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Medial longitudinal arch

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https://www.readbyqxmd.com/read/29327550/-study-on-the-correlative-factors-of-the-pain-under-the-second-metatarsal-in-patients-with-hallux-valgus
#1
Jian-Gang Zuo, Hai-Wei Hu, Zhi-Cheng Sang, Jian-Min Wen, Wei-Dong Sun, Yong-Sheng Sun, Ting Cheng
OBJECTIVE: To analyze the correlation between the hallux valgus angle and arch X-ray parameters change, plantar pressure by measuring the X-ray indexes and foot-pressure indexes in patients with hallux valgus, as well as to study the main cause factors for the pain under the second metatarsal head. METHODS: A retrospective study of 254 patients(477 feet) treated in Wangjing Hospital from January 2012 to June 2013 was performed. The pain under the second metatarsal head and age distribution were recorded...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29284231/assessment-of-the-influence-of-jogging-on-the-shape-of-female-foot-arches
#2
Agata Maslon, Joanna Golec, Elzbieta Szczygiel, Dorota Czechowska, Boguslaw Golec
INTRODUCTION: Both walking and its faster, running, consist of cyclical subsequent phases of swing and support; however, they differ in their time proportions as well as magnitude of acting forces. There is a lack of studies concerning the long-term consequences of repeated jogging cycles on the function of feet and, above all, on their permanent impact on the shape of foot arches. OBJECTIVES: The objective of this study was to answer the question whether regular jogging changes the shape of the transverse and medial longitudinal arches of the feet...
December 23, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/29214919/effect-of-total-contact-orthosis-on-medial-longitudinal-arch-and-lower-extremities-in-flexible-flatfoot-subjects-during-walking
#3
Tulaya Prachgosin, Wipawan Leelasamran, Pruittikorn Smithmaitrie, Surapong Chatpun
BACKGROUND: Total-contact orthosis (TCO) is one kind of foot orthosis (FO) that is used to adjust biomechanics in flexible flatfoot. OBJECTIVE: To determine the effects of a TCO on the MLA moment, MLA deformation angle and lower limb biomechanics. STUDY DESIGN: Cross-sectional study. METHODS: Seven-flatfoot and thirteen-normal foot subjects were recruited by footprint and radiographs. The biomechanics of subjects with normal foot (NF), flatfoot with shoe only (FWOT) and flatfoot with TCO (FWT) were collected in a 3D motion analysis laboratory and force plates...
December 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/29202983/influence-of-tibialis-posterior-muscle-activation-on-foot-anatomy-under-axial-loading-a-biomechanical-ct-human-cadaveric-study
#4
Koen Dullaert, Jennifer E Hagen, Paul Simons, Florian Gras, Boyko Gueorguiev, R Geoff Richards, Kajetan Klos
BACKGROUND: Collapse of the medial longitudinal arch and subluxation of the subtalar joint are common occurrences in adult flatfoot deformity. Controversy exists about the role of the tibialis posterior (TP) tendon as first and/or essential lesion. Subtle changes in the foot configuration can occur under weight bearing. PURPOSE: This human cadaveric study is designed to investigate the effect that isolated actuation of the TP tendon has on the medial longitudinal arch and the hindfoot configuration under simulated weight bearing...
December 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29201146/time-to-revise-our-dialogue-how-flat-is-the-paediatric-flatfoot
#5
Stewart C Morrison, Juliet McClymont, Carina Price, Chris Nester
A recent systematic review of measures of foot development used the medial longitudinal arch profile as its primary indicator of development. A comparative analysis of existing studies was undertaken. This work confirmed changes with arch profile were age-dependent, although the age at which foot development ceased remains unknown. This work also highlighted the abundance of clinical measures used in existing research and outlined the challenges with drawing consensus from available data. There is a clear need to move this debate forward and, to do so, it is essential that scientific and clinical communities unite...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29182114/assessment-of-the-medial-longitudinal-arch-in-children-with-flexible-pes-planus-by-plantar-pressure-mapping
#6
E M Elmoatasem, M A Eid
INTRODUCTION: Plantar Pressure mapping was introduced as a new modality for assessment of the height of the medial longitudinal arch of the foot. Therefore, the aim of this study is to correlate the plantar pressure mapping readings of arch index contact force ratio (AICFR) in children with flexible pes planus with radiographic measurements and static plantar footprints in order to determine the reliability of pressure mapping as a modality for the assessment and follow up of the flat foot deformity...
December 2016: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29175714/the-effect-of-additional-activation-of-the-plantar-intrinsic-foot-muscles-on-foot-dynamics-during-gait
#7
Kazunori Okamura, Shusaku Kanai, Masaki Hasegawa, Akira Otsuka, Sadaaki Oki
BACKGROUND: The plantar intrinsic foot muscles (PIFMs) contribute to support the medial longitudinal arch. But the functional role of the PIFMs during dynamic activities is not clear. The purpose of this study was to examine the change in the foot dynamics during gait accompanied with the change in the PIFMs activity to determine the functional role of the PIFMs during gait. METHODS: Twenty healthy male subjects were randomly assigned to the electrical stimulation group (ESG) or control group (CG)...
August 18, 2017: Foot
https://www.readbyqxmd.com/read/29144991/finite-element-simulation-on-posterior-tibial-tendinopathy-load-transfer-alteration-and-implications-to-the-onset-of-pes-planus
#8
Duo Wai-Chi Wong, Yan Wang, Aaron Kam-Lun Leung, Ming Yang, Ming Zhang
BACKGROUND: Posterior tibial tendinopathy is a challenging foot condition resulting in pes planus, which is difficult to diagnose in the early stage. Prior to the deformity, abnormal internal load transfer and soft tissue attenuation are anticipated. The objective of this study was to investigate the internal load transfer and strain of the ligaments with posterior tibial tendinopathy, and the implications to pes planus and other deformities. METHODS: A three-dimensional finite element model of the foot and ankle was reconstructed from magnetic resonance images of a 28-year-old normal female...
November 3, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29134100/three-dimensional-innate-mobility-of-the-human-foot-bones-under-axial-loading-using-biplane-x-ray-fluoroscopy
#9
Kohta Ito, Koh Hosoda, Masahiro Shimizu, Shuhei Ikemoto, Takeo Nagura, Hiroyuki Seki, Masateru Kitashiro, Nobuaki Imanishi, Sadakazu Aiso, Masahiro Jinzaki, Naomichi Ogihara
The anatomical design of the human foot is considered to facilitate generation of bipedal walking. However, how the morphology and structure of the human foot actually contribute to generation of bipedal walking remains unclear. In the present study, we investigated the three-dimensional kinematics of the foot bones under a weight-bearing condition using cadaver specimens, to characterize the innate mobility of the human foot inherently prescribed in its morphology and structure. Five cadaver feet were axially loaded up to 588 N (60 kgf), and radiographic images were captured using a biplane X-ray fluoroscopy system...
October 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29028624/foot-pressure-pattern-hindfoot-deformities-and-their-associations-with-foot-pain-in-individuals-with-advanced-medial-knee-osteoarthritis
#10
Isao Saito, Kyoji Okada, Masahiko Wakasa, Hidekazu Abe, Akira Saito
This survey clarified foot pressure patterns and hindfoot deformities in individuals with advanced knee osteoarthritis (OA) and analyzed their associations with foot pain. Sixty-four individuals with unilateral knee OA who underwent total knee arthroplasty (TKA) were divided into the following groups: no foot pain (n=26; men:women, 4:22; mean age, 73.7 years), foot pain resolved after TKA (12; 2:10; 75.8), and foot pain remaining after TKA (26; 4:22; 74.7). Elderly individuals without pain or deformity in either knee (54; 10:44; 74...
January 2018: Gait & Posture
https://www.readbyqxmd.com/read/28871902/height-of-the-medial-longitudinal-arch-during-classical-ballet-steps
#11
Carolina Cabral de Mello Viero, Luíza Pillar Kessler, Camila Pinto, Kaanda Nabilla Souza Gontijo, Rodrigo Gomes da Rosa, Ana Kleiner, Leonardo Alexandre Peyré-Tartaruga, Alexandre Severo do Pinho, Aline de Souza Pagnussat
The purpose of this study was to evaluate the midfoot longitudinal arch height and correlate it with active hip external rotation (ER) in dancers during static postures and technical steps of classical ballet (i.e., first position, demi-plié, battement fondu à la seconde, pas jeté à la seconde, and grand jeté à la seconde). A 3D motion analysis system was used for kinematic analysis. The arch height was significantly reduced during the battement fondu à la seconde, pas jeté à la seconde, and grand jeté à la seconde when compared to standing (p = 0...
September 15, 2017: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/28861205/gait-analysis-of-symptomatic-flatfoot-in-children-an-observational-study
#12
Ha Yong Kim, Hyuck Soo Shin, Jun Hyuck Ko, Yong Han Cha, Jae Hoon Ahn, Jae Yeon Hwang
BACKGROUND: Flatfoot deformity is a lever arm disease that incurs kinetic inefficiency during gait. The purpose of this study was to measure the degree of kinetic inefficiency by comparing the gait analysis data of a flatfoot group with a normal control group. METHODS: The patient group consisted of 26 children (21 males and 5 females) with symptomatic flatfoot. They were examined with gait analysis between May 2005 and February 2014. Exclusion criteria were patients with secondary flatfoot caused by neuromuscular disorders, tarsal coalition, vertical talus, or others...
September 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28839522/the-thermoregulation-of-healthy-individuals-overweight-obese-and-diabetic-from-the-plantar-skin-thermogram-a-clue-to-predict-the-diabetic-foot
#13
REVIEW
Francisco-J Renero-C
Background: Thermoregulation is a complex autonomic process to keep or to dissipate heat in the human body. Methods: In this work, by means of the thermogram of the plantar skin, the thermoregulation of healthy individuals, overweight-obese, and diabetic is discussed. Results: The thermograms of the plantar skin, for the healthy individuals, are: (1) symmetrical, the temperature distribution of the right foot being a mirror image of that of the left foot ; (2) the thermograms of women, on average, are 3°C colder than those of the men; and (3) the temperature distributions decrease distally from the medial longitudinal arch...
2017: Diabetic Foot & Ankle
https://www.readbyqxmd.com/read/28814975/the-typically-developing-paediatric-foot-how-flat-should-it-be-a-systematic-review
#14
REVIEW
Hayley Uden, Rolf Scharfbillig, Ryan Causby
BACKGROUND: All typically developing children are born with flexible flat feet, progressively developing a medial longitudinal arch during the first decade of their lives. Whilst the child's foot is expected to be flat, there is currently no consensus as to how flat this foot should be. Furthermore, whilst feet are observed to decrease in flatness with increasing age, it is not known how flat they should be at each age increment. The objective of this systematic review is to define the postural characteristics of the 'typically' developing paediatric foot...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28779804/what-to-do-with-the-spring-ligament
#15
REVIEW
Brian Steginsky, Anand Vora
The spring ligament complex is an important static restraint of the medial longitudinal arch of the foot and its failure has been associated with progressive flatfoot deformity. Reconstruction of the spring ligament complex is most appropriate in stage II posterior tibial tendon dysfunction, before severe peritalar subluxation and rigid deformity develops. Although an understanding of the spring ligament complex and its contribution to medial arch stability has grown, there is no unanimously accepted surgical technique that has consistently demonstrated satisfactory outcomes...
September 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28764143/prevalence-of-flexible-flat-foot-in-adults-a-cross-sectional-study
#16
Ashok Aenumulapalli, Manoj Mohan Kulkarni, Achleshwar Ramnarain Gandotra
INTRODUCTION: Flat foot (pes planus) is a commonly observed disorder in clinical practice. The height of Medial Longitudinal Arch (MLA) determines the degree of pes planus. Majority of the previous studies on prevalence of flexible flat foot were done among children. AIM: The present study was undertaken to determine the prevalence of flexible flat foot among 18-21-year-old Indian adults using Navicular Drop Test (NDT) which is regarded as reliable and valid method to characterise MLA...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28708428/reliability-and-correlation-of-static-and-dynamic-foot-arch-measurement-in-a-healthy-pediatric-population
#17
Timo Scholz, Astrid Zech, Karl Wegscheider, Susanne Lezius, Klaus-Michael Braumann, Susanne Sehner, Karsten Hollander
BACKGROUND: Measurement of the medial longitudinal foot arch in children is a controversial topic, as there are many different methods without a definite standard procedure. The purpose of this study was to 1) investigate intraday and interrater reliability regarding dynamic arch index and static arch height, 2) explore the correlation between both arch indices, and 3) examine the variation of the medial longitudinal arch at two different times of the day. METHODS: Eighty-six children (mean ± SD age, 8...
September 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28631280/age-and-sex-associated-morphological-variations-of-metatarsal-torsional-patterns-in-humans
#18
Masateru Kitashiro, Naomichi Ogihara, Tetsuro Kokubo, Morio Matsumoto, Masaya Nakamura, Takeo Nagura
It has been demonstrated that the torsional patterns of the metatarsal heads are associated with the presence or absence of the medial longitudinal arch in hominoid feet. The relatively untwisted second metatarsal is unique in humans, but that of the African apes is much more inverted, suggesting that the torsion of the second metatarsal might represent the overall shape and flatness of the foot. Some clinical studies have recently argued that the onset of foot pathologies such as hallux valgus might be related to the torsional pattern of the metatarsals...
June 20, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28626309/does-the-weakening-of-intrinsic-foot-muscles-cause-the-decrease-of-medial-longitudinal-arch-height
#19
Kazunori Okamura, Shusaku Kanai, Sadaaki Oki, Satoshi Tanaka, Naohisa Hirata, Yoshiaki Sakamura, Norikatsu Idemoto, Hiroki Wada, Akira Otsuka
[Purpose] There are no reliable evidences that the weakening of intrinsic foot muscles causes the decrease of the medial longitudinal arch (MLA) height. The purpose of this study was to confirm whether the fatigue of intrinsic foot muscles decrease the MLA height during standing and gait using 3D motion analysis system. [Subjects and Methods] Twenty healthy male subjects participated in this study. Foot kinematics was measured using an Oxford Foot Model before and after fatigue-inducing exercises of the abductor hallucis and flexor hallucis brevis muscles...
June 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28623061/comparison-of-extraosseous-talotarsal-stabilization-implants-in-a-stage-ii-adult-acquired-flatfoot-model-a-finite-element-analysis
#20
Jian Xu, Xin Ma, Daping Wang, Wei Lu, Weimin Zhu, Kan Ouyang, Haifeng Liu, Hao Li, Luoyong Jiang
Subtalar arthroereisis has been proved to be an efficient method for correcting flexible adult flatfoot. However, the optimal sinus tarsi implant is still debated and yet to be determined. In the present study, we compared the biomechanical effects of type I and II sinus tarsi implants in stage II adult-acquired flatfoot deformity (AAFD). First, a finite element model of stage II AAFD was established in which virtual surgery of subtalar arthroereisis was simulated. The indexes of plantar stress distribution, peak von Mises of the medial and lateral columns, strain of the medial ligaments and plantar fascia, arch height, talo-first metatarsal angle, calcaneus pitch angle, talonavicular coverage angle, and hindfoot valgus angle were all compared and analyzed...
September 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
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