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Table 1 Demographics and diagnosis for patients with and without cortical hypertrophies

From: Fifty-six percent of proximal femoral cortical hypertrophies 6 to 10 years after Total hip arthroplasty with a short Cementless curved hip stem – a cause for concern?

  Hips with CHs Hips without CHs p-value
Demographics
 Number of hips 105 83  
 Gender (m: w) 57: 48 29: 44 0.32
 Age at surgery in years 61 (53–68) 60 (51–68) 0.92
 BMI (kg/m2) 26 (23–28) 26 (24–28) 0.46
 HHS preoperatively 59 (43–67) 62 (48–69) 0.25
 HHS postoperatively (3.3y FU) 97 (93–100) 97 (92–100) 0.89
 HHS postoperatively (7.7y FU) 98 (93–100) 96 (91–100) 0.47
 UCLA Score preoperatively 4 (3–6) 5 (3–6) 0.15
 UCLA Score postoperatively (3.3y FU) 7 (6–7) 7 (6–8) 0.35
 UCLA Score postoperatively (7.7y FU) 7 (5–7) 7 (5–7) 0.79
Diagnosis
 Primary osteoarthritis 61 46 0.71
 Developmental dysplasia 22 28 0.05
 Avascular necrosis 10 4 0.22
 Posttraumatic osteoarthritis 4 1 0.27
 Rheumatoid arthritis 5 4 0.93
 Others 3 0 0.12
  1. CH cortical hypertrophy, FU follow up; median values (interquartile range)