Abstract:

BACKGROUND: Recently, there are different opinions for the knee function improvement after fixed-bearing and mobile-bearing total knee arthroplasty.
OBJECTIVE: To compare the clinical outcomes between fixed-bearing and mobile-bearing for total knee arthroplasty.
METHODS: Ninety patients with osteoarthritis were treated by fixed-bearing total knee arthroplasty (n=47) or mobile-bearing total knee arthroplasty (n=43). All the data were analyzed including the total knee score, pain score, patient function score, patellar score and motion of the knee joint before total knee arthroplasty, 1, 3 and 6 months and 1 year after total knee arthroplasty, and there was no significant different before replacement between two groups.
RESULTS AND CONCLUSION: There was no significant difference between the two groups in the total knee score, pain score, patient function score and patellar score at 1 and 3 months after replacement (P > 0.05). After 6 months and 1 year, the total knee score, pain score, patient function score and patellar score in the mobile-bearing group were significantly higher than those in the fixed-bearing group (P < 0.05). It indicates that both mobile-bearing and fixed-bearing total knee arthroplasty can improve the knee function, and recent study found that the effect of mobile-bearing is better than that of fixed-bearing.