The purpose of this study is to determine if there are any clinical or radiographic differences in cemented total knee arthroplasty with an oxidized zirconium and a cobalt-chromium femoral knee component.
Although it has been claimed that total knee arthroplasties with an oxidized zirconium femoral knee component had beneficial wear properties in vitro, there are conflicting clinical results. The purpose of the present study was to compare the clinical, subjective, and radiographic results as well as the weight, size and shape of polyethylene wear particles in the patients with an oxidized zirconium and a cobalt-chromium femoral knee component.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
331
Oxidized Zirconium femoral component of Genesis II TKR system is used.
Cobalt Chrome Femoral Component of Genesis II TKR system is used
Ewha Womans University Mokdong Hosptial
Seoul, South Korea
Improvement in Knee Society Knee Score
change in knee score will be compared with initial score, until mean follow up of 20 years.
Time frame: Initial(one day before surgery), and at 3 months, 1 year, then annually after surgery
Improvement in the range of motion
change in the range of motion of knee joint will be compared with the initial value, until mean follow up of 20 years.
Time frame: Initial(one day before surgery), and at 3 months, 1 year, then annually after surgery
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