Table 1.
Summary of reference points, axes, angles, planes with abbreviations and related figures.
| Reference points | |
|---|---|
| Proximal caudal tibial retrocondylar axis - medial reference point (TRCAx-med) | Supplementary Figure S1 |
| Proximal caudal tibial retrocondylar axis - lateral reference point (TRCAx-lat) | Supplementary Figure S2 |
| Distal cranial tibial antecochlear axis - medial reference point (TACAx-med) | Supplementary Figure S3 |
| Distal cranial tibial antecochlear axis - lateral reference point (TACAx-lat) | Supplementary Figure S4 |
| Distal tibial shaft center (DTC) | Supplementary Figure S5 |
| Proximal tibial shaft center (PTC) | Supplementary Figure S5 |
| Lateral tibial condyle center (LTCC) | Supplementary Figure S6 |
| Medial tibial condyle center (MTCC) | Supplementary Figure S6 |
| Lateral tibial cochlear groove center (LTCGC) | Supplementary Figure S7 |
| Medial tibial cochlear groove center (MTCGC) | Supplementary Figure S7 |
| Axes | |
| Proximal caudal tibial retrocondylar axis (TRCAx) | Figure 1 |
| Distal cranial tibial antecochlear axis (TACAx) | Figure 2 |
| Proximal tibial mediolateral joint surface axis | Figure 6, Supplementary Figure S6 |
| Distal tibial mediolateral joint surface axis | Figure 6, Supplementary Figure S7 |
| Total tibial longitudinal axis | Figures 3–5, Supplementary Figure S5 |
| Proximal tibial longitudinal axis | Figure 6 |
| Distal tibial longitudinal axis | Figure 6 |
| Angles | |
| Tibial torsion angle (TTA) | Figure 5 |
| Tibial varus (or valgus) angle (TVA) | Figure 6 |
| Coordinate system and planes | |
| Tibial coordinate system | Figure 3 |
| Dorsal projection plane | Figures 3, 6 |
| Transverse projection plane | Figures 3–5 |