Table 1

Demographic Features of the Control and Treatment Groups of Patients Who Underwent Total Hip Arthroplasty*

Demographic featureControlTCP
Gender, no. (and %)
 Male, n = 4123 (56)18 (44)
 Female, n = 5123 (45)28 (55)
Age, yr
 Mean (and SD)59.1 (9.7)60.5 (8.5)
 Range37–7436–73
Weight, kg
 Mean (and SD)84.1 (19.8)81.5 (14.2)
 Range40–13853–104
Body mass index
 Mean (and SD)29.7 (6.2)28.3 (4.6)
 Range15.6–41.621.8–38.4
Diagnosis
 Osteoarthritis3536
 Post-traumatic arthritis30
 Rheumatoid arthritis44
 Psoriatic arthritis10
 Avascular necrosis23
 Epiphyseal defect11
 Diastrophic variant01
 Ankylosing spondylitis01
  • * Control = patients receiving a non-coated femoral implant, treatment = patients receiving a tricalcium phosphate (TCP) femoral implant.