Table 4 Summary of different types of diagnosis and treatment

Average age (yrs)

40(15 ~ 64)

39(25 ~ 64)

50(38 ~ 60)

53(31 ~ 75)

56

Type of tumor

OS

4

3

-

1

1

GCT

5

4

6

3

-

CS

1

-

-

-

-

DF

1

-

-

-

-

MFH

1

-

-

-

-

MPNST

-

-

1

-

-

Prosthesis before revision

First/Second revision

10/2

6/1

7/0

1/3

0/1

Fixed/Rotating

3/9

2/5

2/5

1/3

1/0

Prosthetic survival time

6.25(1 ~ 15)

11(4 ~ 20)

11(3 ~ 27)

12(7 ~ 15)

7

Methods of revision

OP/Longer stem

11

5

5

1

-

Allograft + Longer-stem/OP

1

2

2

-

-

Custom short stem

-

-

-

3

1

MSTS score

27.7(26 ~ 29)

25.8(22 ~ 27)

26.2(25 ~ 27)

20.2(20 ~ 21)

20