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Table 2 Comparative analysis of screw placement accuracy in 2 groups

From: Introduction of a guide based on a femoral neck section for fixation with multiple screws: a cadaveric study

group Screw parallelism (deg.) Screw area ratio DS (mm) DC (mm) DSC (mm)
AP Lateral
conventional 1.73 ± 0.62 1.52 ± 0.60 0.16 ± 0.02 10.38 ± 3.91 8.02 ± 1.51 4.21 ± 1.31
GFNS 1.68 ± 0.83# 1.61 ± 0.57# 0.29 ± 0.02* 16.87 ± 4.12* 11.05 ± 1.94* 2.40 ± 1.24*
  1. GFNS guide of femoral neck section, DS distance between screws, DC distance between the centre of FNS, DSC distance between screw to femoral neck cortex
  2. *P < 0.05; #p > 0.05 Comparing with Conventional group