Patellofemoral Pain After Unicondylar Knee Arthroplasty
Unicondylar knee arthroplasty (UKA) is a proven procedure in patients suffering from unicompartmental knee osteoarthritis. Two different types of UKA design are available - both with different pros and cons. The so-called 'mobile-bearing UKA' requires the removal of an additional amount of cartilage and bone close to the implantat. It is unclear whether this is of clinical relevance.
We speculate that the amount of cartilage/bone removal is related to the clinical outcome of the UKA-surgery.
In patients receiving a mobile-bearing UKA that amount of cartilage/bone removal is measured during the surgery. The clinical success of the procedure will be determined with certain knee questionnaires (Kujala & KOOS)preoperatively, 3 months postoperatively, 6 months postoperatively and 1 year postoperatively. Additionally, the so-called bone-remodelling around that area of resected cartilage and bone will be measured (SPECT-CT) postoperatively.
The three variables (removed amount of cartilage/bone; clinical success with regard to the questionnaires; bone remodelling) are then analyzed with statistical methods to find out potential assoziations among them.
|Mobile-bearing Unicondylar Knee Arthroplasty||Procedure: mobile-bearing unicondylar knee arthroplasty|
|Study Design:||Observational Model: Case-Only
Time Perspective: Prospective
- Size of anterior femoral notch [ Time Frame: day 0 ]Required cartilage / bone removal adjacent to the femoral implant
- Kujala Score changes [ Time Frame: -1 days, 3 months, 6 months, 1 year ]
- KOOS questionnaire changes [ Time Frame: -1 days, 3 months, 6 months, 1 year ]
- Radionuclide tracer uptake at the surgically created notch [ Time Frame: 6 months ]
|Study Start Date:||September 2011|
|Primary Completion Date:||December 2014 (Final data collection date for primary outcome measure)|
Patients with unicondylar osteoarthritis of the knee
Procedure: mobile-bearing unicondylar knee arthroplasty
mobile-bearing unicondylar knee arthroplasty
Please refer to this study by its ClinicalTrials.gov identifier: NCT01407042
|Innsbruck Medical University|
|Innsbruck, Austria, 6020|