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Table 2 Baseline demographics and fracture classification

From: Surgical treatment of displaced isolated lateral malleolar fractures: incidence of adverse events requiring revision: a retrospective cohort study

Baseline characteristics

 Sex (% male)

54 (50%)

 Age in median years (range)

45.5 [18–82]

ASA score1 (no. of patients (% of study population)

 1. Normal healthy individual

61 (56.5%)

 2. Mild systemic disease not limiting activity

42 (38.9%)

 3. Severe systemic disease limiting activity but not incapacitating

5 (4.6%)

Active Smoker (no. of patients (% of study population)

38 (35.2%)

Alcohol abuse2 (no. of patients (% of study population)

7 (6.5%)

Body mass index3 (mean SD [Range])

26.5 (± 4.3 [17.6–40.3])

Diabetes Mellitus (Type I or II) (no. of patients (% of study population)

5 (4.6%), all Type II

AO classification4 (no. of patients (% of study population)

 AO44B1

96 (88.8%)

 AO44C1

10 (9.3%)

 AO44C2

2 (1.9%)

Median fibular fracture displacement5 (millimeters) (IQR, Range)

3,4 (1.8 [2. 1–8.9])

  No. of patients with 2–4 mm displacement

76 (70.4%)

  No. of patients with more than 4 mm displacement

32 (29.6%)

  1. 1. American Society of Anesthesiologists Classification (ASA Class) system for categorization of a patient’s physiological status [40]. 2. Alcohol abuse is defined as consuming more than 14 units per week for men, 7 for women [41]. 3. Body mass index defined as the body mass divided by the square of the body height, kg/m2 [42]. 4. Arbeitsgemeinshaft für Osteosyntesefragen (AO-) classification [28]. 5. Fibular fracture diastasis, as defined in Fig. 2