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Table 1 Demographics and dimensions by gender

From: Proximal femoral anatomy and collared stems in hip arthroplasty: is a single collar size sufficient?

   Female hips (n = 54) Males hips (n = 150) p-value
Mean ±SD Median Range Mean ±SD Median Range  
Age (yrs) 74.8 ±12.6 77.0 (41.0 - 93.0) 66.2 ±11.2 66.0 (35.0 - 89.0) <0.001
Femoral Head Diameter (mm) 43.8 ±2.4 44.5 (38.0 - 48.0) 49.1 ±2.6 49.0 (43.0 - 56.0) <0.001
Cortical distance (mm) 8.6 ±2.0 9.0 (3.0 - 13.0) 10.7 ±2.6 10.0 (5.0 - 24.0) <0.001
Medio-lateral Offset (mm) 40.5 ±4.3 39.8 (31.3 - 51.2) 45.3 ±5.1 45.1 (32.7 - 65.0) <0.001
Stem size (1–10) 3.7 ±1.7 3.0 (1.0 - 8.0) 5.7 ±1.7 6.0 (2.0 - 9.0) <0.001
Femoral Neck Angle (deg) 126.2 ±5.8 125.9 (112.3 - 136.4) 124.9 ±5.6 124.8 (110.5 - 140.8) 0.165
Varus Stem Model   40.7%      40.7%