Deficits of wrist extension (n = 50) Time of exam Grade After 6 months After 12 months No deficit (< 5%) 30 37 Mild (5% - 30%) 16 13 Moderate (30% - 50%) 4 0 Total 50 50 There were 16 (32%) cases of mild motor deficits and 4 (8%) cases of moderate.