Shoe insert

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A pair of orthopedic insoles Plantar Fasciitis insoles.jpg
A pair of orthopedic insoles
A pair of regular leather inner soles Leather inner soles - upper and underside.jpg
A pair of regular leather inner soles

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 treatment, arch support, foot and joint pain relief from arthritis, overuse, injuries, leg length discrepancy, and other causes such as orthopedic correction and athletic performance.

Contents

Medical use of foot orthoses has been criticized as lacking evidence of benefit, and practice is very inconsistent: reputed podiatrists prescribe completely different orthoses for a single patient. [1] [2] [3] Further, effect of a given design of orthosis varies significantly by patient, [4] and standard practice to personalize prescription is not available. [5] However, evidence is mixed: patients often report at least short-term improvements in comfort, and other studies have found effectiveness. [6]

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. [7] [8]

Traditionally they were created from plaster casts 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. [9]

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 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

Further reading

Related Research Articles

<span class="mw-page-title-main">Flat feet</span> Foot arch deformity

Flat feet, also called pes planus or fallen arches, is a postural deformity in which the arches of the foot collapse, with the entire sole of the foot coming into complete or near-complete contact with the ground. Sometimes children are born with flat feet (congenital). There is a functional relationship between the structure of the arch of the foot and the biomechanics of the lower leg. The arch provides an elastic, springy connection between the forefoot and the hind foot so that a majority of the forces incurred during weight bearing on the foot can be dissipated before the force reaches the long bones of the leg and thigh.

<span class="mw-page-title-main">Metatarsophalangeal joint sprain</span> Medical condition

A metatarsophalangeal joint sprain is an injury to the connective tissue between the foot and a toe. When the big toe is involved, it is known as "turf toe".

<span class="mw-page-title-main">Unequal leg length</span> Medical condition

Unequal leg length is often a disabling condition where the legs are either different lengths (structurally), or appear to be different lengths, because of misalignment (functionally).

<span class="mw-page-title-main">Orthotist</span> Healthcare specialist who creates braces

An orthotist is a healthcare professional who specializes in the provision of orthoses. An orthotist has an overall responsibly of orthotics treatment, who can supervise and mentor the practice of other personnel. They are clinicians trained to assess the needs of the user, prescribe treatment, determine the precise technical specifications of orthotic devices, take measurements and image of body segments, prepare model of the evaluation, fit devices and evaluate treatment outcome. In the United States, orthotists work by prescription from a licensed healthcare provider. Physical therapists are not legally authorized to prescribe orthoses in the U.S. In the U.K., orthotists will often accept open referrals for orthotic assessment without a specific prescription from doctors or other healthcare professionals.

Foot and ankle surgery is a sub-specialty of orthopedics and podiatry that deals with the treatment, diagnosis and prevention of disorders of the foot and ankle. Orthopaedic surgeons are medically qualified, having been through four years of college, followed by 4 years of medical school or osteopathic medical school to obtain an M.D. or D.O. followed by specialist training as a resident in orthopaedics, and only then do they sub-specialise in foot and ankle surgery. Training for a podiatric foot and ankle surgeon consists of four years of college, four years of podiatric medical school (D.P.M.), 3–4 years of a surgical residency and an optional 1 year fellowship.

<span class="mw-page-title-main">Pedobarography</span> Study of pressure fields between foot and a supporting surface

Pedobarography is the study of pressure fields acting between the plantar surface of the foot and a supporting surface. Used most often for biomechanical analysis of gait and posture, pedobarography is employed in a wide range of applications including sports biomechanics and gait biometrics. The term 'pedobarography' is derived from the Latin: pedes, referring to the foot, and the Greek: baros meaning 'weight' and also 'pressure'.

<span class="mw-page-title-main">Diabetic shoe</span> Shoes intended to reduce the risk of skin breakdown in diabetics

Diabetic shoes are specially designed shoes, or shoe inserts, intended to reduce the risk of skin breakdown in diabetics with existing foot disease and relieve pressure to prevent diabetic foot ulcers.

<span class="mw-page-title-main">Pronation of the foot</span> Type of foot movement

Pronation is a natural movement of the foot that occurs during foot landing while running or walking. Composed of three cardinal plane components: subtalar eversion, ankle dorsiflexion, and forefoot abduction, these three distinct motions of the foot occur simultaneously during the pronation phase. Pronation is a normal, desirable, and necessary component of the gait cycle. Pronation is the first half of the stance phase, whereas supination starts the propulsive phase as the heel begins to lift off the ground.

Pet orthotics refers to the use of orthotics for pets. Orthotics is an allied health care field concerned with the design, development, fitting, and manufacture of orthoses. Orthoses, sometimes called braces or splints, are devices that support or correct musculoskeletal deformities and/or abnormalities of the body.

<span class="mw-page-title-main">Eneslow</span> NYC-based specialty custom-made shoe company

Eneslow is a chain of shoe stores in New York City founded by the Low family in 1909. They are America’s largest pedorthic retailer. In addition to its retail stores, Eneslow also manages the Eneslow Pedorthic Institute, a pedorthic education and training program.

<span class="mw-page-title-main">Orthotics</span> Medical specialty that focuses on the design and application of orthoses

Orthotics is a medical specialty that focuses on the design and application of orthoses, sometimes known as braces or calipers. An orthosis is "an externally applied device used to influence the structural and functional characteristics of the neuromuscular and skeletal systems." Orthotists are professionals who specialize in designing these braces.

<span class="mw-page-title-main">Locomotor effects of shoes</span>

Locomotor effects of shoes are the way in which the physical characteristics or components of shoes influence the locomotion neuromechanics of a person. Depending on the characteristics of the shoes, the effects are various, ranging from alteration in balance and posture, muscle activity of different muscles as measured by electromyography (EMG), and the impact force. There are many different types of shoes that exist, such as running, walking, loafers, high heels, sandals, slippers, work boots, dress shoes, and many more. However, a typical shoe will be composed of an insole, midsole, outsole, and heels, if any. In an unshod condition, where one is without any shoes, the locomotor effects are primarily observed in the heel strike patterns and resulting impact forces generated on the ground.

<span class="mw-page-title-main">Robert S. Schwartz</span>

Robert (Bob) S. Schwartz, C.Ped., is president and CEO of Eneslow Pedorthic Enterprises, Inc. which operates Eneslow Shoes and Orthotics, Eneslow Pedorthic Institute (EPI), and Eneslow.com. Eneslow and Mr. Schwartz are recognized leaders in footwear, footcare, and in their New York communities.

A DAFO is a brand name for some lower extremity braces that provide thin, flexible, external support to the foot, ankle and/or lower leg. They have the particularity to fit firmly the ankle and correct concisely the foot deformity within special pressure points. It is stated to help in improving mobility and stability of the ankle joint on CP patients, evidence shows that immediate gross motor function improved with the use of DAFOs as well. Designed to help a patient maintain a functional position, a DAFO can improve stability for successful standing and walking.

<span class="mw-page-title-main">Orthopedic boot</span> Medical device

A variety of orthopedic boots are used for the treatment of injuries of the foot or ankle. Along with orthopedic casts, leg braces, splints and orthotics, they can immobilize and shift weight bearing to help treat injuries to the foot area.

Neuromechanics of orthoses refers to how the human body interacts with orthoses. Millions of people in the U.S. suffer from stroke, multiple sclerosis, postpolio, spinal cord injuries, or various other ailments that benefit from the use of orthoses. Insofar as active orthoses and powered exoskeletons are concerned, the technology to build these devices is improving rapidly, but little research has been done on the human side of these human-machine interfaces.

<span class="mw-page-title-main">Diabetic foot ulcer</span> Medical condition

Diabetic foot ulcer is a breakdown of the skin and sometimes deeper tissues of the foot that leads to sore formation. It may occur due to a variety of mechanisms. It is thought to occur due to abnormal pressure or mechanical stress chronically applied to the foot, usually with concomitant predisposing conditions such as peripheral sensory neuropathy, peripheral motor neuropathy, autonomic neuropathy or peripheral arterial disease. It is a major complication of diabetes mellitus, and it is a type of diabetic foot disease. Secondary complications to the ulcer, such as infection of the skin or subcutaneous tissue, bone infection, gangrene or sepsis are possible, often leading to amputation.

Total contact casting (TCC) is a specially designed cast designed to take weight off of the foot (off-loading) in patients with diabetic foot ulcers (DFUs). Reducing pressure on the wound by taking weight off the foot has proven to be very effective in DFU treatment. DFUs are a major factor leading to lower leg amputations among the diabetic population in the US with 85% of amputations in diabetics being preceded by a DFU. Furthermore, the five-year post-amputation mortality rate among diabetics is estimated at 45% for those with neuropathic DFUs.

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 used to create custom inserts that tend to be firm, flexible, and relatively soft.

Nachiappan Chockalingam, professionally known as Nachi Chockalingam is a British scientist, academic practitioner and expert in Clinical Biomechanics. He is a professor at Staffordshire University and a Fellow of the Institute of Physics and Engineering in Medicine and has been appointed to a panel of experts for the Research Excellence Framework. He was elected as a Fellow of the International Society of Biomechanics in 2023. Between 2016 and 2022, he has contributed to the NIHR Research for Patient Benefit Panel and serves in multiple other review panels of global grant awarding bodies including the EPSRC, MRC and the European Commission. He contributed to development of podiatric biomechanics in the UK and played a pivotal role in the establishment of the journals such as the Footwear Science and is on the editorial panel for a number of scientific and clinical journals.

References

  1. Chevalier, T.L. and Chockalingam, N., 2012. Effects of foot orthoses: how important is the practitioner?. Gait & posture, 35(3), pp.383-388.https://doi.org/10.1016/j.gaitpost.2011.10.356
  2. Nigg, Benno M. (2011). Biomechanics of Sports Shoes.
  3. Kolata, Gina (January 17, 2011). "Close Look at Orthotics Raises a Welter of Doubts". The New York Times.
  4. Chevalier, T.L. and Chockalingam, N., 2011. Foot orthoses: a review focusing on kinematics. Journal of the American Podiatric Medical Association, 101(4), pp.341-348.https://doi.org/10.7547/1010341
  5. Nigg, Benno M.; Stergiou, PRO; Cole, Gerald; Stefanyshyn, Darren; m??Ndermann, Anne; Humble, Neil (2003). "Effect of Shoe Inserts on Kinematics, Center of Pressure, and Leg Joint Moments during Running" (PDF). Medicine & Science in Sports & Exercise. 35 (2): 314–319. doi:10.1249/01.MSS.0000048828.02268.79. PMID   12569222.
  6. Gross, M. L.; Davlin, L. B.; Ebanski, P. M. (1991). "Effectiveness of orthotic shoe inserts in the long-distance runner". American Journal of Sports Medicine. 19 (4): 409–412. doi:10.1177/036354659101900416. PMID   1897659. S2CID   23550947.
  7. Ingraham, Paul (December 22, 2014), Orthotics Review: A consumer's guide to the science and controversies of orthotics, special shoes, and other (allegedly) corrective foot devices
  8. Telfer S.; Gibson KS; Hennessy K; Steultjens MP; Woodburn J. (2012). "Computer-aided design of customized foot orthoses: reproducibility and effect of method used to obtain foot shape". Arch Phys Med Rehabil. 93 (5): 863–70. doi:10.1016/j.apmr.2011.12.019. PMID   22541310.
  9. אביזרים אורטופדיים