ADVANTAGES OF COMPUTER-NAVIGATED KNEE REPLACEMENT: IMPLICATIONS FOR BIOMECHANICS, PAIN MANAGEMENT, AND RECOVERY.

Comparative analysis between the groups demonstrated that, overall, patients who underwent navigation-assisted surgery exhibited significantly greater knee flexion amplitudes across the four time points assessed (F=31.343, p<.001). Notably, the between-group differences did not emerge immediately but became pronounced at later stages-specifically from the 6-week to the 6-month postoperative period. A statistically significant interaction between time and group was identified (Amplitudes×Group: F(3,96)=3.458, p=.019), indicating that the rate of improvement in knee flexion amplitude differed between groups. Patients treated with computer-assisted navigation recovered motion amplitude more rapidly and more completely than those who underwent the standard procedure. The results further show that by postoperative week 6, 16% more patients in the navigation-assisted group had achieved a pain-free status compared with the standard surgery group. Conversely, moderate pain was observed 16% more frequently in the standard technique group than in the navigation group at the same postoperative interval.