What do you mean by common posting? Are you talking about orthotic designs based off of dx?
To me, posting = wedging.
sesamoiditis; dancer pads
hallux rigidus; morton's extension
kinetic wedges
metatarsal bars
metatarsal pads
toe crest pads
neuroma pads
reverse morton's extension
double dancer pads
bunion flaps
accessory navicular flap
toe fillers
carbon footplates
is that what you mean? these can be used for a bunch of diff. dxs