There are many kinds of orthotic. Each is designed to address a specific problem. Some common ones are shown below.
This is a small piece of rubber that is inserted into the heel to absorb impact during the heel strike. It also helps to reduce unnecessary knee movement.
Heel wedges and heel flares
These can be used to reduce or eliminate inversion (turning inward) or eversion (turning outward) of the foot.
This helps those who have have one leg shorter than the other by more than a half a centimetre or so.
Inner sole excavation
This is a pad filled with soft materials. It can be placed under one or more of the metatarsal heads, reducing pressure and resultant pain.
These are a flat surface placed behind the metatarsal head, and are used to relieve pressure.
These pads are used to redistribute pressure and stress from the metatarsal heads to the shafts in cases of metatarsalgia.
A gently curved device that’s placed behind the metatarsal head, this orthotic is used with those who have problems such as ulcers, helping to reduce discomfort.
These are used to promote supination or pronation.
Placed between the inner and outer sole, this reduces forefoot motion when the metatarsals and phalanges are under stress.
These promote stability and can be used to resist either inversion or eversion.
Crescent-shaped pads that are placed behind the second, third, and fourth phalanges to reduce stress.