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Table 3 Comparison of postoperative follow-up between the FNS and ICCS groups

From: Femoral neck system versus inverted cannulated cancellous screw for the treatment of femoral neck fractures in adults: a preliminary comparative study

 

FNS

ICCS

P value

Fracture healing (months)

2.97 ± 0.35

4.0 ± 0.39

<0.001

Nonunion

2 (4%)

4 (9%)

0.430

Femoral neck necrosis

1 (2%)

3 (7%)

0.356

Screw-out

3 (6%)

5 (11%)

0.481

Femoral neck shortening

  

0.035

 <5 mm

34 (72%)

25 (56%)

/

 5–10mm

11 (23%)

9 (20%)

/

 >10mm

2 (5%)

11 (24%)

/

Harris hip score

88.9 ± 4.3

84.4 ± 3.2

<0.05

  1. Abbreviations: FNS femoral neck system, ICCS inverted cannulated cancellous screw