Table 2.
Separate values of all four local femoral measurements with distance in mm and angulation errors in (°)
Femur | ||||
---|---|---|---|---|
Distance along Z axis (mm) (*) | Varus (+)/valgus (−) in (°) | Flexion (−)/extension (+) in (°) | External (+)/internal (−) rotation in (°) | |
Case 1 | 0.6 | 0.3 | 3.9 | 1.5 |
Case 2 | −1.6 | −0.6 | −3.0 | 5.0 |
Case 3 | −1.9 | 2.8 | −2.8 | 1.2 |
Case 4 | 0.9 | 3.6 | 1.1 | −1.4 |
Case 5 | 0.3 | 5.7 | 0.1 | 1.2 |
Case 6 | 10.9 | 3.4 | −2.8 | 4.1 |
Case 7 | −1.5 | 4.8 | −5.0 | 1.4 |
Case 8 | 0.6 | 2.1 | −3.4 | 0.7 |
Case 9 | −1.8 | 3.4 | 1.9 | −1.4 |
Average | 0.7 | 2.8 | −0.9 | 1.4 |
SD of cases | 4.0 | 2.0 | 2.7 | 2.2 |
The bottom row represents the standard deviation of the error parameters
*Negative values indicate that more bone was removed than intended