Demographics

Shoulder » Primary shoulder arthroplasty » Demographics »Patient characteristics by type of shoulder prosthesis

TABLE Patient characteristics of all patients with a registered primary shoulder arthroplasty by type of primary shoulder arthroplasty in the Netherlands in 2019

Reverse Total anatomical Hemi Total¹
N (n=2,402) (n=605) (n=238) (n=3,255)
Mean age (years) (SD) 73.8 (7.9) 65.9 (9.2) 64.8 (10.8) 71.7 (9.1)
Age (years) (%)
  <50 1 4 8 2
  50-59 3 19 19 7
  60-69 21 41 36 26
  70-79 51 30 30 46
  ≥80 24 6 7 19
Gender (%)
  Men 25 31 35 27
  Women 75 69 65 73
ASA score (%)
  I 5 14 15 8
  II 55 65 56 57
  III-IV 40 21 29 35
Type of hospital (%)
  General 95 83 87 92
  UMC 2 1 8 2
  Private 3 16 5 6
Diagnosis (%)
  Osteoarthritis 33 88 57 45
  Cuff arthropathy 23 0 1 17
  Fracture 17 1 16 14
  Post-traumatic 10 4 12 9
  Cuff rupture 10 0 1 8
  Rheumatoid arthritis 2 2 1 2
  Osteonecrosis 2 4 8 2
  Other 3 1 4 3
Walch score (%)
  A1 Humeral head centered, minor erosion glenoid 51 39 66 50
  A2 Humeral head centered, major erosion glenoid 28 30 21 28
  B1 Humeral head subluxed posteriorly, posterior joint space narrow, subchondrial sclerosis and osteophytes 9 19 6 11
  B2 Humeral head subluxed posteriorly retroverted, glenoid with posterior rim erosion 7 9 4 8
  B3 Humeral head subluxed posteriorly more than 70 percent and glenoid retroversion more than 10 degrees 3 2 1 2
  C Glenoid retroversion more than 25 degrees regardless of erosion 2 1 2 1
Mean Body Mass Index (kg/m²) (SD) 28.3 (5.3) 28.4 (5.0) 28.9 (5.3) 28.3 (5.2)
Body Mass Index (kg/m²) (%)
  Underweight (≤18,5) 1 0 0 1
  Normal weight (>18,5-25) 27 27 23 27
  Overweight (>25-30) 41 40 44 41
  Obesity (>30-40) 28 31 30 28
  Morbid obesity (>40) 3 2 3 3
Smoking (%)
  No 92 90 89 91
  Yes 8 10 11 9

¹ Also contains 10 (0.3%) primary shoulder arthroplasties of which the the type of prosthesis had not been registered.
Reverse: reverse total shoulder arthroplasty; Total anatomical: anatomic total shoulder arthroplasty; Hemi: shoulder hemiarthroplasty; General: general hospital; UMC: university medical centre; Private: private hospital; SD: standard deviation.

© LROI 2020

The Number of registered shoulder hemiarthroplaties in the LROI is not complete, since these procedures are also performed by trauma surgeons. For 2019, only shoulder hemiarthroplasties that were carried out by orthopaedic surgeons were registered in the LROI.

Shoulder » Primary shoulder arthroplasty » Demographics » Age category 2014-2019

FIGURE Trend (proportion [%] per year) in age category in primary total (anatomical or reverse) shoulder arthroplasties in the Netherlands in 2014-2019

Year

Age category (%)

<50
1.69
1.60
2.00
2.18
1.94
1.53
1.83
1.83

50-59
5.83
6.32
6.52
6.81
7.61
6.48
6.67
6.67

60-69
24.47
25.66
26.22
25.01
26.54
24.78
25.48
25.48

70-79
44.92
45.92
46.01
46.10
45.63
47.09
46.05
46.05

>80
23.09
20.51
19.25
19.91
18.28
20.12
19.98
19.98


Total (n):
14,175
1,594
2,058
2,254
2,527
2,735
3,007

TSA: total shoulder arthroplasty.

© LROI 2020

Shoulder » Primary shoulder arthroplasty » Demographics » Previous surgery by type of shoulder prosthesis

TABLE Previous surgeries to the same joint in patients who underwent a primary shoulder arthroplasty by type of primary shoulder arthroplasty in the Netherlands in 2019

Reverse Total anatomical Hemi
(n=2,374) (n=589) (n=237)
Proportion¹ (%)  Proportion¹ (%)  Proportion¹ (%) 
Previous surgery to the relevant shoulder (total) 17.6 15.1 16.0
Osteosynthesis 5.7 5.6 9.0
Acromioplasty 7.2 3.1 4.6
Rotator cuff repair 9.9 1.2 3.1
Distal clavicle resection 2.9 2.1 2.0
Stabilisation procedure 1.0 3.9 2.0
Other 0.0 0.0 0.0

¹ A patient may have undergone multiple previous surgeries to the same joint. As such, the total proportion is more than the total proportion of patiens with one or more previous surgeries to the same joint.
Reverse: reverse total shoulder arthroplasty; Total anatomical: anatomic total shoulder arthroplasty; Hemi: shoulder hemiarthroplasty.

© LROI 2020