A bone screw for treating a bone fracture having a detent assembly on a body portion thereof. The detent assembly includes a detent member that is movable between a first and second position. The detent assembly operative to secure the body whereby said plunger portion moves independent of said body. The bone screw may also include a plunger assembly having a plunger with a threaded portion and a plunger portion. The plunger portion is slidably disposed within a chamber of the body.