The original English version of Kujala Questionnaire will be translated and culturally adapted as per previous recommendation. In patients with anterior knee pain or patella femoral knee pain, Kujala Questionnaire-Urdu will be distributed among hundred participants choose a convenience sampling technique based on pre-defined inclusion and exclusion criteria. To test reliability of inter/intra observer of ultimate final Urdu Version of Kujala, 36-Item Short Form Health Survey questionnaire, Lysholm Knee Scoring Scale and 2000 International Knee Documentation Committee Subjective Knee Evaluation Form will be filled from patients on the equivalent day, by 2 different bystanders, and for inter observer valuation, with an interval of 30 minutes between the first and second application. Third assessment will be carried out after 7 days of the Observer -1 (re-testing), for intra-observer assessment. Data will be entered and analyzed Cronbach alpha value. Test-retest reliability will be assessed using an intraclass correlation coefficient. Urdu Version of Kujala was evaluated for content validity, construct validity, criterion validity and responsiveness.
The aim of this research is to interpret and make Kujala Questionnaire adaptable culturally into Urdu to investigate its validity and reliability in Pakistani population among anterior knee pain or patello femoral knee pain. Also check its correlation with 36-Item Short Form Health Survey questionnaire, Lysholm Knee Scoring Scale and 2000 International Knee Documentation Committee Subjective Knee Evaluation Form.