From: Digital protractor as an intraoperative guide to cup anteversion in total hip arthroplasty
Digital protractor group(n = 86) | Control group (n = 86) | P-value | |
---|---|---|---|
Age | 71.8 ± 9.4 | 72.3 ± 8.5 | 0.374a |
Gender(male/female) | 30/56 | 25/61 | 0.532b |
Body mass index(BMI) | 27.34 ± 3.25 | 26.52 ± 2.91 | 0.279a |
Operation side(left/right) | 48/38 | 45/41 | 0.532b |
Prosthetic types | 0.683b | ||
Cement | 23 | 22 | |
Cemetless | 63 | 64 | |
Radiographic anteversion(°) preoperation | 13.8 ± 1.1 | 14.1 ± 1.4 | 0.244a |
Radiographic anteversion(°) postoperation | 15.5 ± 1.6 | 21.4 ± 2.9 | 0.003a* |
Anteversion bias(°) | 1.59 ± 0.98 | 6.63 ± 2.28 | 0.0012a* |