Effect of Orthotic Therapy on Claw Toe Loading

2004 ◽  
Vol 94 (3) ◽  
pp. 246-254 ◽  
Author(s):  
Penny J. Claisse ◽  
Jodi Binning ◽  
Julia Potter
Keyword(s):  
Pressure Measurement ◽  
Plantar Pressure ◽  
Metatarsal Head ◽  
Plantar Surface ◽  
Time Integral ◽  
Pressure Time ◽  
Second Metatarsal ◽  
Plantar Pressure Measurement ◽  
Access To Data ◽  
Toe Deformity

This study demonstrates the effect of orthotic therapy for toe deformity on toe and metatarsal head pressures using a new analysis method facilitated by an in-shoe pressure-measurement system’s ability to export detailed data. Plantar pressure–time integrals in 11 individuals (22 feet) with claw deformity of the lesser toes were measured with and without toe props. Differences in pressure–time integrals at every individual sensor unit were then calculated for the two conditions, and significance was tested using the paired t-test. Plantar surface charts with contours of equal significant pressure–time integral change showed significant reduction under 17 second toes (77%), 22 third toes (100%), 15 fourth toes (68%), 13 second metatarsal heads (59%), 16 third metatarsal heads (73%), and 16 fourth metatarsal heads (73%). All 22 feet showed increases under the prop in the area of the third toe sulcus. This innovative approach to plantar pressure analysis could improve access to data that show significant pressure–time integral changes and, therefore, could advance the clinical application of plantar pressure measurement. (J Am Podiatr Med Assoc 94(3): 246–254, 2004)

Effectiveness of the Fixtoe Device® in Plantar Pressure Reduction: A Preliminary Study.

2021 ◽  
Author(s):  
Maria Ruiz-Ramos ◽  
Ángel Manuel Orejana-García ◽  
Ignacio Vives-Merino ◽  
Carmen Bravo-Llatas ◽  
José Luis Lázaro-Martínez ◽  
...  
Keyword(s):  
Plantar Pressure ◽  
Metatarsophalangeal Joint ◽  
Metatarsal Head ◽  
Clinical Results ◽  
Cross Sectional ◽  
Time Integral ◽  
Pressure Time ◽  
Second Metatarsal ◽  
Maximal Pressure ◽  
Taping Technique

Abstract Background: Metatarsalgia is a common foot condition. The metatarsophalangeal stabilizing taping technique described by Yu et al. has shown good clinical results as a provisional treatment in propulsive metatarsalgia. 35 The Fixtoe Device®, a novel orthopedic device, intends to simulate stabilizing tape. However, to date, there is no evidence of its effectiveness.Methods: The aim of this study was to assess plantar pressure changes using the Fixtoe Device®, in comparison with the traditional method (stabilizing tape) in a young, healthy sample thorough a cross-sectional study. Maximal pressure (Kpa) and pressure-time integral (Kpa/s) in the second metatarsal head were measured in twenty-four healthy volunteers. Registers were taken in four different conditions: barefoot, traditional stabilizing tape, Fixtoe Device® without metatarsal pad, and Fixtoe Device® with metatarsal pad. Results: Mean second metatarsal head maximal pressure and mean pressure-time integral showed statistical difference among the four analyzed conditions (p < 0.0001 in both cases). The improvement in maximal pressure and pressure-time integral obtained in each intervention also showed significance (p < 0.0001 in both cases). Comparing the improvement of the Fixtoe Device® with and without metatarsal pad with that of tape condition showed a moderate to high and moderate effect size for both peak pressure and pressure-time integral reduction.Conclusions: The Fixtoe Device® reduces median maximal pressure and median pressure-time integral under the second metatarsal head in healthy young individuals. The Fixtoe Device® shows higher effectiveness than the traditional second metatarsophalangeal joint stabilizing taping technique. To our knowledge, this is the first investigation proving the effectiveness of the recently developed Fixtoe Device® in terms of plantar pressure modification, which leads the way to its use in clinics.

Normal values of plantar pressure measurements determined using the EMED-SF system

2000 ◽  
Vol 90 (6) ◽  
pp. 295-299 ◽  
Author(s):  
AR Bryant ◽  
P Tinley ◽  
KP Singer
Keyword(s):  
Clinical Practice ◽  
Pressure Measurement ◽  
Plantar Pressure ◽  
Normative Data ◽  
Measurement Technology ◽  
Normal Reference Range ◽  
Time Integral ◽  
Pressure Time ◽  
Mean Pressure ◽  
Plantar Pressure Measurement

Plantar pressure-measurement technology is being increasingly used by podiatric physicians and surgeons in both clinical practice and research. The authors present normal reference-range values for peak pressure, mean pressure, and pressure-time integral obtained from 30 healthy subjects using a two-step recording technique and the EMED-SF system, as background for proposed clinical trials. Normative data of this type are essential for clinical practice in the comparison of plantar pressure-measurement values of individual patients with those of normal, asymptomatic feet.

scholarly journals Multistep Measurement of Plantar Pressure Alterations Using Metatarsal Pads

1994 ◽  
Vol 15 (12) ◽  
pp. 654-660 ◽  
Author(s):  
An-Hsiung Chang ◽  
Ziad U. Abu-Faraj ◽  
Gerald F. Harris ◽  
Joe Nery ◽  
Michael J. Shereff
Keyword(s):  
Plantar Pressure ◽  
Metatarsal Head ◽  
Plantar Surface ◽  
Plantar Pressures ◽  
Quantitative Studies ◽  
Pressure Time ◽  
Second Metatarsal ◽  
Peak Pressures ◽  
Male Subjects ◽  
Multiple Step

Metatarsal pads are frequently prescribed for nonoperative management of metatarsalgia due to various etiologies. When appropriately placed, they are effective in reducing pressures under the metatarsal heads on the plantar surface of the foot. Despite the positive clinical reports that have been cited, there are no quantitative studies documenting the load redistribution effects of these pads during multiple step usage within the shoe environment. The objective of this study was to assess changes in plantar pressure metrics resulting from pad use. Ten normal adult male subjects were tested during a series of 400-step trials. Pressures were recorded from eight discrete plantar locations at the hindfoot, midfoot, and forefoot regions of the insole. Significant increases in peak pressures, contact durations, and pressure-time integrals were noted at the metatarsal shaft region with pad use ( P ≤ .05). Statistically significant changes in metric values were not seen at the other plantar locations, although metatarsal pad use resulted in mild decreases in mean peak pressures at the first and second metatarsal heads and slight increases laterally. Contact durations decreased at all metatarsal head locations, while pressure-time integrals decreased at the first, second, third, and fourth metatarsal heads. A slight increase in pressure-time integrals was seen at the fifth metatarsal head. The redistribution of plantar pressures tended to relate not only to the dimensions of the metatarsal pads, but also to foot size, anatomic foot configuration, and pad location. Knowledge of these parameters, along with careful control of pad dimensions and placement, allows use of the metatarsal pad as an effective orthotic device for redistributing forefoot plantar pressures.

Variability of plantar pressure data. A comparison of the two-step and midgait methods

1999 ◽  
Vol 89 (10) ◽  
pp. 495-501 ◽  
Author(s):  
TG McPoil ◽  
MW Cornwall ◽  
L Dupuis ◽  
M Cornwell
Keyword(s):  
Data Collection ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Pressure Data ◽  
Step Method ◽  
Plantar Surface ◽  
Time Integral ◽  
Risk Of Injury ◽  
Pressure Time ◽  
Reliable Representation

The number of trials required to obtain a reliable representation of the plantar pressure pattern is an important factor in the assessment of people with insensate feet or the use of plantar pressure data as a basis for fabrication of foot orthoses. Traditionally, the midgait method has been used for the collection of pressure data, but the large number of walking trials required by this method can increase the risk of injury to the plantar surface of the insensate foot. As a result, the two-step method of plantar pressure data collection has been advocated. The purpose of this investigation was to determine the degree of variability in regional plantar pressure measurements using the midgait and two-step methods of data collection. Plantar pressure data were collected from ten volunteers (five men and five women) between the ages of 20 and 35 years in 20 trials using both data-collection protocols. The results of the study indicate that three to five walking trials are needed to obtain reliable regional peak pressure and pressure-time integral values when the two-step data-collection protocol is used. Although either method can be used for pressure data collection, one method should be used consistently when repeated assessments are required.

Immediate Effects of Weight-Bearing Calf Stretching on Ankle Dorsiflexion Range of Motion and Plantar Pressure During Gait in Patients with Diabetes Mellitus

2021 ◽  
pp. 153473462110313
Author(s):  
Noriaki Maeshige ◽  
Mikiko Uemura ◽  
Yoshikazu Hirasawa ◽  
Yoshiyuki Yoshikawa ◽  
Maiki Moriguchi ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Weight Bearing ◽  
Ankle Dorsiflexion ◽  
Diabetic Foot Ulcers ◽  
Plantar Surface ◽  
Time Integral ◽  
Pressure Time ◽  
Patients With Diabetes

High plantar pressure is a risk factor for diabetic foot ulcers, and it is known that restriction of ankle dorsiflexion range of motion (ROM) causes high plantar pressure. Stretching is a non-invasive and general means to improve ROM; however, the effect of stretching on the ROM and plantar pressure has not been clarified in patients with diabetes mellitus. We aimed to study the effects of intermittent weight-bearing stretching on ankle dorsiflexion ROM and plantar pressure during gait in patients with diabetes mellitus. Seven patients with diabetes mellitus participated, and their triceps surae was stretched using weight-bearing stretching with a stretch board. Five minutes of stretching was performed 4 times with a rest interval of 30 s. Ankle dorsiflexion ROM was measured with the knee flexed and extended. Peak pressure and pressure-time integral during gait were measured and calculated for the rearfoot, midfoot, forefoot, and total plantar surface before and after stretching. Ankle dorsiflexion ROM with the knee extended or bent increased significantly after stretching ( P < .05). Peak pressure and the pressure-time integral decreased significantly, especially in the forefoot ( P < .01), and these also decreased significantly in the total plantar surface ( P < .05). The duration of foot-flat decreased after stretching ( P < .05). Weight-bearing stretching improved ankle dorsiflexion ROM and reduced plantar pressure during gait. These results suggest that weight-bearing calf stretching may be an effective means to prevent and treat diabetic foot ulcers.

Study on Piezoelectric CeramicType Insole Plantar Pressure Measurement System Based on Test Point

2011 ◽  
Vol 383-390 ◽  
pp. 5148-5153
Author(s):  
Ye Min Guo ◽  
Lan Mei Wang ◽  
Yun Yan Ge
Keyword(s):  
Measurement System ◽  
Pressure Measurement ◽  
Plantar Pressure ◽  
Piezoelectric Ceramic ◽  
Test Point ◽  
Pressure System ◽  
Scientific Methods ◽  
Design Requirements ◽  
Plantar Pressure Measurement ◽  
Pressure Measurement System

According to the requirement of measurement of plantar pressure, this thesis puts forward a plan to construct a new insole plantar pressure system based on multifunction data acquisition modular and Test Point. Then the hardware part and software part are designed and developed respectively. The piezoelectric ceramic type sensors are designed, manufactured and calibrated according to scientific methods. Meanwhile, the DAQ card is selected carefully. Of course, the software part is developed based on Test Point. A series of tests are performed in order to validate the function of the plantar pressure measurement system. The results satisfy the anticipated design requirements. At last, the problems and application trend of the plantar pressure system are predicted.

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