Table 4 Measurement accuracies reported in the literature
Studies | Type | Intraoperative stem anteversion | Postoperative stem anteversion | Mean absolute measurement accuracy | Correlation coefficient |
|---|---|---|---|---|---|
Hirata et al. [13] | goniometer | 40.5 ± 11.6° | 34.7 ± 11.2° | 7.3 ± 5.7° | 0.798 |
Fujihara et al. [15] | goniometer | 22.7 ± 8.4° | 19.9 ± 8.4° | 4.6 ± 4.1° | |
Lee et al. [16] | goniometer | 21.5 ± 8.5° | 19.5 ± 8.7° | 4.5 ± 2.8° | 0.837 |
Hirasawa et al. [12] | CT-based navigation | 5.2 ± 4.8° | |||
Fukunishi et al. [14] | Imageless navigation | 15.5 ± 9.7° | 20.9 ± 10.6° | 5.9 ± 4.2° | |
Current study | Angle-measuring instrument | 37.9 ± 10.1° | 37.0 ± 10.4° | 4.9 ± 3.7° | 0.824 |