Related Experiment Video
Updated: Jan 23, 2026
13:11
Using Flexible Gold-Titanium Reaction Cells to Simulate Pressure-Dependent Microbial Activity in the Context of Subsurface Biomining
Published on: October 5, 2019
7.1K
Plantar pressures in symptomatic and asymptomatic flexible flatfeet: how do they differ?
Victoria Blackwood1, Kelly A Jeans1, Rusty L Hartman1
1Scottish Rite for Children, Dallas, Texas.
Journal of Pediatric Orthopedics. Part B
|January 22, 2026
Summary
Adolescents with symptomatic flexible flatfoot show distinct pedobarographic differences, particularly in the medial midfoot, compared to asymptomatic cases. However, these differences did not predict surgical versus non-surgical outcomes.
Area of Science:
- Orthopedics
- Biomechanics
- Pediatrics
Background:
- Flexible flatfoot in adolescents often lacks correlation between clinical/radiographic measures and pain.
- The reasons for symptomatic versus asymptomatic flexible flatfoot remain unclear.
- Pedobarography may offer insights into biomechanical differences.
Purpose of the Study:
- To compare pedobarographic parameters between symptomatic flexible flatfoot (SFF) and asymptomatic flatfeet (AFF) in adolescents.
- To identify biomechanical factors contributing to symptomatic flexible flatfoot.
- To evaluate differences between operative and nonoperative management in SFF.
Main Methods:
- Retrospective review of a Foot and Ankle registry.
- Plantar pressure analysis (contact area, contact time, mean force) in SFF and AFF groups.
- Assessment of patient-reported outcomes using the Oxford Ankle Foot Measure (OxAFM).
Main Results:
- Symptomatic flexible flatfoot (SFF) demonstrated significant differences in all pedobarographic variables compared to asymptomatic flatfeet (AFF) and controls, especially in the medial midfoot.
- No significant pedobarographic differences were observed between SFF patients who underwent surgery versus those managed nonoperatively.
- The surgical group reported poorer outcomes on the Oxford Ankle Foot Measure (OxAFM) for school/play and emotional wellbeing.
Conclusions:
- Adolescents with symptomatic flexible flatfoot exhibit a medial shift in weight distribution compared to asymptomatic individuals.
- Pedobarographic findings did not differentiate between surgical and conservative treatment success in symptomatic flexible flatfoot.
- Further research is needed to understand the etiology of symptomatic flexible flatfoot and guide treatment decisions.
More Related Videos
Related Concept Videos
02:34Vapor Pressure
40.0K
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
40.0K
02:57Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer
42.7K
Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
42.7K
03:02Constant Pressure Calorimetry
97.4K
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
97.4K
03:28Vapor Pressure Lowering
30.7K
The equilibrium vapor pressure of a liquid is the pressure exerted by its gaseous phase when vaporization and condensation are occurring at equal rates:
30.7K
00:52¹H NMR of Conformationally Flexible Molecules: Temporal Resolution
1.3K
At room temperature, the chair conformer of cyclohexane undergoes rapid ring flipping between two equivalent chair conformers at a rate of approximately 105 times per second. These two chair conformers are in equilibrium. The rapid ring flipping results in the interconversion of the axial proton to an equatorial proton and an equatorial to the axial proton. Such interconversions are too rapid and cannot be detected on the NMR timescale. Hence, the NMR spectrometer cannot distinguish between the...
1.3K
02:40Osmosis and Osmotic Pressure of Solutions
46.2K
A number of natural and synthetic materials exhibit selective permeation, meaning that only molecules or ions of a certain size, shape, polarity, charge, and so forth, are capable of passing through (permeating) the material. Biological cell membranes provide elegant examples of selective permeation in nature, while dialysis tubing used to remove metabolic wastes from blood is a more simplistic technological example. Regardless of how they may be fabricated, these materials are generally...
46.2K