Validation of Kujala German

• Conditions: Validation of Kujala Score German Version in Patients With Patellofemoral Instability and Scheduled MPFL-reconstruction
• Interventions: Procedure: MPFL- Reconstruction

• Registration Number: NCT01495507
• Lead Sponsor: Medical University Innsbruck

Brief Summary

The field of patellofemoral disorders and accordant therapeutical interventions is a high turnover research field. It is important to verify the clinical outcome with appropriate measuring tools. There is evidence that the Kujala score is a reliable and widely used measuring instrument of patellofemoral disorders. Indeed, the Kujala score was already used in many studies investigating patellofemoral disorders - also in german speaking patient groups. Unfortunately, we are not aware of a validated german version of the Kujala score. Other relevant knee outcome scores were already successfully translated into german language and validated by previous investigators.

So, it is the aim of our study to cross-culturally adapt and then to validate the Kujala score for use in German-speaking individuals with patellofemoral instability. It is hypothesized that the german version of the Kujala score shows:

* High divergent construct validity as determined by significant differences between patients and controls (hypothesis 1)

* High convergent construct validity as determined by significant correlations with other relevant scoring systems (hypothesis 2)

* High reliability (hypothesis 3)

* High responsiveness (hypothesis 4)

Detailed Description

Not available

Study Timeline

• Study Start: 2011-11
• Study First Submitted: 2011-12-19
• Study First Submitted QC: 2011-12-19
• Study First Posted: 2011-12-20
• Status Verified: 2016-07
• Last Update Submitted: 2016-07-16
• Last Update Posted: 2016-07-19
• Primary Completion: 2017-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 45

Inclusion Criteria

• german speaking
• MPFL-reconstruction planed

Exclusion Criteria

Not provided

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Patellofemoral Instability	MPFL- Reconstruction	Patients with diagnosis of patellofemoral instability receiving MPFL-reconstruction as part of the clinical routine

Primary Outcome Measures

Name	Time	Method
Kujala Score	1 year
KOOS (Knee Injury and Osteoarthritis Outcome Score)	1 year
Marx Activity Scale	1 year
SF-12 (Short - Form 12)	1 year
VAS pain	1 year
Lysholm Score	1 year

Trial Locations

Locations (1)

Dept. Orthop. Surgery, Medical Univ. Innsbruck; 🇦🇹 Innsbruck, Tyrol, Austria