Table 2.
Details of patients with a rotational mismatch between femoral and tibial component of 10° or more (outlier group)
| Study # | Rotational alignment in degrees | Kinematic analysis | KSS function scored | ||||
|---|---|---|---|---|---|---|---|
| Femura | Tibiab | Mismatchc | Preop. | Follow-up | Difference | ||
| 1 | −0.9 | 17.8 | 11.8 | No | 60 | 55 | −5 |
| 4 | −1.1 | 10.6 | 14.4 | Yes | 60 | 50 | −10 |
| 26 | 0.1 | 20.9 | 10.9 | Yes | 45 | 45 | 0 |
| 29 | 3.5 | −9.2 | −13.3 | Yes | 60 | 60 | 0 |
| 32 | 1.7 | −14.9 | −12.1 | Yes | 80 | 80 | 0 |
| 36 | 3.1 | 8.3 | −16.2 | No | 60 | 50 | −10 |
| 47 | 1.7 | −2.2 | 10.6 | Yes | 70 | 80 | 10 |
| 60 | 0.8 | 17.8 | 14.1 | Yes | 55 | 50 | −5 |
| 65 | 3.2 | 0.0 | 12.7 | Yes | 50 | 45 | −5 |
a Rotational alignment of the femoral component. Positive values indicate internal rotation of the femoral component relative to the transepicondylar axis
b Rotational alignment of the tibial baseplate. Positive values indicate internal rotation of the tibial baseplate relative to the medial third of the tibial tuberosity
c Rotational mismatch between femoral and tibial component. Positive values indicate femoral internal rotation relative to the tibia
d Knee Society function score in points between 0 and 100