Table 1 Overview of patient- and surgery-related factors with regard to their impact on the complication rate at the tibia donor site

Sex

(female/male)

21

(f = 10 vs m = 11)

f = 10% vs

m = 18.2%

0.6

0.6474

0.048 — 5.411

Age

(> 45 years, < 45 years)

21

(> 45 years = 16 vs

 < 45 years = 5)

 > 45 = 18.8% vs < 45 = 0%

2.852

0.469

0.217 — 408.107

Smoking

(yes/no)

21

(yes = 9 vs no = 12)

yes = 22.2% vs no = 8.3%

2.556

0.3999

0.282 — 32.25

Alcohol consumption (yes/no)

17

(yes = 8 vs no = 9)

yes = 25% vs no = 11.1%

2.179

0.4941

0.231 — 28.413

Comorbidity (yes/no)

21

(yes = 10 vs no = 11)

yes = 0% vs no = 27.3%

0.1156

0.1004

0.001 — 1.441

Season

(> 20°C, < 20°C)

21

(> 20°C = 8 vs

 < 20°C = 13)

 > 20°C = 37.5% vs

 < 20°C = 0%

17.18

0.02668

1.342 — 2464.329

Anaesthesia form (local vs. general)

21

(local = 4 vs general = 17)

local = 50% vs general = 5.9%

11

0.0456

1.049 — 169.36