2016
DOI: 10.1016/j.knee.2015.10.003
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The Norwich Patellar Instability Score: Validity, internal consistency and responsiveness for people conservatively-managed following first-time patellar dislocation

Abstract: Purpose: This paper assessed the validity, internal consistency, responsiveness and floor-ceiling effects of the Norwich Patellar Instability (NPI) Score for a cohort of conservatively managed people following first-time patellar dislocation (FTPD).Methods: Fifty patients were recruited, providing 130 completed datasets over 12 months. The NPI Score, Lysholm Knee Score, Tegner Level of Activity Score and isometric knee extension strength were assessed at baseline, six weeks, six and 12 months post-injury. Con… Show more

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Cited by 13 publications
(14 citation statements)
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“…There are several more knee specific scores, but few are validated for children. 159,161,163 Preferable activity measures should be included in the evaluation; however, no specific activity score has been developed for children. Thus, often used in the age-mixed population is the Tegner activity score.…”
Section: Pro Measurementmentioning
confidence: 99%
“…There are several more knee specific scores, but few are validated for children. 159,161,163 Preferable activity measures should be included in the evaluation; however, no specific activity score has been developed for children. Thus, often used in the age-mixed population is the Tegner activity score.…”
Section: Pro Measurementmentioning
confidence: 99%
“…Despite the stated purpose, there is no exploration of the health state preference value (utility) of this type of outcome measure. In the setting of a complex patient population, the authors have not explained their rationale for using a generic QoL tool such as the EQ-5D-3L when there are disease-speciic patient-reported outcome measures available [14,18]. The EQ-5D-3L has previously demonstrated low sensitivity to small and medium health changes and low responsiveness to detect clinical change in patients with limb reconstruction [6,17].…”
mentioning
confidence: 99%
“…The Norwich Patellar Instability Score is a symptom score developed in 2014 [31]. While its use in the literature is limited thus far, its responsiveness is to comparable to the Lysholm score, and it has the advantage of being specifically validated in first‐time dislocators [29] and without ceiling effects [30].…”
Section: Discussionmentioning
confidence: 99%