Pressure Plate Analysis of the PreClinical Clubfoot and Primus Metatarsus Supinatus Foot Deformities (original) (raw)
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Pressure Plate Analysis of the Medial Column Foot Insole
Pressure plate analysis is used to collect surface area (sA) and media pressure (mP) readings on 17 Primus Metatarsus Supinatus Patients. All 17 patients are fitted with medial column foot insoles. Two sets of surface area (X) and media pressure (Y) readings are recorded on each patients: A baseline set before treatment and a second set after treatment. The observed changes in surface area and media pressure are statistically correlated. The results: (1) The probability that these patterns are randomized events (based on chance alone) is exceeding small (p >. 01) (2) There is a high level of confidence that postural tonicity shifts towards homeostasis when insole therapy is effective. Summation: From a clinical point of view, these observed changes in surface area and medial pressure readings may prove useful in prognosticating the appropriateness of insole therapy.
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Clinical Uses of In-Shoe Pressure Analysis in Podiatric Sports Medicine
Journal of the American Podiatric Medical Association, 2007
Athletic injuries of the foot and lower extremity are commonly treated with custom foot orthoses. These devices usually provide immediate relief of the athlete’s pain and dysfunction. Occasionally, however, they do not help, or even increase the patient’s discomfort. We discuss a method of using in-shoe pressure-measurement systems to analyze the athletic patient’s foot and lower-extremity function before and after treatment with custom foot orthoses, with a focus on sagittal plane biomechanics. Case histories are presented of athletes whose gait pathologies were identified and treated successfully using an in-shoe pressure-measurement system. (J Am Podiatr Med Assoc 97(1): 49–58, 2007)
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Clinical Biomechanics, 2004
To study the effects of custom-made insoles on plantar pressures and load redistribution in neuropathic diabetic patients with foot deformity. Cross-sectional. Although custom-made insoles are commonly prescribed to diabetic patients, little quantitative data on their mechanical action exists. Regional in-shoe peak pressures and force-time integrals were measured during walking in the feet of 20 neuropathic diabetic subjects with foot deformity who wore flat or custom-made insoles. Twenty-one feet with elevated risk for ulceration at the first metatarsal head were analysed. Load redistribution resulting from custom-made insoles was assessed using a new load-transfer algorithm. Custom-made insoles significantly reduced peak pressures and force-time integrals in the heel and first metatarsal head regions; pressures and integrals were significantly increased in the medial midfoot region compared with flat insoles. Custom-made insoles successfully reduced pressures in and integrals at the first metatarsal head in 7/21 feet, were moderately successful in another seven, but failed in the remaining seven. Load transfer was greatest from the lateral heel to the medial midfoot regions. Custom-made insoles were more effective than flat insoles in off-loading the first metatarsal head region, but with considerable variability between individuals. Most off-loading occurred in the heel (not a region typically at risk). The load transfer algorithm effectively analyses custom-made-insole action. Because similar insole modifications apparently exert different effects in different patients, a comprehensive evaluation of custom designs using in-shoe pressure measurement should ideally be conducted before dispensing insoles to diabetic patients with neuropathy and foot deformity.
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Contralateral Peak Plantar Pressures with a Postoperative Boot
Journal of the American Podiatric Medical Association, 2011
Background: Frequent use of walking boots in podiatric medicine often elicits patient complaints and sequelae from the imposed limb-length discrepancy. This study was designed primarily to determine whether peak plantar pressures are decreased in the contralateral foot when a moderately worn athletic shoe is worn opposite a high-calf walking boot and, if so, secondarily to determine whether a specialized surgical shoe worn on the contralateral foot can also effectively reduce this pressure. The pressure reductions were then compared to determine whether significantly greater plantar pressure reduction was provided by either the athletic shoe or the surgical shoe. Methods: Participants without a foot abnormality walked on a treadmill in four footwear combinations: barefoot bilaterally, high-calf rocker-bottom sole (HCRB) walking boot/ barefoot, HCRB walking boot/athletic shoe, and HCRB walking boot/modified walking boot shoe. Measurements were taken with the participants wearing sock...
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