An orthotic brace for an anatomic joint includes an upper brace portionfor securement about an upper limb portion of the joint and a lower braceportionpivotally coupled to the upper brace portion for securement about a lower limbportionof the joint. A cable guide is pivotal relative to the lower brace portion andis operativebetween a working condition fixed for rotation with the upper brace portionrelative tothe lower brace portion and a released condition in which the upper braceportionpivots independently. A spring is coupled between the lower brace portion andacable about the cable guide to bias towards an extended position in theworkingcondition of the cable guide. Stops on the guide prescribe the range of biasedmotionin the working condition and independent stops on the brace portions prescribetherange of unbiased motion in the released condition.
