Osteoarthritis, Pain
Conditions
Keywords
Replacement, Knee, Patella, Arthroplasty
Brief summary
Background: The best treatment of the patella during total knee arthroplasty (TKA) is controversial. The implantation of a patellar component adds to the operation time and the costs of the operation.There is a huge variation as to whether the patella is resurfaced or not during TKA. Meta-analysis of prospective, randomised trials might indicate that patellar resurfacing reduces the risk of reoperation and anterior knee pain, but drawing firm conclusions is not possible and additional, high quality randomised trials are required. Purpose: The aim of this study is to determine whether ther is a difference between the two groups in knee pain, functions, patient satisfaction and quality of life after TKA.
Interventions
PROCEDUREPatellar component
Resurfacing with onlay technique
PROCEDURENo patellar component
Trimming of osteophytes when appropriate
Sponsors
Sykehuset Innlandet HF
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
No minimum to 85 Years
Healthy volunteers
No
Inclusion criteria
* Patients less than 85 years old with osteoarthritis scheduled for primary knee arthroplasty.
Exclusion criteria
* Patients who are not able to cooperate * Serious deformity (not suitable for a standard CR prosthesis) * Patellar thickness less than 18 mm * Prior operation involving the extensor mechanism * Rheumatoid arthritis * Severe medical disability limiting the ability to walk * Revision surgery * Knees with predominantly patellofemoral arthrosis
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Knee injury and Osteoarthritis Outcome Score | 3 years follow up |
Secondary
| Measure | Time frame |
|---|---|
| Oxford score, Knee Society score, Stair climbing test, Pain (VAS), Patient satisfaction (VAS) | 3 years follow up |
Countries
Norway
Outcome results
None listed