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Table 1 Patient demographics

From: Primary total hip arthroplasty using a short bone-conserving stem in young adult osteoporotic patients with Dorr type C femoral bone

Demographics Data
Gender 27 male (33 hips) and 8 female (9 hips)
Mean age 27.5 ± 3.7 years (range 20.3 to 35.8 years)
Mean height 167 ± 6.8 cm(165.5 ± 7.6 cm)
Mean weight 62.7 ± 3.6 kg (61.5 ± 7.1 kg)
BMI 20.2 kg/m2 (range, 16.8–23.2 kg/m2)
Disease Rheumatoid arthritis (RA) in 20 hips (25 patients), ankylosing spondylitis (AS) in 10 hips (12 patients), osteoarthritis in 5 hips (5 patients)
Follow-up time 5.5 ± 1.1 years (range, 3.0–8.0 years)
Femoral cavity 0.76 ± 0.30 (range 0.67 to 0.92)
Femoral canal dimension(isthmus) 18.7 ± 2.6 mm (range 15.8 to 22.6 mm)
Femoral stem prosthesis subsidence in the last follow-up 0.39 ± 0.21 (range 0.22 to 0.47)