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https://www.readbyqxmd.com/read/29658814/combined-spring-and-deltoid-ligament-repair-in-adult-acquired-flatfoot
#1
Caio Nery, André Vitor Kerber C Lemos, Fernando Raduan, Nacime Salomão B Mansur, Daniel Baumfeld
BACKGROUND: Adult-acquired flatfoot deformity (AAFD) is usually due to a combination of mechanical failure of the osteoligamentous complex that maintains the medial longitudinal arch of the foot and attenuation or complete tear of the posterior tibial tendon. Magnetic resonance imaging studies in patients with flatfoot deformities have reported the posterior tibial tendon to be pathologic in up to 100% of patients, the spring ligament in up to 87%, and the deltoid ligament in 33%. Many studies in the literature describe reconstruction of the spring ligament or the deltoid ligament associated with AAFD, but there is no study in which both (spring and deltoid) ligaments are reconstructed at the same time...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29657452/impact-of-various-foot-arches-on-dynamic-balance-and-speed-performance-in-collegiate-short-distance-runners-a-cross-sectional-comparative-study
#2
Selvaraj Sudhakar, S Veena Kirthika, K Padmanabhan, G Mohan Kumar, C V Senthil Nathan, R Gopika, Asir John Samuel
Objective: To compare the impact of foot arches on dynamic balance and speed performance. Materials and methods: 30 collegiate male short distance runners were divided into three groups based on foot arches, high, neutral and low. Balance and speed performance were estimated based on scores of star excursion balance test (SEBT), 40 yard dash test and vertical jump test (VJT). Results: Significant improved scores (p < 0.001) were noted in SEBT, 40 yard dash test and VJT...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29655650/surgical-treatment-of-lisfranc-injury-with-plantar-plate-approach
#3
Deepal Dalal, Christian Curry, Ryan Carter, Colin Zdenek, Nicholas W Todd, Shannon M Rush, Richard Jensen
Midfoot injuries are the second most common athletic foot injury documented in the published data. High-energy Lisfranc dislocations are commonly seen secondary to traumatic etiologies and disrupt the strong midfoot ligaments supporting the arch. These injuries require immediate surgical intervention to prevent serious complications such as compartment syndrome and amputation. The present case series reports a new Lapidus plate system used in 3 patients who underwent arthrodesis procedures for Lisfranc joint dislocation...
April 11, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29619845/contribution-of-medial-cuneiform-osteotomy-to-correction-of-longitudinal-arch-collapse-in-stage-iib-adult-acquired-flatfoot-deformity
#4
Grace C Kunas, Huong T Do, Amiethab Aiyer, Jonathan T Deland, Scott J Ellis
Background Residual forefoot supination after correcting the hindfoot in stage IIb adult-acquired flatfoot deformity can be addressed with a dorsal opening wedge medial cuneiform (Cotton) osteotomy. The amount of correction is generally judged clinically, and there currently are no preoperative guides that can predict the size of graft needed. The aim of this study was to evaluate the correlation between patient and operative factors and the correction achieved with the Cotton osteotomy. METHODS: Seventy-nine feet in 74 patients undergoing Cotton osteotomy as part of flatfoot reconstruction were reviewed retrospectively...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29609159/net-ankle-quasi-stiffness-is-influenced-by-walking-speed-but-not-age-for-older-adult-women
#5
John D Collins, Elisa S Arch, Jeremy R Crenshaw, Kathie A Bernhardt, Sundeep Khosla, Shreyasee Amin, Kenton R Kaufman
BACKGROUND: Insufficient plantar flexor resistance due to plantar flexor weakness, an impairment common in patient populations, causes substantial gait deficits. The bending stiffness of passive-dynamic ankle-foot orthoses (PD-AFOs) has the capacity to replace lost plantar flexor resistance. Many patients who are prescribed PD-AFOs are older adults. While PD-AFO bending stiffness should be customized for patients, a method to objectively prescribe this stiffness does not exist. Quantifying natural plantar flexor resistance during non-pathological gait could provide a reference value for objectively prescribing PD-AFO bending stiffness...
March 26, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29589970/imaging-of-the-tibionavicular-ligament-and-its-potential-role-in-adult-acquired-flatfoot-deformity
#6
Neal Ormsby, Gillian Jackson, Paul Evans, Simon Platt
BACKGROUND: The spring ligament is an important medial arch stabilizer. However, when disrupted, it does not cause planovalgus deformity until the foot is cyclically loaded. We propose that the tibionavicular (TN) ligament plays an important role. However, this ligament is not imaged in routine magnetic resonance imaging (MRI) sequences. METHODS: A prospective case-control study using a novel MRI sequence to image the TN ligament in 20 normal feet creating a baseline appearance of the ligament...
March 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29573666/foot-posture-is-associated-with-plantar-pressure-during-gait-a-comparison-of-normal-planus-and-cavus-feet
#7
Andrew K Buldt, Saeed Forghany, Karl B Landorf, Pazit Levinger, George S Murley, Hylton B Menz
BACKGROUND: Variations in foot posture, such as pes planus (low medial longitudinal arch) or pes cavus (high medial longitudinal arch) are associated with some lower limb injuries. However, the mechanism that links foot posture to injury is not clear. Research question The aim of this study was to compare plantar pressure between healthy individuals with normal, planus or cavus feet. METHODS: Ninety-two healthy volunteers (aged 18 to 45) were classified as either normal (n = 35), pes planus (n = 31) or pes cavus (n = 26) based on the Foot Posture Index, Arch Index and normalised navicular height truncated...
March 5, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29551943/repair-of-bone-defect-of-the-lateral-forefoot-by-double-segment-triangular-fibula-flap-with-vascular-pedicle-a-case-report
#8
Ruifu Yang, Mingwu Zhou, Chaofeng Xing, Shimin Li, Li Song, Jia Chen, Yingjie Xiong, Kai Zhang
Objective: To expound the clinical effect of a new operation by transplanting double segment triangular fibula flap with vascular pedicle to repair the forefoot with lateral bone defect, and to study how to improve the operation method in the following stage. Methods: The inclusion criteria: More than 2 phalangeal and metatarsal bones defects of the lateral forefoot, widespread skin and soft tissue defects on pelma and dorsal foot, and destruction of the anterior aspect of foot arch, which seriously affects the foot function...
December 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29547032/characteristics-of-plantar-pressures-and-related-pain-profiles-in-elite-sprinters-and-recreational-runners
#9
Tong-Hsien Chow, Yih-Shyuan Chen, Jia-Chang Wang
BACKGROUND: Plantar pressure measurement is effective for assessing plantar loading and can be applied to evaluating foot performance. We sought to explore the characteristics of plantar pressures in elite sprinters and recreational runners during static standing and walking. METHODS: Arch index (AI) values, regional plantar pressure distributions (PPDs), and footprint characteristics were examined in 80 elite sprinters and 90 recreational runners using an optical plantar pressure measurement system...
January 2018: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29541162/three-dimensional-quantitative-analysis-of-healthy-foot-shape-a-proof-of-concept-study
#10
Kristina Stanković, Brian G Booth, Femke Danckaers, Fien Burg, Philippe Vermaelen, Saartje Duerinck, Jan Sijbers, Toon Huysmans
Background: Foot morphology has received increasing attention from both biomechanics researches and footwear manufacturers. Usually, the morphology of the foot is quantified by 2D footprints. However, footprint quantification ignores the foot's vertical dimension and hence, does not allow accurate quantification of complex 3D foot shape. Methods: The shape variation of healthy 3D feet in a population of 31 adult women and 31 adult men who live in Belgium was studied using geometric morphometric methods...
2018: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29524798/the-relationship-between-foot-posture-and-plantar-pressure-during-walking-in-adults-a-systematic-review
#11
REVIEW
Andrew K Buldt, Jamie J Allan, Karl B Landorf, Hylton B Menz
BACKGROUND: Foot posture is a risk factor for some lower limb injuries, however the underlying mechanism is not well understood. Plantar pressure analysis is one technique to investigate the interaction between foot posture and biomechanical function of the lower limb. RESEARCH QUESTION: The aim of this review was to investigate the relationship between foot posture and plantar pressure during walking. METHODS: A systematic database search was conducted using MEDLINE, CINAHL, SPORTDiscus and Embase to identify studies that have assessed the relationship between foot posture and plantar pressure during walking...
February 23, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29487321/foot-strength-and-stiffness-are-related-to-footwear-use-in-a-comparison-of-minimally-vs-conventionally-shod-populations
#12
Nicholas B Holowka, Ian J Wallace, Daniel E Lieberman
The longitudinal arch (LA) helps stiffen the foot during walking, but many people in developed countries suffer from flat foot, a condition characterized by reduced LA stiffness that can impair gait. Studies have found this condition is rare in people who are habitually barefoot or wear minimal shoes compared to people who wear conventional modern shoes, but the basis for this difference remains unknown. Here we test the hypothesis that the use of shoes with features that restrict foot motion (e.g. arch supports, toe boxes) is associated with weaker foot muscles and reduced foot stiffness...
February 27, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29482786/surgical-management-navicular-and-cuboid-fractures
#13
REVIEW
J Randolph Clements, François Dijour, Wesley Leong
The tarsal navicular is a critical component of the foot's medial longitudinal arch. Injuries to the navicular have significant long-term functional consequences. In addition to stress fractures, acute injuries to the navicular include acute avulsion, tuberosity, and body fractures. Nonoperative treatment is the mainstay for avulsion injuries and nondisplaced body fractures. Open reduction and internal fixation is performed to achieve anatomic reduction in the other situations. Common complications following operative intervention include pain, stiffness, post-traumatic arthritis, avascular necrosis, nonunion, and hindfoot deformity...
April 2018: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/29447180/experimental-research-on-the-structural-instability-mechanism-and-the-effect-of-multi-echelon-support-of-deep-roadways-in-a-kilometre-deep-well
#14
Rui Peng, Xiangrui Meng, Guangming Zhao, Yingming Li, Jianming Zhu
We study the structural instability mechanism and effect of a multi-echelon support in very-deep roadways. We conduct a scale model test for analysing the structural failure mechanism and the effect of multi-echelon support of roadways under high horizontal stress. Mechanical bearing structures are classified according to their secondary stress distribution and the strength degradation of the surrounding rock after roadway excavation. A new method is proposed by partitioning the mechanical bearing structure of the surrounding rock into weak, key and main coupling bearing stratums...
2018: PloS One
https://www.readbyqxmd.com/read/29413786/arch-index-and-running-biomechanics-in-children-aged-10-14-years
#15
Karsten Hollander, Julie Stebbins, Inke Marie Albertsen, Daniel Hamacher, Kornelia Babin, Claudia Hacke, Astrid Zech
BACKGROUND: While altered foot arch characteristics (high or low) are frequently assumed to influence lower limb biomechanics and are suspected to be a contributing factor for injuries, the association between arch characteristics and lower limb running biomechanics in children is unclear. RESEARCH QUESTION: Therefore, the aim of this study was to investigate the relationship between a dynamically measured arch index and running biomechanics in healthy children...
February 1, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29382479/-does-a-physical-education-lesson-affect-the-foot-morphology-in-school-aged-children
#16
Laura Martín-Casado, Christian Barquín
BACKGROUND: To analyze the changes in foot morphology in school-age children, after a Physical Education lesson. METHODS: A total of 10 school-age children (5 girls and 5 boys) were recruited with a mean age of 9.3 ± 0.5 years that voluntary participated in this study. Measurements of both feet were obtained using a 3D foot digitizer model IFU-S-01 (Japan) in two different moments, before and after a physical education lesson (per-exercise and post-exercise), where different activities involving displacements, jumps and landings were performed...
September 2017: Boletín Médico del Hospital Infantil de México
https://www.readbyqxmd.com/read/29381043/foot-and-ankle-conditions-midfoot-and-forefoot-conditions
#17
Katherine M Edenfield, Charlie Michaudet, Guy W Nicolette, Peter J Carek
The midfoot and forefoot are the regions of the foot distal to the talus and calcaneus and are critical to weight bearing and movement. They help support the arch of the foot, provide shock absorption, and convert vertically oriented forces into horizontal forward and propulsive movement. A spectrum of acute, subacute, and chronic conditions in these regions can cause pain and decreased function. A thorough history and physical examination should include foot and leg biomechanics, alignment, and posture in addition to palpation of painful areas...
February 2018: FP Essentials
https://www.readbyqxmd.com/read/29381041/foot-and-ankle-conditions-pes-planus
#18
Charlie Michaudet
Pes planus or pes planovalgus (ie, flatfoot) is a common condition among young children and also is encountered in adults. In children, congenital pes planus typically resolves with age as the foot musculature strengthens. Flexible pes planus is defined as a normal arch during non-weight-bearing activity or tiptoeing, with a flattening arch on standing. In rigid pes planus, the arch remains stiff and collapsed with or without weight bearing. Patients with rigid pes planus should be referred for subspecialist treatment...
February 2018: FP Essentials
https://www.readbyqxmd.com/read/29354578/relationships-between-self-awareness-and-clinical-diagnostic-findings-of-abnormal-foot-arch-height-in-koreans
#19
Youngsuk Son, Hyo Jeong Kang, Yun-Mi Song, Ji Hye Hwang
Objective: To see how people think about their own feet, and evaluate whether there are correlations among self-awareness of the participants and clinical examination findings. Methods: Adult twins and their families who participated in the Healthy Twin study from May 2008 to April 2010 were recruited. Participants were asked whether they thought their feet were normal, flat, or cavus. The lateral talometatarsal angles were measured on foot X-rays to determine the foot arch height...
December 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29354574/biomechanical-parameters-in-plantar-fasciitis-measured-by-gait-analysis-system-with-pressure-sensor
#20
Seung Don Yoo, Hee Sang Kim, Jong Ha Lee, Dong Hwan Yun, Dong Hwan Kim, Jinmann Chon, Seung Ah Lee, Yoo Jin Han, Yun Soo Soh, Yong Kim, Seonyoung Han, Woojin Lee, Young Rok Han
Objective: To investigate the differences in biomechanical parameters measured by gait analysis systems between healthy subjects and subjects with plantar fasciitis (PF), and to compare biomechanical parameters between 'normal, barefooted' gait and arch building gait in the participants. Methods: The researchers evaluated 15 subjects (30 feet) with bilateral foot pain and 15 subjects (15 feet) with unilateral foot pain who had a clinical diagnosis of PF. Additionally, 17 subjects (34 feet) who had no heel pain were recruited...
December 2017: Annals of Rehabilitation Medicine
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