Vaginal splint assemblies and methods for their use for treating various pelvic floor conditions are provided. One embodiment of a vaginal splint assembly includes a base portion having a connecting portion and first and second sides extending outwardly from first and seconds ends of the connecting portion to first and second free ends respectively. It further includes a plurality of apical sections each of a different size and each having a connecting portion and first and second sides extending outwardly from first and second ends of the connecting portion to first and second free ends respectively, and at least first and second coupling elements. The first coupling element is capable of securing the first free end of the base portion to the first free end of any one of the plurality of apical sections, and the second coupling element is capable of securing the second free end of the base portion to the second free end of the one apical section.