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

From: Clinical outcome of femoral neck system versus cannulated compression screws for fixation of femoral neck fracture in younger patients

  FNS CCS t P Value
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
Garden alignment index
 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%)