Table 1 Accuracy of the model-based technique for tracking the patella and femur was expressed in terms of bias and precision as mean ± standard deviation.
Bias | Precision | Overall Dynamic Accuracy | ||||
|---|---|---|---|---|---|---|
Axis | Patella | Femur | Patella | Femur | Patella | Femur |
X | -0.014 ± 0.133 | 0.207 ± 0.099 | 0.061 ± 0.027 | 0.049 ± 0.011 | 0.220 ± 0.044 | 0.234 ± 0.064 |
Y | -0.174 ± 0.114 | -0.022 ± 0.125 | 0.062 ± 0.028 | 0.038 ± 0.005 | 0.211 ± 0.035 | 0.149 ± 0.048 |
Z | 0.248 ± 0.158 | 0.218 ± 0.099 | 0.042 ± 0.007 | 0.023 ± 0.004 | 0.335 ± 0.127 | 0.276 ± 0.062 |