Research Article

Comparison of Clinical and Biomechanical Outcomes between Partial Fibulectomy and Drug Conservative Treatment for Medial Knee Osteoarthritis

Table 3

Intergroup comparison of the 3D gait analysis results.

Drug groupFibulectomy group value

Speed§ (m/s)
 Before treatment0.81 ± 0.130.79 ± 0.210.671
 After 1 month0.83 ± 0.130.81 ± 0.170.643
 After 3 months0.85 ± 0.140.87 ± 0.180.634
 After 6 months0.84 ± 0.140.92 ± 0.160.011
 After 1 year0.84 ± 0.160.93 ± 0.200.016
Cadence§ (steps/min)
 Before treatment48.81 ± 6.0048.53 ± 6.240.820
 After 1 month50.50 ± 6.6550.75 ± 5.910.848
 After 3 months50.29 ± 5.4951.09 ± 5.530.367
 After 6 months50.23 ± 7.4251.70 ± 5.970.286
 After 1 year50.28 ± 7.3852.06 ± 6.210.202
Walking knee ROM§ (°)
 Before treatment56.96 ± 7.1556.34 ± 9.010.707
 After 1 month58.16 ± 7.4460.47 ± 8.430.156
 After 3 months58.99 ± 8.2460.91 ± 7.700.238
 After 6 months58.95 ± 8.0060.99 ± 8.210.217
 After 1 year58.39 ± 7.4162.04 ± 7.350.017
Overall peak KAM§ (Nm/kg·Ht)
 Before treatment0.30 ± 0.080.31 ± 0.080.539
 After 1 month0.30 ± 0.090.25 ± 0.070.007
 After 3 months0.29 ± 0.080.26 ± 0.080.030
 After 6 months0.29 ± 0.080.26 ± 0.080.057
 After 1 year0.30 ± 0.080.26 ± 0.080.004
HKA angle§ (°)
 Before treatment2.50 ± 0.782.59 ± 2.850.831
 After 1 month2.47 ± 0.741.62 ± 2.200.013
 After 3 months2.50 ± 0.811.62 ± 2.220.011
 After 6 months2.45 ± 0.811.62 ± 2.230.017
 After 1 year2.47 ± 0.761.60 ± 2.200.011

Walking knee ROM: walking flexion/extension range of motion of the knee joint; KAM: knee adduction moment; HKA angle: hip-knee-ankle angle; §multivariate analysis of variance.