A review of the results of 192 kinematic total knee replacements five to
nine years after the operation showed that the results were still
satisfactory. At the time of the review, the ages of the patients ranged
from twenty-two to eighty-seven years. About half of the patients had
rheumatoid arthritis and the other half, osteoarthrosis. About 90 per cent
of the results were rated good or excellent, and the average range of
flexion was 109 degrees. Radiolucency was present around 40 per cent of the
tibial components, 30 per cent of the femoral components, and 60 per cent
of the patellar components, but the lines were thin and not progressive.
The complications included loosening of the patellar components in five
knees, one fracture of the tibial tray with loosening of the patellar
component, one fracture of the patellar component, and one dislocation of
the patellar component.