The aim of this study is to assess the effect of systematic lateral retinacular release on anterior knee pain, as well as its impact on the functional and radiological outcomes after total knee arthroplasty with patellar resurfacing.
Anterior knee pain is an important cause of persistent pain after total knee arthroplasty. Lateral retinacular release has been proposed as a procedure to prevent anterior knee pain syndrome, based on the reduction of lateral tension and improving patellar tracking. However, its effect on anterior knee pain after total knee arthroplasty is not clear when it is not strictly needed to correct maltracking. The purpose of this trial is to evaluate the effect of systematic lateral retinaculare release on anterior knee pain, peformed during a total knee arthroplasty with patellar resurfacing.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
220
During the implantation of a total knee arthroplasty a lateral retinacular release is performed in the intervention group
Parc de Salut Mar
Barcelona, Spain
Change from baseline in Anterior Knee Pain at one year after surgery
Pressure pain threshold determined using pressure algometry
Time frame: At the preoperative visit and at the 1-year follow up
Change from baseline in Knee Pain measured by Visual Analogue Scale at one year after surgery
The Visual Analogue Scale referred by the patients at rest, when walking and when going up and downstairs. Scored between 0 (no pain at all) and 10 (maximum pain the patient could imagine).
Time frame: At the preoperative visit and at the 1-year follow up
Change from baseline in patellar pain and function at one year after surgery
Patellofemoral score designed by Feller, distributed with a maximum of 15 points for the intensity of anterior knee pain, 5 points for quadriceps strength, 5 points for the ability to rise from a chair and 5 points for stair climbing ability
Time frame: At the preoperative visit and at the 1-year follow up
Change from baseline in knee fuction, measured by the Knee Society Score, at one year after surgery
The Knee Society Score, being 0 the worst and 100 the best possible result
Time frame: At the preoperative visit and at the 1-year follow up
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