An observational study in Knee Osteoarthritis, Joint Pain and Joint Instability, sponsored by Medical University of Warsaw. Completed at 1 site in Poland. Open to participants aged 60 Years to 99 Years. Per ClinicalTrials.gov, last updated 2023-05-23.
Sponsored by Medical University of Warsaw · Observational
Analysis of patellar positioning in the trochlear groove after TKA with and without the use of dynamic tensioner.
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.
273 studies on the registry are indexed under Arthralgia; 41 are open to participants now.
This study's enrollment of 125 is close to the median of 120 across 44 observational studies indexed under Arthralgia.
Browse Arthralgia studies →Medical University of Warsaw is the lead sponsor of 316 studies on the registry; 87 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Consecutive series of patients in age over 60 with 3rd/4th grade of Kellgren - Lawrence osteoarthritis scale.
Exclusion Criteria:
Patients who underwent TKR - femoral component rotation established with a use of a dynamic tensioner (FUZION)
Other: Use of dynamic tensioner
Patients who underwent standard TKR performed with measured resection technique
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
Patella positioning in the trochlear groove on computed tomography (CT) after TKR
Analysis of CT scans of patients undergoing TKR in 30 degrees of knee flexion in the days following the procedure
Time frame: January 2021 - August 2021
Range of motion after TKR
Assessment of range of motion 3 and 12 months after the surgery in the group with standard TKR and dynamic tensioner TKR
Time frame: January 2021 - January 2022
Patient-reported outcome after TKR
Assessment of patient-reported outcome 3 and 12 months after the surgery in the group with standard TKR and dynamic tensioner TKR
Time frame: January 2021 - January 2022
Prevalence of anterior knee pain after TKR
Assessment of the frequency of anterior knee pain 3 and 12 months after the surgery in the group with standard TKR and dynamic tensioner TKR
Time frame: January 2021 - January 2022
This study is completed, as verified in May 2023. You cannot join it, but the record below documents what was studied.
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Medical University of Warsaw