Analysis of the lower limb function and the quadriceps anatomy in patients after non-traumatic patella dislocation: An in-vivo study about the relationship between patello-femoral instability and resultant joint kinematiks

Recruiting

• Conditions: S83.0; M22.0; M22.1; M22.2; Dislocation of patella; Recurrent dislocation of patella; Recurrent subluxation of patella; Patellofemoral disorders

• Registration Number: DRKS00000332
• Lead Sponsor: Julius Wolff Institut, Charité - Universitätsmedizin Berlin Centrum für Sportwissenschaft und Sportmedizin Berlin

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2010-02-18
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

Group A:
-The patients have proper health insurance
- Trochlea dysplasia Grade A-C
- First dislocation at least 6 months before analysis
- Last dislocation at least 4 weeks before analysis

Group B:
-The patients have proper health insurance
- Trochlea dysplasia Grade A-C
- MPFL reconstruction at least 12 months before analysis

Exclusion Criteria

Group A:
- Surgical treatment of the patello-femoral joint
- Additional pathologies of the knee, and the active and passive stabilizators

Group B:
- No other previous surgical intervention for the stabilization of the patello-femoral joint

Study & Design

• Study Type: observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Group A:The kinematics of the knee, hip, and ankle joint, as well as the resultant ground reaction foce will be measured pre-operatively, at least 4 weeks after the last dislocation, with the help of gait analysis and VICON software.<br>Group B: The kinematics of the knee, hip, and ankle joint, as well as the resultant ground reaction foce will be measured at least 12 months post-operatively, with the help of gait analysis and VICON software

Secondary Outcome Measures

Name	Time	Method
Group A: The ratio of the cross-sectional area of the vastus lateralis muscle to the vastus medialis, will be measured pre-operatively, at least 4 weeks after the last dislocation, with the help of MRI imaging of the quadriceps.<br><br>Group B: The ratio of the cross-sectional area of the vastus lateralis muscle to the vastus medialis, will be measured at least 12 months post-operatively, with the help of MRI imaging of the quadriceps.