Table 1 Overview of patient characteristics including diagnosis, treatment, complications and postoperative social status (n = 12)

 male

7

 female

5

 Mean

19 ± 10

 Median (Range)

18 (4–46)

 Mean

14 ± 3

 Median (Range)

15 (8–18)

 Osteosarcoma

9

 Chondrosarcoma

2

 Synovial sarcoma

1

 Distal Femur

9

 Proximal Femur

3

 Borggreve Rotationplasty

10

 Winkelmann Rotationplasty

2

 A I

8

 B I

1

 B II

2

 B IIIa

1

 Implant loosening

1

 Impingement

1

 Achilles tendon tear

1

 Married

5

 Divorced

-

 Never Married

7

 Living together with Partner

1

 Living separated from Partner

1

 Single living with parents

1

 Single living alone

4

 Less than compulsory

1

 Compulsory

8

 Postcompulsory

3

 University level

-

 Full-time job

7

 Part-time job

1

 Student

3

 Illness retirement

1