RESULTS	After wound infections that required no or only local treatment were excluded from the analysis , antibiotic prophylaxis remained highly effective in reducing clinically important wound infections ( 1/41 ( 2 % ) v 11/43 ( 26 % ) , P < 0.01 ) and non-wound infections ( 2 ( 5 % ) v 9 ( 21 % ) , P < 0.05 ) .\