Radiologic Signs of Unilateral Pes Planus

Chadha, Harbinder S.; Pomeroy, Gregory; Manoli, Arthur

doi:10.1177/107110079701800915

Cited by 56 publications

(32 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1,18,31,32 Subjects with excessive pronation often have a flattening or loss of the MLA. 5 The pressure under mask 3 (medial midfoot) might not have changed because the tape may not have altered the arch significantly; however, the rest of the results suggest that the tape might have improved the rigidity of the foot.…”

Section: Discussionmentioning

confidence: 56%

The Effect of Low-Dye Taping on Plantar Pressures, During Gait, in Subjects With Navicular Drop Exceeding 10 mm

Lange¹,

Chipchase²,

Evans³

2004

J Orthop Sports Phys Ther

View full text Add to dashboard Cite

Study Design: A preintervention and postintervention, repeated-measures experimental design. Objectives: To investigate the immediate effect of low-Dye taping on peak and mean plantar pressures during gait in subjects with navicular drop exceeding 10 mm. Background: Low-Dye taping is commonly used to support the longitudinal and transverse arches of the foot in an attempt to reduce the effects of symptoms associated with excessive pronation. Plantar pressure measurement has been used as an indirect indicator of pronation during gait. Method and Measures:The right foot of 60 subjects was tested using the Emed-AT system to obtain plantar pressure values. Subjects performed 6 barefoot walks over the Emed pressure platform while taped and a further 6 walks while untaped. Plantar pressures were recorded. Each footprint obtained was divided into 10 sections or 'masks.' Average peak and mean plantar pressure values (N/cm 2 ) were calculated for both taped and untaped walks for each mask. Results: Paired t tests demonstrated significant changes in peak plantar pressure in 8 of the 10 areas of the foot and significant changes in mean plantar pressure in 9 of the 10 areas of the foot. Low-Dye taping significantly decreased pressure under the heel and the medial and middle forefoot, while increasing pressure under the lateral midfoot and under the toes. A significant decrease in mean plantar pressure was observed under the lateral forefoot, while no significant difference was demonstrated in peak plantar pressure under this area. The area under the medial midfoot demonstrated no significant change in either peak or mean pressure. Conclusions: Low-Dye taping significantly altered peak and mean plantar pressure values in subjects with navicular drop exceeding 10 mm. In particular, peak and mean plantar pressure increased under the lateral midfoot and under the toes, and decreased under the heel and forefoot, suggesting that a decrease in the amount of pronation occurred.

show abstract

Section: Discussionmentioning

confidence: 56%

The Effect of Low-Dye Taping on Plantar Pressures, During Gait, in Subjects With Navicular Drop Exceeding 10 mm

Lange¹,

Chipchase²,

Evans³

2004

J Orthop Sports Phys Ther

View full text Add to dashboard Cite

show abstract

“…The 6 patients modeled in this study were typical of Stage IIb AAFD sufferers. Radiographically, their joint angles differed from normal as did their distance measures, and all in the direction of increased AAFD deformity. Conversely, the patient measures were more comparable to AAFD values presented in the literature.…”

Section: Discussionmentioning

confidence: 82%

“…11,13,15 Distances: d6: talonavicular uncoverage distance. 45 VALIDATION OF PATIENT-SPECIFIC FLATFOOT MODELS such that the phalanges were not captured for all of patients and were thus excluded from our models. We believe this to be an acceptable approximation given the limited toe loading observed during quiet stance.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Validation of a population of patient‐specific adult acquired flatfoot deformity models

Spratley

Matheis

Hayes

et al. 2013

Journal Orthopaedic Research

View full text Add to dashboard Cite

Adult acquired flatfoot deformity (AAFD) is a degenerative disease resulting in malalignment of the mid-and hindfoot secondary to posterior tibial tendon dysfunction and increasing implication of ligament pathologies. Despite the complex 3D nature of AAFD, 2D radiographs are still employed to diagnose and stage the disease. Computer modeling techniques allow for accurate 3D recreations of musculoskeletal systems for the investigation of biomechanical factors contributing to disease. Following Institutional Review Board approval, the lower limbs of six diagnosed AAFD sufferers were imaged with MRI, photographs, and X-ray. Next, a radiologist graded the MRI attenuation of eight soft-tissues implicated in AAFD. Six patient-specific rigid-body models were then created and loaded according to patient weight, graded soft-tissues, and extrinsic muscles. Model function was validated using clinically relevant kinematic measures in three planes. Agreement varied depending on the measure, with average absolute deviations of <7˚for angles and <4 mm for distances. Additionally, the clinically favored AP talonavicular coverage angle, ML talo-1st metatarsal angle, and ML 1st cuneiform height showed strong correlations of R 2 ¼ 0.63, 0.75, and 0.85, respectively. Thus, computer modeling offers a promising methodology for the non-invasive investigation of in vivo kinematic behavior in pathologic feet and, once validated, may further be used to investigate biomechanical parameters that are difficult to measure clinically. ß

show abstract

“…Flat feet, medically termed pes planus, are caused by loss of the medial portion of the longitudinal plantar plate, which is described below [11] (see Sect. 3).…”

Section: Development Of the Footmentioning

confidence: 99%

Excessive Weight Bearing Compromises Foot Structure and Function Across the Lifespan

Steele

Riddiford‐Harland

Mickle

2014

The Mechanobiology of Obesity and Related Diseases

View full text Add to dashboard Cite

The base of support for the musculoskeletal system during most physical activities is the feet. Feet are highly unique and flexible structures, which are required to perform extremely diverse functions, particularly during weightbearing tasks. Although feet that are structurally sound can usually perform tasks of daily living with ease, deviations from normal foot structure or alignment can compromise foot function and, in turn, cause discomfort or pain. Extensive research has confirmed that obesity negatively affects foot structure and function. Obese individuals have been found to have broader, thicker and flatter feet; generate significantly higher dynamic plantar pressures; and alter their foot mechanics during walking relative to their non-overweight counterparts. The need for overweight and obese individuals to bear excess body mass has also been associated with the development of musculoskeletal pain and discomfort in the feet, which can be severe enough to limit these individuals from participating in activities of daily living, work and recreation. As this can perpetuate the cycle of obesity, the compromised foot structure of obese individuals is deemed a major health issue. In this chapter, we review the effects of bearing excessive body mass on foot structure and function across a lifespan and, where possible, highlight the impact of this excessive weight bearing on the ability of individuals to perform activities of daily living. Based on the studies reviewed we recommend that evidence-based interventions be designed to reduce excess fat mass in overweight and obese individuals, focussing on non-weight bearing activities to relieve loading of their foot structures and, in turn, improve the quality of life of these individuals.

show abstract

Radiologic Signs of Unilateral Pes Planus

Cited by 56 publications

References 2 publications

The Effect of Low-Dye Taping on Plantar Pressures, During Gait, in Subjects With Navicular Drop Exceeding 10 mm

The Effect of Low-Dye Taping on Plantar Pressures, During Gait, in Subjects With Navicular Drop Exceeding 10 mm

Validation of a population of patient‐specific adult acquired flatfoot deformity models

Excessive Weight Bearing Compromises Foot Structure and Function Across the Lifespan

Contact Info

Product

Resources

About