Table 2 Univariate analyses of risk factors associated with decreased ROM after surgery of tibial plateau fracture

Age (years)

0.599

 18–40

25 (43.9)

65 (39.9)

 41–60

32 (56.1)

98 (60.1)

Diabetes mellitus

5 (8.8)

17 (10.4)

0.720

Hypertension

11 (19.3)

27 (16.6)

0.638

Cerebrovascular disease

0 (0.0)

3 (1.8)

0.302

Chronic heart disease

3 (5.3)

7 (4.3)

0.762

History of any surgery

7 (12.3)

17 (10.4)

0.700

Allergy to any medications

1 (1.8)

11 (6.7)

0.153

Living area

0.555

 Rural

33 (57.9)

87 (53.4)

 Urban

24 (42.1)

76 (46.6)

Current smoking

7 (12.3)

36 (22.1)

0.108

Alcohol consumption

4 (7.0)

27 (16.6)

0.075

Preoperative duration (days)

0.030*

 1–7

32 (56.1)

117 (71.8)

 > 7

25 (43.9)

46 (28.2)

Deep vein thrombosis

14 (24.6)

21 (12.9)

0.038*

Intermuscular vein thrombosis

1 (1.8)

2 (1.2)

0.768

BMI (kg/m²)

0.331

 18.5–23.9

19 (33.3)

62 (38.0)

 < 18.5

1 (1.8)

0 (0.0)

 24–27.9

24 (42.1)

70 (42.9)

 ≥ 28.0

13 (22.8)

31 (19.0)

Anesthesia (general)

35 (61.4)

97 (59.5)

0.802

Orthopedic polytrauma

37 (64.9)

55 (33.7)

0.000*

Mechanism (high-energy)

40 (70.2)

96 (58.9)

0.131

Fracture type (Schartzker)

0.004*

 I–IV

40 (70.2)

142 (87.1)

 V–VI

17 (29.8)

21 (12.9)

Closed or open reduction procedures

0.027*

ORIF

39 (68.4)

84 (51.5)

CRMIIF

18 (31.6)

79 (48.5)

Bone grafting (yes)

16 (28.1)

44 (27.0)

0.875

Bone graft type

0.943

 Autograft

11 (19.3)

32 (19.6)

 Allograft

5 (8.8)

12 (7.4)

Operative duration (min)

0.726

 1–120

24 (42.1)

73 (44.8)

 > 120

33 (57.9)

90 (55.2)

Intraoperative blood loss (ml)

0.770

 1–400

51 (89.5)

148 (90.8)

 > 400

6 (10.5)

15 (9.2)

ASA class

0.696

 I

10 (17.5)

23 (14.1)

 II

35 (61.4)

110 (67.5)

 III or above

12 (21.1)

30 (18.4)

Intraoperative blood transfusion

2 (3.5)

5 (3.1)

0.870