|
Gender (Male: Female)
|
18:82
|
5:9
|
0.154
|
|
Age
|
62.3 ± 13.7
|
66.8 ± 7.7
|
0.231
|
|
Diagnosis (OA:ION:RA)
|
62:32:6
|
10:1:3
|
0.039b
|
|
ASA-PS (I:II:III)
|
37:44:19
|
2:5:7
|
0.027b
|
|
BMI
|
23.6 ± 3.8
|
23.7 ± 4.1
|
0.903
|
|
Preoperative Hb
|
12.6 ± 1.5
|
12.3 ± 1.4
|
0.411
|
|
Preoperative JOA hip score
|
38.8 ± 13.4
|
38.1 ± 17.6
|
0.864
|
|
Surgical time (minutes)
|
77.3 ± 23.7
|
115.1 ± 40.7
|
0.001a
|
|
Intraoperative blood loss (ml)
|
256 ± 186
|
506 ± 558
|
0.001a
|
|
Estimated total blood loss (ml)
|
835 ± 340
|
1084 ± 649
|
0.026a
|
|
Allogeneic blood transfusion
|
13 (13%)
|
5 (36%)
|
0.045b
|
|
Cup abduction angle (degrees)
|
41.0 ± 4.1
|
42.2 ± 7.9
|
0.388
|
|
Cup anteversion (degrees)
|
16.8 ± 5.1
|
18.5 ± 6.9
|
0.254
|
|
Cup safe zone
|
94 (94%)
|
11 (79%)
|
0.080
|
|
Stem varus angle (degrees)
|
0.1 ± 0.5
|
0.0 ± 0.0
|
0.494
|
|
Stem flexion angle (degrees)
|
0.6 ± 1.0
|
0.3 ± 0.7
|
0.262
|
|
Stem safe zone
|
94 (94%)
|
14 (100%)
|
1.000
|
|
Leg length discrepancy (mm)
|
6.4 ± 9.0
|
5.4 ± 7.4
|
0.673
|
|
Postoperative JOA hip score
| | | |
|
At three months
|
84.4 ± 9.4
|
77.9 ± 7.6
|
0.014a
|
|
At two years
|
87.8 ± 8.2
|
83.6 ± 6.1
|
0.066
|
|
Surgical complication (category 2 and 3)
|
5 (5%)
|
0 (0%)
|
1.000
|
|
Revision
|
1 (1%)
|
0 (0%)
|
1.000
|
