Table 5. Rotational measurements of the displaced fragments with respect to the coronal (C), sagittal (S) and axial (A) planes of the reference coordinate system (°).
| Fracture type | No. | CT osteotomised vs. CT reference (same side) | CT osteotomised vs. CT reference (contralateral) | CT osteotomised vs. MRI reference (contralateral) | MRI osteotomised vs. MRI reference (contralateral) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | S | A | C | S | A | C | S | A | C | S | A | |||||
| Type B | 1* | −0.18 | −0.17 | −1.03 | −0.03 | −0.14 | −4.23 | −0.01 | −0.17 | −4.08 | −0.25 | −0.27 | −3.67 | |||
| 2 | −1.61 | −1.22 | −3.27 | −2.18 | −0.92 | −2.23 | −1.63 | −1.02 | −1.99 | −1.81 | −0.99 | −2.04 | ||||
| 3 | −0.19 | −0.18 | −1.86 | −0.78 | −0.86 | −0.49 | −0.66 | −0.9 | −0.85 | −0.30 | −0.39 | −0.6 | ||||
| Type C | 4^ | −5.80 | −3.98 | 1.48 | −5.76 | −2.55 | 3.09 | −5.37 | −2.19 | 1.48 | NA | NA | NA | |||
| 5^ | −3.03 | −1.55 | 10.87 | −1.27 | −1.58 | 9.23 | −1.37 | −2.07 | 10.86 | NA | NA | NA | ||||
*, denotes the specimen that had correct anatomical articular reduction. ^, denotes specimens whose mri-based models had metal artefacts extending to the subchondral surface. CT, computed tomography; MRI, magnetic resonance imaging; NA, not applicable.