Trials / Completed
CompletedNCT05871112
Femoral Rotation and Patellar Positioning After TKA
Establishing Femoral Component Rotation Using a Dynamic Tensioner Does Not Improve Patellar Position After Total Knee Replacement With Use of Anatomic Implants - Matched-cohort Study
- Status
- Completed
- Phase
- —
- Study type
- Observational
- Enrollment
- 125 (actual)
- Sponsor
- Medical University of Warsaw · Academic / Other
- Sex
- All
- Age
- 60 Years – 99 Years
- Healthy volunteers
- Not accepted
Summary
Analysis of patellar positioning in the trochlear groove after TKA with and without the use of dynamic tensioner.
Detailed description
It appears that by precisely adjusting femoral component rotation and its relation to soft tissues in the area we can achieve better function of the patellofemoral joint and thus reduce the occurrence of anterior knee pain. Achieving proper femoral component rotation is challenging, as the bony landmarks are difficult to identify. This goal may be accomplished by using a dynamic tensioner - a device that intraoperatively measures joint gap stiffness in extension and 90 degrees flexion. This is especially important in knees with high grade arthritis and limb malalignment, where ligaments' and tendons' efficiency is affected.The aim of this study was to analyze patella positioning in the trochlear groove on CT scans of patients undergoing TKR with use of a dynamic tensioner and compare it to the ones undergoing standard measured-resection technique. Secondary outcome was to assess the frequency of anterior knee pain, range of motion and patient-reported outcome 3 and 12 months after the surgery.
Conditions
- Knee Osteoarthritis
- Joint Pain
- Joint Instability
- Patella Disorder
- Knee Pain Chronic
- Prosthetic Complication
Interventions
| Type | Name | Description |
|---|---|---|
| OTHER | Use of dynamic tensioner | Assessment of femoral component rotation with a use of a dynamic tensioner in extension and 90 degrees of flexion. The tensioner was put between tibial plane cut and posterior condyles of the femur and tensioned to the same thickness of insert as in the full extension |
Timeline
- Start date
- 2021-01-04
- Primary completion
- 2021-08-29
- Completion
- 2021-08-29
- First posted
- 2023-05-23
- Last updated
- 2023-05-23
Locations
1 site across 1 country: Poland
Source: ClinicalTrials.gov record NCT05871112. Inclusion in this directory is not an endorsement.