Validation of Kujala German

Cross-cultural Adaptation and Validation of the German Version of the Kujala Score in Patients With Patellofemoral Instability - a Prospective Multi-centric Study

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)

Study Overview

• Status: Unknown
• Conditions: Validation of Kujala Score German Version in Patients With Patellofemoral Instability and Scheduled MPFL-reconstruction
• Intervention / Treatment: Procedure: MPFL- Reconstruction

• Study Type: Observational
• Enrollment (Anticipated): 45

Contacts and Locations

Study Locations

• Austria
  • Tyrol
    • Innsbruck, Tyrol, Austria, 6020
      • Recruiting
      • Dept. Orthop. Surgery, Medical Univ. Innsbruck
      • Principal Investigator: Michael C Liebensteiner, MD, PhD
      • Contact: Martin Krismer, Prof.; Phone Number: +43 512 504 22691; Email: martin.krismer@uki.at

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 6 years to 66 years (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Patients with patellofemoral instability & scheduled MPFL-reconstruction

Description

Inclusion Criteria:

• german speaking
• MPFL-reconstruction planed

Exclusion Criteria:

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Only
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Patellofemoral Instability; Patients with diagnosis of patellofemoral instability receiving MPFL-reconstruction as part of the clinical routine	Procedure: MPFL- Reconstruction

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
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

Collaborators and Investigators

• Sponsor: Medical University Innsbruck

Study record dates

Study Major Dates

• Study Start: November 1, 2011
• Primary Completion (Anticipated): January 1, 2017

Study Registration Dates

• First Submitted: December 19, 2011
• First Submitted That Met QC Criteria: December 19, 2011
• First Posted (Estimate): December 20, 2011

Study Record Updates

• Last Update Posted (Estimate): July 19, 2016
• Last Update Submitted That Met QC Criteria: July 16, 2016
• Last Verified: July 1, 2016

More Information

Terms related to this study

• Other Study ID Numbers: Kuj-Germ-1