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Table 1 Patients’ baseline characteristics (n=114 hips).

From: Accuracy of intraoperative estimation of femoral stem anteversion in cementless total hip arthroplasty by using a digital protractor and a spirit level

Data Number (%)
Age (year)
 mean (SD) 56.8 (10.1)
 range 25–80
Gender male : female 64 : 43
Body mass index (kg/m2)
 mean (SD) 22.7 (3.7)
 range 15.8–35.0
Diagnosis:
 Osteonecrosis of femoral head 53 (46.5%)
 Primary osteoarthritis 21 (18.4%)
 Femoral neck fracture 20 (17.5%)
 Hip dysplasia 12 (10.6%)
 Post-traumatic osteoarthritis 5 (4.4%)
 Inflammatory joint disease 3 (2.6%)
Stem type N (%)
 Excia (Aesculap) 57 (50.0%)
 Avenir (Zimmer-Biomet) 48 (42.1%)
 Metha (Aesculap) 9 (7.9%)
Tibio-femoral angle a
 mean (SD) 5.1° (3.2°)
 range -2.9° to 11.9°
  1. a a positive value represents valgus, and a negative represents varus alignment