Table 7.
Reported accuracy of CT and cross-table lateral-based measurement
| Study | Measurement modality compared | Number | Correlation coefficient | Mean error |
|---|---|---|---|---|
| Nunley et al. [24] | Cross-table lateral radiograph versus CT* | 119 | 0.82 | |
| Ghelman et al. [7] | Cross-table lateral radiograph versus CT* | 42 | 0.69 | 8.7° |
| CT versus navigation | 4 | 0.862 | 6.75° | |
| Cross-table lateral radiograph versus navigation | 4 | 0.779 and 0.786 | 9.3° and 8.2° | |
| Current study | CT versus navigation | 27 | 0.980 and 0.968 | 3.46° and 4.15° |
| Cross-table lateral radiograph versus navigation | 27 | 0.966 and 0.960 | 4.34° and 4.68° |
* Comparison of angles derived from clinical images as opposed to images of model specimens.