Table 2 Comparison of perioperative characteristics between the FNS and CCS group

Operation time (min)

79.75 ± 26.35

64.58 ± 18.56

2.234

0.031

Perioperative blood loss (ml)

69.45 ± 50.47

23.71 ± 28.13

3.794

<0.001

Preoperative Harris Score

21.25 ± 4.77

22.63 ± 5.84

−0.843

0.404

Postoperative Harris Score

85.90 ± 5.98

81.92 ± 8.34

1.785

0.081

 Excellent

6 (30.0%)

6 (25.0%)

 Good

12 (60.0%)

9 (37.5%)

 Medium

2 (10.0%)

7 (29.2%)

 Poor

0 (0.0%)

2 (8.3%)

Healing time (months)

3.53 ± 0.90

4.14 ± 1.01

−2.033

0.050

Femoral neck shortens (mm)

2.40 ± 1.81

4.54 ± 2.75

−2.979

0.005

 I

10 (50.0%)

9 (37.5%)

 II

7 (35.0%)

10 (41.7%)

 III

3 (15.0%)

4 (16.7%)

 IV

0 (0.0%)

1 (4.2%)