Table 1 Patients’ characteristics

Age (years)

62.1 (57.7–66.5)

Sex ratio (Female : Male, n)

25:18

Body Mass Index (kg/m²)

22.6 (21.7–23.5)

Affected side (Right : Left, n)

27:16

Preoperative Koval grade

1.4 (1.1–1.6)

Charlson Comorbidity index

3.0 (2.4–3.6)

Follow-up duration (months)

12.5 (11.1–14.0)

AO/OTA Classification (31B, femoral neck)

n (%)

B1 (Subcapital)

B1.1 (valgus impacted)

13 (30.2%)

B1.2 (nondisplaced)

13 (30.2%)

B1.3 (displaced)

0

B2 (Transcervical)

B2.1 (Simple)

5 (11.6%)

B2.2 (Multifragmentary)

4 (9.3%)

B2.3 (Shear)

7 (16.3%)

B3 (Basicervical)

B3 (basicervical)

1 (2.3%)

Garden Classification

n (%)

Garden 1 (incomplete, valgus impacted)

15

Garden 2 (complete, undisplaced)

16

Garden 3 (complete, partially displaced)

4

Garden 4 (complete, completely displaced)

8

Pauwels Classification

n (%)

Pauwels 1 (< 30 degrees)

8

Pauwels 2 (30–50 degrees)

25

Pauwels 3 (≥ 50 degrees)

10