Predicting Factors for the Outcome of Surgical Treatment for Patellar Instability
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Patellar Dislocation
- Sponsor
- Nik Žlak
- Enrollment
- 145
- Locations
- 1
- Primary Endpoint
- Change of subjective knee status evaluated with EQ-5D
- Status
- Enrolling By Invitation
- Last Updated
- 5 years ago
Overview
Brief Summary
The purpose of the study is:
- to analyze the success of operative stabilization of the patellar joint with the reconstruction of the medial patellofemoral ligament (MPFL) in terms of the subjective status of the knee, the general quality of life, and physical activity
- to study the influence of specific preoperative (demographic and anamnestic data of the patient, radiological parameters of the knee joint) and intra-operative factors (place of femoral insertion of MPFL graft, patella height, degree of damage to the cartilaginous surfaces of the knee joint) on the subjective outcome of surgical treatment.
Investigators
Nik Žlak
Principal investigator, Doctor of medicine, PhD student
University Medical Centre Ljubljana
Eligibility Criteria
Inclusion Criteria
- •patients over 18 years of age
- •surgical intervention with MPFL reconstruction
- •with or without tibial tuberosity transposition (TTT).
Exclusion Criteria
- •trochleoplasty,
- •corrective knee osteotomy
- •reparative cartilage treatment
- •reconstruction of other knee ligaments
- •meniscus repair
- •movement impairments
- •neuromuscular diseases
- •participation rejection
- •rejection to complete the control questionnaires
- •lack of understanding of the Slovenian language
Outcomes
Primary Outcomes
Change of subjective knee status evaluated with EQ-5D
Time Frame: 2-8 years
It is expected that the subjective status of the knee will significantly improve after surgical stabilisation of the patellar joint. The change in subjective knee status will be measured with EQ-5D (European quality of life in 5 dimensions; min 0, max 100). Higher scores on the questioner mean a better outcome.
Change of subjective knee status evaluated with KOOS
Time Frame: 2-8 years
It is expected that the subjective status of the knee will significantly improve after surgical stabilisation of the patellar joint. The change in subjective knee status will be measured with KOOS (Knee osteoarthritis outcome score; min 0, max 100). Higher scores on the questioner mean a better outcome.
Change of subjective knee status on Tegner activity scale
Time Frame: 2-8 years
It is expected that the subjective status of the knee will significantly improve after surgical stabilisation of the patellar joint. The change in subjective knee status will be measured with Tegner activity scale (min 0, max 10). Higher scores on the scale mean a better outcome.
Change of subjective knee status evaluated with Kujala score
Time Frame: 2-8 years
It is expected that the subjective status of the knee will significantly improve after surgical stabilisation of the patellar joint. The change in subjective knee status will be measured with Kujala questioner (min 0, max100). Higher score means a better outcome.
Change of subjective knee status on IKDC
Time Frame: 2-8 years
It is expected that the subjective status of the knee will significantly improve after surgical stabilisation of the patellar joint. The change in subjective knee status will be assessed with IKDC (International knee documentation committeemin; 0, max 100) questioner. Higher score on the questioner means a better outcome.
Secondary Outcomes
- Patellar position change(2-8 years)