The purpose of the study is to compare the clinical outcome after two total knee endoprosthesis designs Medacta GMK Sphere and Medacta GMK PS. Primary outcome measures KOOS, Forgotten Knee Score and range of motion. Single-center, randomized trial
The clinical outcome measures were measured preoperativ and postoperativ (1 year, 5 year and 10 year). Secondary outcome measures: number of reoperations and revisions, survival of the prosthesis The patient population would consist patients with knee osteoarthritis eligible for total knee replacement The aim of the study is to evaluate the effect of the knee prosthesis design on the patient outcome
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SCREENING
Masking
NONE
Total knee endoprosthesis after knee joint osteoarthritis
Kantonsspital Winterthur
Winterthur, Canton of Zurich, Switzerland
Change in Knee injury and Osteoarthritis Outcome Score
Knee injury and Osteoarthritis Outcome Score: 100 = maximum score, 0 = minimum score
Time frame: preoperative, 1 year, 5 year and 10 year after surgery
Change in Forgotten Joint Score
Forgotten Joint Score: 100 = maximum score, 0 = minimum score
Time frame: 1 year, 5 year and 10 year after surgery
Change in revison
Revision rate comparision with the baseline at 1 year
Time frame: 1 year, 5 year and 10 year after surgery
Change in range of motion
Range of motion
Time frame: preoperative, 1 year, 5 year and 10 year after surgery
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