Characteristics

≤64 years

≥65 years

p-Value

Number

63

6

Age (years)

35.1 ± 13.1

68.5 ± 4.8

-

Sex: Male/Female

32/31

3/3

0.6964

Location: Extremity/Axial

57/6

6/0

1.0000

Size (mm)

52.8 ± 17.2

55.8 ± 20.7

0.6815

Campanacci grade

Grade I/II/III/Unknown

11/28/14/10

1/0/2/3

0.1823

Pain: Present/None

59/4

5/1

0.9144

Pathological fracture: Present/None

13/50

1/5

0.7640

Surgical treatment: Present/None

59/4

5/1

0.9144

Surgical methods

0.6552

-Curettage and adjuvant therapy

43

4

-Excision

8

0

-Curettage only

8

1

Denosumab before surgery: Present/None

7/52

1/4

0.8603

Local recurrence: Present/None

19/40

3/2

0.4436

Time to local recurrence (months)

38.5 ± 56.0

15.0 ± 12.2

0.4860

Distant metastasis: Present/None

4/59

2/4

0.1380

Follow-up period (months)

83.6 ± 68.7

68.7 ± 76.5

0.6534

Outcome at the last follow-up

Alive without disease/Alive with disease/Dead

55/5/3

4/2/0

0.1326