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Demographics

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.