Foot orthoses are commonly used to deal with a variety of foot problems from overpronation and collapsed arches to plantar fasciitis and other reasons for heel pain. The scientific evidence points too they are generally effective at fixing most of the disorders as long as they are indicated for that problem, Foot orthotics usually get used to support the foot, when support of the foot could have absolutely nothing to do with the problem that the person may have. This might lead to them being misused and improperly blamed for treatment failures. Another concern is that there are many different types of foot orthoses and even within every type of foot orthotic, there is an almost infinite variance in the design features that could be integrated into them. If even one of those design features is not suitable for the person, then the probability of that foot orthotic helping is probably reduced. For this reason the choice of the various designs is actually determined by the experience and expertise of the medical professional.

The podiatrist will decide on the design features required for the individual and if the device needs to be customized for the person or if a premade less expensive foot orthotic can be used. In relation to custom made orthotics, the clinician needs to take a plaster cast or optical scan of the foot held in specific positions for the foot orthotic to be made on. When it comes to the style of the device various elements are taken into account. For example, if the patient has adult acquired flat foot, then something like a MOSI type foot orthotic is necessary. The MOSI has special modifications to handle the range of problems that occur in that condition. When the concern is linked to deficiencies in shock absorption, then the orthotic ought to be designed to cater to that. The range of choices is endless and is determined by the disorder present and the wishes of the treating medical professional.