Table 2 Comparison of general data

Age [years, (\(\overline{x }\) ± S)]

44.44 ± 14.49

44.36 ± 11.47

0.016

0.987

Time interval between primary replacement and primary revision [months, (\(\overline{x }\) ± S)]

114.69 ± 94.79

129.22 ± 86.48

 − 0.756

0.477

Existence of unequal length of lower limbs [number of cases, (%)]

5 (55.56)

2 (14.29)

19.398

0.001

Receiving chemotherapy [number of cases, (%)]

2 (22.22)

5 (35.71)

0.471

0.657