Table 3 Univariate and binary logistic models for local recurrence and metastasis

Age

  ≤ 15

8 (80%)

45 (56.9%)

17 (68%)

36 (56.3%)

  > 15

2 (20%)

34 (43.1%)

0.193

8 (32%)

28 (43.7)

0.346

Gender

 Male

7 (70%)

42 (53.2%)

16 (64%)

33 (51.6%)

 Female

3 (30%)

37 (46.8%)

0.254

9 (36%)

31 (48.4%)

0.206

Anatomic location

 Femur

5 (50%)

51 (64.6%)

17 (68%)

39 (60.9%)

 Tibia

5 (50%)

28 (35.4%)

0.286

8 (32%)

25 (39.1%)

0.357

Plain radiographic pattern

 Blastic

4 (40%)

37 (46.8%)

9 (36%)

32 (50%)

 Lytic or mixed

6 (60%)

42 (53.2%)

0.474

16 (64%)

32 (50%)

0.17

Epiphysis involvement

 No involvement

1 (10%)

18 (22.8%)

2 (8%)

17 (26.6%)

 Involvement

9 (90%)

61 (77.2%)

0.321

23 (92%)

47 (73.4%)

0.045

Pathologic fracture

 No

8 (80%)

77 (97.5%)

24 (96%)

61 (95.3%)

 Yes

2 (20%)

2 (2.5%)

0.061

1 (4%)

3 (4.7%)

0.687

Perivascular space change

 Stable

9 (90%)

58 (73.4%)

8 (32%)

59 (92.2%)

 Progressed

1 (10%)

21 (26.6%)

0.234

17 (68%)

5 (7.8%)

< 0.001 

93.863

10.537–836.106

< 0.001

Limb diameter increase

 Stable

4 (40%)

56 (70.9%)

9 (36%)

51 (79.7%)

< 0.001

 Increased

6 (60%)

23 (29.1%)

0.058

16 (64%)

13 (20.3%)

31.016

3.703–259.793

0.002

Bony resection margin

 Wide

7 (70%)

44 (55.7%)

16 (64%)

35 (54.7%)

 Limited wide

2 (20%)

15 (19%)

4 (16%)

13 (20.3%)

 Ablated

1 (10%)

20 (25.3%)

0.496

5 (20%)

16 (25%)

0.725

Soft tissue margin

 Wide

5 (50%)

69 (87.3%)

19 (76%)

55 (85.9%)

 Marginal

5 (50%)

10 (12.7%)

0.011

8.982

1.869–43.171

0.006

6 (24%)

9 (14.1%)

0.206

Native joint status

 Preservation

4 (40%)

43 (54.4%)

11 (44%)

36 (56.2%)

 Resection

6 (60%)

36 (45.6%)

0.3

14 (56%)

28 (43.8%)

0.211