|
Total
|
391 (100%)
|
28.9%
|
63.9%
|
83.1%
|
27.2%
|
61.0%
|
78.6%
|
|
Nominal variables
|
|
Year
|
|
2018
|
67 (17.1%)
|
26.9%
|
61.2%
|
82.1%
|
32.7%
|
75.0%
|
88.5%
|
|
2019
|
122 (31.2%)
|
33.6%
|
66.4%
|
86.9%
|
28.2%
|
60.0%
|
82.7%
|
|
2020
|
139 (35.5%)
|
26.6%
|
63.3%
|
80.6%
|
23.8%
|
54.8%
|
71.4%
|
|
2021
|
63 (16.1%)
|
27%
|
63.5%
|
82.5%
|
27.6%
|
63.8%
|
77.6%
|
|
P value*
| |
0.590
|
0.904
|
0.585
|
0.663
|
0.087
|
0.046 (post-hoc analysis revealed no significance)
|
|
Gender
|
|
Male
|
193 (49.4%)
|
30.1%
|
65.8%
|
85.0%
|
20.8%
|
53.8%
|
76.3%
|
|
Female
|
198 (50.6%)
|
27.8%
|
62.1%
|
81.3%
|
33.5%
|
68.2%
|
80.9%
|
|
P value*
| |
0.620
|
0.448
|
0.334
|
0.008
|
0.006
|
0.294
|
|
Indication for surgery
|
|
AVN
|
100 (25.6%)
|
24.0%
|
69.0%
|
83.0%
|
18.8%
|
49.0%
|
70.8%
|
|
DDH
|
198 (50.6%)
|
31.8%
|
65.7%
|
86.9%
|
32.2%
|
70.7%***
|
84.5%
|
|
DJD
|
37 (9.5%)
|
27.0%
|
64.9%
|
81.1%
|
28.6%
|
60.7%
|
75.0%
|
|
Fracture
|
19 (4.9%)
|
21.1%
|
47.4%
|
84.2%
|
23.5%
|
58.8%
|
70.6%
|
|
Revision
|
24 (6.1%)
|
41.7%
|
54.2%
|
62.5%***
|
22.2%
|
44.4%
|
72.2%
|
|
Other (acetabular fracture N = 1, hip fusion N = 2, hemophilia DJD N = 1, perthes N = 6, septic arthritis N = 3)
|
13 (3.3%)
|
15.4%
|
38.5%
|
69.2%
|
30.8%
|
46.2%
|
84.6%
|
|
P value*
| |
0.339
|
0.141
|
0.048
|
0.297
|
0.007
|
0.126
|
|
Stem brand (N = 391, 346 was considered for accuracy estimation)
|
|
Fitmore®
|
120 (27.8%)
|
22.5%
|
65.0%
|
84.2%
|
21.2%
|
45.2%***
|
71.2%
|
|
Fitmore® extended
|
71 (16.5%)
|
26.8%
|
62.0%
|
84.5%
|
25.7%
|
60.0%
|
77.1%
|
|
M/L taper
|
51 (11.8%)
|
29.4%
|
62.7%
|
86.3%
|
34.8%
|
67.4%
|
82.6%
|
|
Wagner Cone®
|
48 (11.1%)
|
52.1%***
|
72.9%
|
87.5%
|
41.7%
|
81.3%***
|
91.7%
|
|
Accolade® ****
|
11 (2.6%)
|
9.1%
|
36.4%
|
72.7%
|
–
|
–
|
–
|
|
CORAIL®
|
61 (14.2%)
|
24.6%
|
67.2%
|
82.0%
|
23.7%
|
72.9%
|
83.1%
|
|
Müller™ ****
|
2 (0.5%)
|
0.0%
|
100.0%
|
100.0%
|
–
|
–
|
–
|
|
Wagner SL revision®
|
21 (4.9%)
|
38.1%
|
42.9%
|
61.9%
|
21.1%
|
47.4%
|
68.4%
|
|
Unknown brand (lack of data)
|
6 (1.5%)
|
–
|
–
|
–
|
–
|
–
|
–
|
|
P value*
| |
0.006
|
0.153
|
0.321
|
0.104
|
0.001 <
|
0.058
|
|
Cup brand
|
|
Continuum®
|
226 (52.4%)
|
31.4%
|
60.2%
|
82.3%
|
30.1%
|
61.2%
|
78.5%
|
|
PINNACLE®
|
63 (14.6%)
|
25.4%
|
66.7%
|
81.0%
|
23.0%
|
72.1%
|
82.0%
|
|
Trident®
|
11 (2.6%)
|
9.1%
|
36.4%
|
72.7%
|
–
|
–
|
–
|
|
Trilogy®
|
81 (18.8%)
|
28.4%
|
76.5%
|
88.9%
|
25.4%
|
49.3%
|
77.6%
|
|
Trilogy® IT
|
7 (1.6%)
|
14.3%
|
57.1%
|
85.7%
|
0.0%
|
57.1%
|
57.1%
|
|
Other (cage N = 1, shell N = 1, Dual mobility N = 1)
|
3 (0.7%)
|
33.3%
|
66.7%
|
66.7%
|
0.0%
|
100.0%
|
100.0%
|
|
P value*
| |
0.558
|
0.052
|
0.593
|
0.292
|
0.078
|
0.572
|
|
Continuous variables (mean of variable in the accurate group versus inaccurate group)
|
|
Age (mean ± SD)
| |
44.7 ± 13.8 versus 42.8 ± 15.3
|
43.9 ± 14.1 versus 42.3 ± 16.3
|
43.5 ± 14.8 versus 42.2 ± 15.5
|
41.2 ± 14.2 versus 43.4 ± 15.0
|
42.2 ± 14.6 versus 43.8 ± 15.1
|
42.5 ± 14.7 versus 44.1 ± 15.2
|
|
P value**
| |
0.252
|
0.332
|
0.508
|
0.216
|
0.313
|
0.410
|
|
BMI (Kg m−2, mean)
| |
25.0 ± 4.0 versus 24.5 ± 4.5
|
24.4 ± 4.2 versus 25.0 ± 4.6
|
24.5 ± 4.4 versus 25.2 ± 4.3
|
24.5 ± 4.3 versus 24.6 ± 4.3
|
24.5 ± 3.9 versus 24.5 ± 4.6
|
24.4 ± 4.4 versus 24.9 ± 3.8
|
|
P value**
| |
0.249
|
0.183
|
0.243
|
0.919
|
0.972
|
0.428
|
|
Cup diameter (mm, mean)
| |
51.2 ± 4.5 versus 52.5 ± 4.1
|
51.9 ± 4.1 versus 52.5 ± 5.6
|
52.0 ± 4.2 versus 52.6 ± 4.7
|
51.1 ± 4.4 versus 52.5 ± 4.2
|
51.5 ± 4.4 versus 53.1 ± 3.9
|
51.8 ± 4.4 versus 53.2 ± 3.8
|
|
P value**
| |
0.007
|
0.195
|
0.346
|
0.008
|
0.001 >
|
0.012
|
