99%

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Translation, cross-cultural adaptation, and validation of the Italian language Forgotten Joint Score-12 (FJS-12) as an outcome measure for total knee arthroplasty in an Italian population

Sansone

Fennema²,

Applefield

et al. 2020

BMC Musculoskelet Disord

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Background: With ever-increasing numbers of patients undergoing elective total knee arthroplasty (TKA) and as TKA is performed in increasingly younger patients, patient demands and expectations have also increased. With improved patient outcomes, new PROMs with heightened discriminatory power in well-performing patients are needed. The present study aimed to translate and validate the Italian version of the Forgotten Joint Score (FJS-12) as a tool for evaluating pre-operative through longitudinal post-operative outcomes in an Italian population. Methods: In this prospective study, patients with unilateral osteoarthritis, undergoing TKA surgery between May 2015 and December 2017 were recruited to participate in the study. The FJS-12 and WOMAC were collected pre-operatively and at six and 12 months post-operatively. According to the COSMIN checklist, reliability, internal consistency, validity, responsiveness, effect size, and ceiling effects and floor effects were evaluated.Results: One hundred twenty patients completed the study, 66 of which participated in the evaluation of test-retest reliability. Good test-retest reliability was found (ICC = 0.90). The FJS-12 also showed excellent internal consistency (Cronbach α = 0.81). Construct validity with the WOMAC, as a measure of the Pearson correlation coefficient, was moderate (r = 0.45 pre-operatively; r = 0.46 at 6 months and r = 0.42 at 12 months post-operatively). From six to 12 months, the change was slightly greater for the WOMAC than for the FJS-12 patients (effect size d = 0.94; d = 0.75, respectively). At 12-months follow-up, the ceiling effects reflecting the maximum score were 12% for the FJS-12 and 6% for the WOMAC; however, scores within 10% of the maximum score were comprised 30% of the FJS-12 scores and 59% for the WOMAC.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Assessment Instrumentsmentioning

confidence: 99%

See 3 more Smart Citations

Translation, cross-cultural adaptation, and validation of the Italian language Forgotten Joint Score-12 (FJS-12) as an outcome measure for total knee arthroplasty in an Italian population

Sansone

Fennema²,

Applefield

et al. 2020

BMC Musculoskelet Disord

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Inferior patellar mobility before and after knee arthroplasty: A comparison with healthy knees

Lachowski,

Prill,

Salzmann

et al. 2024

Knee surg. sports traumatol. arthrosc.

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PurposeThe aim of this study was to evaluate patellar mobility in patients before and after knee arthroplasty (KA) and compare it with that of healthy subjects. It was hypothesised that patellar mobility is diminished in patients with osteoarthritis (OA) and remains unchanged after KA.MethodsA total of 101 patients (59 females and 42 males) with a mean age of 70.9 ± 9.9 years underwent KA and were compared with 25 healthy individuals (seven females and 18 males) with a mean age of 32.3 ± 9.3 years. Mediolateral patellar displacement was measured by applying a force of 10 N, and the medial and lateral patellar shifts were recorded separately using a validated novel patellostabilometer. Patients were examined preoperatively and at 3 months postoperatively, assessing the range of knee motion and the clinical and functional status based on the Oxford Knee Score (OKS), Kujala Score, subjective Knee Society Score (sKSS), Forgotten Joint Score (FJS) and Western Ontario and McMaster Universities Arthritis Index (WOMAC).ResultsTotal patellar displacement was 42.1 ± 6 mm for healthy subjects, 31 ± 6 mm before surgery and 32.8 ± 7.8 mm after surgery in osteoarthritic patients (p < 0.01). The mean lateral patellar shift differed significantly between healthy individuals (17.9 ± 4 mm) and osteoarthritic patients (15.1 ± 6 mm) (p < 0.01). The mean medial patellar mobility of healthy individuals (24.2 ± 7 mm) was significantly greater than that of osteoarthritic patients (15.8 ± 4.8 mm) (p < 0.01). All scores improved significantly postoperatively. No correlation was found between patellar mobility and OKS, Kujala Score, sKSS, FJS and WOMAC (r = −0.11). Improvement in patellar mobility also showed no correlation with clinical outcomes according to OKS, Kujala Score, sKSS, FJS and WOMAC (r = 0.08).ConclusionThis study has demonstrated reduced patellar mobility in patients with OA. While patellar mobility significantly improved after KA, it may not hold clinical significance (p = 0.04). No impact on clinical outcome can be expected when the presurgical patella mobility is preserved in KA.Level of EvidenceLevel IV.

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Joint awareness after ACL reconstruction: patient-reported outcomes measured with the Forgotten Joint Score-12

Behrend¹,

Zdravkovic²,

Giesinger

et al. 2016

Knee Surg Sports Traumatol Arthrosc

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Validation of the German Forgotten Joint Score (G-FJS) according to the COSMIN checklist: does a reduction in joint awareness indicate clinical improvement after arthroplasty of the knee?

Abstract: Validating cohort study, Level 1b.

Cited by 55 publications

References 25 publications

Translation, cross-cultural adaptation, and validation of the Italian language Forgotten Joint Score-12 (FJS-12) as an outcome measure for total knee arthroplasty in an Italian population

Translation, cross-cultural adaptation, and validation of the Italian language Forgotten Joint Score-12 (FJS-12) as an outcome measure for total knee arthroplasty in an Italian population

Inferior patellar mobility before and after knee arthroplasty: A comparison with healthy knees

Joint awareness after ACL reconstruction: patient-reported outcomes measured with the Forgotten Joint Score-12

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