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A removable shoe insert, otherwise known as a foot orthosis, insole or inner sole, accomplishes many purposes, including daily wear comfort, height enhancement,
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/ref> Recently, several companies have developed digital foot scanners that use specialized software to scan a patient's foot and create a "virtual" cast. These scans are made by having the patient place the foot onto a specialized flat image scanner that uses light and software to capture and create a 3D model. This 3D model is then electronically submitted (along with a prescription) to an orthotics lab, where it is used to program a
A removable shoe insert, otherwise known as a foot orthosis, insole or inner sole, accomplishes many purposes, including daily wear comfort, height enhancement, plantar fasciitis
Plantar fasciitis or plantar heel pain is a disorder of the plantar fascia, which is the connective tissue that supports the Arches of the foot, arch of the foot. It results in pain in the heel and Sole (foot), bottom of the foot that is usuall ...
treatment, arch
An arch is a curved vertical structure spanning an open space underneath it. Arches may support the load above them, or they may perform a purely decorative role. As a decorative element, the arch dates back to the 4th millennium BC, but stru ...
support, foot and joint
A joint or articulation (or articular surface) is the connection made between bones, ossicles, or other hard structures in the body which link an animal's skeletal system into a functional whole.Saladin, Ken. Anatomy & Physiology. 7th ed. McGraw- ...
pain relief from arthritis
Arthritis is a general medical term used to describe a disorder that affects joints. Symptoms generally include joint pain and stiffness. Other symptoms may include redness, warmth, Joint effusion, swelling, and decreased range of motion of ...
, overuse, injuries, leg length discrepancy, and other causes such as orthopedic
Orthopedic surgery or orthopedics ( alternative spelling orthopaedics) is the branch of surgery concerned with conditions involving the musculoskeletal system. Orthopedic surgeons use both surgical and nonsurgical means to treat musculoskeletal ...
correction and athletic performance.
Medical use of foot orthoses has been criticized as lacking evidence of benefit, and practice is very inconsistent: reputed podiatrist
A podiatrist ( ) is a medical professional devoted to the treatment of disorders of the foot, ankle, and related structures of the leg. The term originated in North America but has now become the accepted term in the English-speaking world for ...
s prescribe completely different orthoses for a single patient. Further, effect of a given design of orthosis varies significantly by patient, and standard practice to personalize prescription is not available. However, evidence is mixed: patients often report at least short-term improvements in comfort, and other studies have found effectiveness.
Fitting patients
There are three standard methods for fitting patients: plaster casts, foam box impressions, or three-dimensional computer imaging. None are very accurate: all produce proper fit under 80% of the time. Traditionally they were created fromplaster casts
A plaster cast is a copy made in plaster of another 3-dimensional form. The original from which the cast is taken may be a sculpture, building, a face, a pregnant belly, a fossil or other remains such as fresh or fossilised footprints – ...
made from the patient's foot. These casts were made by wrapping dipped plaster or fiberglass strips around the foot to capture the form, then letting it dry and harden. Once the cast was hardened, the doctor would carefully remove it from the patient's foot and ship it, along with a prescription, to an orthotics lab which would use the negative of the cast to create an orthopedic insert./ref> Recently, several companies have developed digital foot scanners that use specialized software to scan a patient's foot and create a "virtual" cast. These scans are made by having the patient place the foot onto a specialized flat image scanner that uses light and software to capture and create a 3D model. This 3D model is then electronically submitted (along with a prescription) to an orthotics lab, where it is used to program a
CNC machine
Computer numerical control (CNC) or CNC machining is the automated control of machine tools by a computer. It is an evolution of numerical control (NC), where machine tools are directly managed by data storage media such as punched cards or ...
that will ultimately produce the orthopedic insert.
Diabetic shoes
Diabetic shoes, sometimes referred to as extra depth, therapeutic shoes or Sugar Shoes, are specially designed shoes, intended to reduce the risk of skin breakdown in diabetics with co-existing foot disease.See also
*Comparison of orthotics
Podiatrists mold custom orthotics to address patients' foot malformations. There are multiple means developed to create the basis for the molds, including plaster casts, foam box impressions, and three-dimensional computer imaging. The molds are us ...
* Orthotics
Orthotics () is a medical specialty that focuses on the design and application of orthoses, sometimes known as braces, calipers, or splints. An is "an externally applied device used to influence the structural and functional characteristics of ...
* Podiatry
Podiatry ( ), also know as podiatric medicine and surgery ( ), is a branch of medicine devoted to the study, diagnosis, and treatment of disorders of the foot, ankle and lower limb. The healthcare professional is known as a podiatrist. The US ...
Further reading
* * * *References
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