Early results of total knee replacements: "a clinical and radiological evaluation"

From March 1986 to June 1992, 100 primary total knee arthroplasties were done in 69 patients. The demographic data and complications were analysed in these 69 patients. The first 50 knees with a minimal follow-up of one year (range 1-6 years) were analysed in more detail according to the International Knee Society Rating System. Detailed radiological evaluation was also carried out to assess positioning of the components. There were 79 knees with osteoarthritis, 20 knees with rheumatoid arthritis and one with Systemic Lupus Erythromatosus (SLE). The knee score was poor in all knees pre-operatively. Post-operatively 78% had good to excellent score and the other 22% had fair knee score. However the functional score remained poor in 50% of the knees. Ideal tibio-femoral alignment was obtained in 68% of the knees. Twenty four percent of the knees had 0.4 degrees of varus and eight percent had 10-12 degrees valgus. Complication rate was low with 1% of infection (one knee). Overall early results were satisfactory.