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Table 2 Recovery course of functional scores in pre-operative and different post-operative, and radiographic parameters of scaphoid deformity

From: Wrist function recovery course in patients with scaphoid nonunion treated with combined volar bone grafting and a dorsal antegrade headless screw

  Preoperative Postoperative 3 months Postoperative 6 months Postoperative 9 months Postoperative 12 months P value*
Functional score
 Grip strengtha 51% ± 20% 50% ± 18% 70% ± 16%* 79% ± 10%* 86% ± 12%* < 0.05
 Motion arcb 56% ± 10% 48% ± 10% 66% ± 12% 78% ± 13%* 86% ± 11%* < 0.05
 DASH score 32.8 ± 18.1 43.8 ± 21.2 30.9 ± 15.3 19.0 ± 14.2 12.4 ± 11.4* < 0.05
 Mayo Wrist score 42.5 ± 14.6 40.2 ± 15.5 63.6 ± 12.5* 72.8 ± 12.7* 84.4 ± 10.8* < 0.05
Radiographic parameters
 Scaphoid axial length 24.8 ± 6.1   27.2 ± 5.3    < 0.05
 Intrascaphoid angle 43.7° ± 6.7°   30° ± 6.4°    < 0.05
 Scapholunate angle 61.6° ± 10.6°   51.3° ± 9.9°    < 0.05
 Radiolunate angle 25.8° ± 5.5°   11.3° ± 3°    < 0.05
 Carpal height ratio 46% ± 4%   52% ± 2%    < 0.05
  1. Grip strengtha (op/non-op) × 100%; motion arcb (op/non-op) × 100%
  2. *P value, significance difference under Wilcoxon rank-sum test