Demographics

Hip » Hip hemiarthroplasty » Demographics

TABLE Patient characteristics of all patients with a primary hip hemiarthroplasty by specialism in the Netherlands in 2019

Orthopaedic surgeon Trauma surgeon Total
N 4,009 (69.2%) 1,788 (30.8%) 5,810
Mean age (years) (SD) 82.6 (8.0) 82.2 (8.3) 82.5 (8.1)
Age (years) (%)
  <50 0 0 0
  50-59 1 1 1
  60-69 5 5 5
  70-79 24 25 25
  ≥80 70 69 69
Gender (%)
  Men 32 33 33
  Women 68 67 67
ASA score (%)
  I 1 1 1
  II 27 26 27
  III-IV 72 73 72
Type of hospital (%)
  General 97 96 97
  UMC 3 4 3
Diagnosis (%)
  Fracture (acute) 96 99 97
  Osteoarthritis 2 0 1
  Late post-traumatic 1 1 1
  Tumour 1 0 1
  Osteonecrosis 0 0 0
  Dysplasia 0 0 0
  Rheumatoid arthritis 0 0 0
  Post-Perthes’ disease 0 0 0
  Inflammatory arthritis 0 0 0
Charnley-score (%)
  A One hip joint affected 61 34 58
  B1 Both hip joints affected 13 37 16
  B2 Contralateral hip joint with a total hip prosthesis 18 9 17
  C Multiple joints affected or chronic disease that affects quality of life 8 20 9
Mean Body Mass Index (kg/m²) (SD) 24.7 (4.3) 24.4 (4.2) 24.6 (4.3)
Body Mass Index (kg/m²) (%)
  Underweight (≤18,5) 5 7 6
  Normal weight (>18,5-25) 55 53 54
  Overweight (>25-30) 31 31 31
  Obesity (>30-40) 9 8 9
  Morbid obesity (>40) 0 1 0
Smoking (%)
  No 94 94 94
  Yes 6 6 6

Please note: In 2019, 73 general hospitals and 8 UMCs performed primary hip hemiarthroplasties.
General: general hospital; UMC: university medical centre; SD: standard deviation.

© LROI 2020