Validity and Reliability of the Indonesian Version of the Kujala Score for Patients With Patellofemoral Pain Syndrome

Edi Mustamsir, Krisna Yuarno Phatama, Arimurti Pratianto, Ananto Satya Pradana, William Putera Sukmajaya, Ray Asaf Hexa Pandiangan, Muhammad Abduh, Mohamad Hidayat, Edi Mustamsir, Krisna Yuarno Phatama, Arimurti Pratianto, Ananto Satya Pradana, William Putera Sukmajaya, Ray Asaf Hexa Pandiangan, Muhammad Abduh, Mohamad Hidayat

Abstract

Background: The Kujala score is a useful diagnostic tool to evaluate patellofemoral pain syndrome (PFPS). However, no validated Indonesian version of the Kujala score has been available.

Purpose: To develop and validate an Indonesian version of the Kujala score.

Study design: Cohort study (diagnosis); Level of evidence, 3.

Methods: This was a cross-sectional study to develop an Indonesian version of the Kujala score by using a forward-backward translation protocol. The resulting questionnaire was given to 51 patients diagnosed with PFPS. The validity of the questionnaire was evaluated by correlating the final score with the Indonesian version of the 36-Item Short Form Health Survey (SF-36). Reliability was measured by evaluating the internal consistency (Cronbach alpha) and test-retest reliability (intraclass correlation coefficient [ICC]).

Results: The Indonesian version of the Kujala score had a positive correlation with the physical components of the SF-36. The internal consistency was fairly high (α = .74), and the test-retest reliability was excellent (ICC, 0.996).

Conclusion: The Indonesian version of the Kujala score was proven to be a valid and reliable tool to diagnose PFPS. Future epidemiological studies could implement this score to find the prevalence of PFPS in Indonesia. Further, ensuing studies could explore the application of this scoring system in posttreatment and postoperative settings.

Keywords: Indonesian; Kujala score; anterior knee pain; patellofemoral pain syndrome.

Conflict of interest statement

The authors declared that there are no conflicts of interest in the authorship and publication of this contribution. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto.

© The Author(s) 2020.

Figures

Figure 1.
Figure 1.
Flowchart of the study process.

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Source: PubMed

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