After accounting for baseline values , the brace group had lower knee pain than the control group at @weeks ( difference between groups -@ cm , @ % CI -@ to -@ ; p < @ ) and reduced PF BML volume ( difference -@ mm ( @ ) , @ % CI -@ to -@ ; p = @ ) but not tibiofemoral volume ( difference -@ mm ( @ ) , @ % CI -@ to @ ; p = @ ) .