|
Demographic characteristics
| | | |
|
Age✝ (year)
|
66.2 (7.3)
|
67.6 (8.7)
|
68.1 (6.2)
|
0.44
|
| Female gender◆ |
43 (95.6%)
|
42 (93.3%)
|
40 (88.9%)
|
0.47
|
|
Body mass index✝ (kg/m2)
|
26.3 (3.7)
|
26.2 (3.7)
|
27.3 (4.7)
|
0.37
|
|
Estimated blood volume✝ (ml)
|
3146 (310)
|
3090 (246)
|
3227 (401)
|
0.14
|
| DM◆ |
34 (75.6%)
|
36 (80.0%)
|
34 (75.6%)
|
0.9
|
|
ASA classification (II/III) (no. of patients)
|
29/16
|
20/25
|
20/25
|
0.1
|
|
Preoperative laboratory values
|
|
Preoperative hemoglobin✝ (g/dL)
|
12.1 (1.1)
|
11.9 (1.0)
|
12.6 (1.3)*c
|
0.02*
|
|
Surgical characteristics
|
| Regional anesthesia◆ |
42 (93%)
|
39 (87%)
|
43 (96%)
|
0.38
|
| Right side◆ |
26 (57.8)
|
25 (55.6)
|
23 (51.1)
|
0.86
|
| Preoperative mechanical axis◼ |
4.9 varus (15 varus to 8 valgus)
|
5.0 varus (16 varus to 13 valgus)
|
5.2 varus (20 varus to 6 valgus)
|
0.97
|
|
Operative time✝ (minute)
|
79.1 (14.3)
|
78.8 (13.0)
|
81.1 (13.1)
|
0.65
|
|
Surgical incision✝ (cm)
|
12.5 (2.2)
|
12.3 (2.2)
|
13.2 (1.2 )
|
0.09
|
|
Functional characteristics
|
|
Preoperative KSK Score✝
|
77.3 (11.0)
|
76.8 (11.9)
|
76.4 (13.3)
|
0.94
|
|
Preoperative WOMAC score✝
|
59.8 (9.5)
|
60.3 (9.8)
|
60.0 (9.7)
|
0.98
|
