A balloon dilation catheter (10) includes a substantially rigid inner guide member (14) and a movable shaft (30) coupled to a balloon (36) that is slidably mounted on the substantially rigid inner guide member (14). To treat a sinus cavity of a subject using the balloon dilation the substantially rigid inner guide member (14) is advanced into a drainage pathway of the sinus (e.g., frontal recess) of the subject via a nasal passageway. The shaft (30) and balloon (36) are advanced in a distal direction over the substantially rigid inner guide member (14) to place the balloon (36) in the drainage pathway. The balloon (36) is inflated to expand or otherwise remodel the drainage pathway.
