Table 1 Patient baseline characteristics

Gender

 female

18 (29.2%)

 male

43 (70.8%)

Age at first procedure (years)

65.4 (7.3)

BMI (kg/m²)

27.4 (3.6)

Bilateral ankle replacement

4 (6.6%)

 Side^a

 right

38 (58.5%)

 left

27 (41.5%)

Indication for operation^a

 arthritis

51 (78.5%)

 rheumatoid arthritis

8 (12.3%)

 hemochromatosis

4 (6.2%)

 hemophilia

1 (1.5%)

 tuberculosis

1 (1.5%)

Follow-up time (months)

47.8 (24.5)

Adjacent disease^b

49 (80.3%)

 talonavicular joint

13 (21.3%)

 subtalar joint

27 (44.3%)

 Chopart

16 (26.2%)

 midfoot

6 (9.8%)

 other

3 (4.9%)

Subtalar arthrodesis prior to procedure

2 (3.3%)

Double arthrodesis prior to procedure

3 (4.9%)