keyword
MENU ▼
Read by QxMD icon Read
search

forefoot

keyword
https://www.readbyqxmd.com/read/29141879/lower-limb-biomechanical-analysis-during-an-unanticipated-step-on-a-bump-reveals-specific-adaptations-of-walking-on-uneven-terrains
#1
Fausto A Panizzolo, Sangjun Lee, Taira Miyatake, Denise Martineli Rossi, Christopher Siviy, Jozefien Speeckaert, Ignacio Galiana, Conor J Walsh
Although it is clear that walking over different irregular terrain is associated with altered biomechanics, there is little understanding of how we quickly adapt to unexpected variations in terrain. This study aims to investigate which adaptive strategies humans adopt when performing an unanticipated step on an irregular surface, specifically a small bump. Nine healthy male participants walked at their preferred walking speed along a straight walkway during five conditions: four involving unanticipated bumps of two different heights, and one level walking condition...
November 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29141022/trabecular-bone-in-the-calcaneus-of-runners
#2
Andrew Best, Brigitte Holt, Karen Troy, Joseph Hamill
Trabecular bone of the human calcaneus is subjected to extreme repetitive forces during endurance running and should adapt in response to this strain. To assess possible bone functional adaptation in the posterior region of the calcaneus, we recruited forefoot-striking runners (n = 6), rearfoot-striking runners (n = 6), and non-runners (n = 6), all males aged 20-41 for this institutionally approved study. Foot strike pattern was confirmed for each runner using a motion capture system. We obtained high resolution peripheral computed tomography scans of the posterior calcaneus for both runners and non-runners...
2017: PloS One
https://www.readbyqxmd.com/read/29139570/distribution-of-segmental-foot-kinematics-in-patients-with-degenerative-joint-disease-of-the-ankle
#3
Karl Canseco, Karen M Kruger, Jessica M Fritz, Katherine A Konop, Sergey Tarima, Richard M Marks, Gerald F Harris
Degenerative joint disease (DJD) of the ankle is a debilitating chronic disease associated with severe pain and dysfunction resulting in antalgic gait alteration. Little information is available about segmental foot and ankle motion distribution during gait in ankle osteoarthritis. The aim of the current study was to dynamically characterize segmental foot and ankle kinematics of patients with severe ankle arthrosis requiring total ankle replacement. This was a prospective study involving 36 (19 M, 17 F) adult patients with a clinical diagnosis of ankle arthrosis ("DJD" group) and 36 (23 M, 13 F) healthy subjects ("Control" group)...
November 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29133920/energy-neutral-the-human-foot-and-ankle-subsections-combine-to-produce-near-zero-net-mechanical-work-during-walking
#4
Kota Z Takahashi, Kate Worster, Dustin A Bruening
The human foot and ankle system is equipped with structures that can produce mechanical work through elastic (e.g., Achilles tendon, plantar fascia) or viscoelastic (e.g., heel pad) mechanisms, or by active muscle contractions. Yet, quantifying the work distribution among various subsections of the foot and ankle can be difficult, in large part due to a lack of objective methods for partitioning the forces acting underneath the stance foot. In this study, we deconstructed the mechanical work production during barefoot walking in a segment-by-segment manner (hallux, forefoot, hindfoot, and shank)...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29132254/reverse-flow-intrinsic-fasciocutaneous-island-flaps-in-foot-reconstruction
#5
Sujin Bahk, GyeongHyeon Doh, Ki Yong Hong, SooA Lim, SuRak Eo
Reconstruction of soft tissue defects in the foot remains a challenge due to its specialized tissue for weightbearing and ambulation. Considering the principle of replacing "like with like," adjacent soft tissues would be a best option for a donor site. Although several kinds of reverse-flow island flaps for the lower leg have been well described, intrinsic foot reverse flow flaps have been rarely reported. We describe 3 kinds of reverse-flow intrinsic fasciocutaneous flaps (RIFFs) for foot reconstruction. From September 2012 to August 2015, a retrospective study was done on case notes of all patients who had a RIFF for coverage of soft tissue defects within the foot following trauma or tumor ablation...
November 1, 2017: International Journal of Lower Extremity Wounds
https://www.readbyqxmd.com/read/29126046/study-on-the-foot-shape-characteristics-of-the-elderly-in-china
#6
Xiang Dong Luo, Chao-Hua Xue, Yan Li
BACKGROUND: With aging, the feet of the elderly above 60 years old in China present degenerative changes, deformities, and diseases, which significantly affect their daily activities. OBJECTIVES: The authors aimed to study the morphological characteristics of the feet and identify the foot type according to size (length and width) and defect characteristics of elderly feet in China. METHODS: A convenient sample of 1000 subjects above 60 years old was recruited mainly in the regions of Shanghai, Shaanxi, Henan, Hebei, and Sichuan in China...
April 24, 2017: Foot
https://www.readbyqxmd.com/read/29126044/medial-forefoot-fillet-flap-for-primary-closure-of-transmetatarsal-amputation-a-series-of-four-cases
#7
Eliezer Sidon, Shai Shemesh, Yoav Rosenthal, Snir Heller, Steven Velkes, Alon Burg
Amputation of the forefoot is a salvage procedure for several forefoot acute or chronic infection. A good, sensate and durable skin cover is important for quicker and better rehabilitation. The use of filleted flaps (or "spare parts technique") has been published in the past as a creative technique. The purpose of this article is to introduce a reproducible, pre-planned, technique that requires less creativity for the use of the "spare parts". The authors describe a case series of 4 patients with deep infection and osteomyelitis of the forefoot, without involvement of the medial skin that underwent two staged procedure for transmetatarsal amputation with medial forefoot fillet flap...
June 29, 2017: Foot
https://www.readbyqxmd.com/read/29126041/the-effect-of-eliminating-leg-length-difference-on-plantar-foot-pressure-distribution-in-patients-wearing-forefoot-offloading-shoe
#8
Ezequiel Palmanovich, Moshe Ayalon, David Ben Sira, Meir Nyska, Iftach Hetsroni
BACKGROUND AND PURPOSE: Elevated heel construction offloads the forefoot after surgery. However, side-to-side height difference alters limb kinetics, whereas leg-length equalizing-sole at non-operated side may have beneficial effects on foot loading. The purpose of this study was to characterize leg-length equalizing sole effect on bilateral plantar pressures when using heel-lift forefoot-offloading shoe. MATERIALS AND METHODS: Twenty men were tested walking. Plantar peak pressures (PP) and pressure-time integrals (PTI) in the forefoot-offloading shoe and in contralateral running shoe were compared between two conditions: one with- and the other without leg-length equalizing sole elevation at the running shoe...
October 24, 2017: Foot
https://www.readbyqxmd.com/read/29100250/gait-retraining-from-rearfoot-strike-to-forefoot-strike-does-not-change-running-economy
#9
Jenevieve Lynn Roper, Deborah Doerfler, Len Kravitz, Janet S Dufek, Christine Mermier
Gait retraining is a method for management of patellofemoral pain, which is a common ailment among recreational runners. The present study investigated the effects of gait retraining from rearfoot strike to forefoot strike on running economy, heart rate, and respiratory exchange ratio immediately post-retraining and one-month post-retraining in recreational runners with patellofemoral pain. Knee pain was also measured. Sixteen participants (n=16) were randomly placed in the control (n=8) or experimental (n=8) group...
November 3, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29092989/an-evolution-in-the-management-of-fractures-of-the-ankle-safety-and-efficacy-of-posteromedial-approach-for-haraguchi-type-2-posterior-malleolar-fractures
#10
N Bali, I Aktselis, A Ramasamy, S Mitchell, P Fenton
AIMS: There has been an evolution recently in the management of unstable fractures of the ankle with a trend towards direct fixation of a posterior malleolar fragment. Within these fractures, Haraguchi type 2 fractures extend medially and often cannot be fixed using a standard posterolateral approach. Our aim was to describe the posteromedial approach to address these fractures and to assess its efficacy and safety. PATIENTS AND METHODS: We performed a review of 15 patients with a Haraguchi type 2 posterior malleolar fracture which was fixed using a posteromedial approach...
November 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/29081861/role-of-surgery-in-management-of-osteo-articular-tuberculosis-of-the-foot-and-ankle
#11
REVIEW
Mandeep Singh Dhillon, Vikas Agashe, Sampat Dumbre Patil
BACKGROUND: Tuberculosis of the foot and ankle still remains to be a significant problem, especially in the developing countries, and with an increase in incidence in immunosuppressed patients. Treatment is mainly medical using multidrug chemotherapy; surgical interventions range from biopsy, synovectomy and debridement, to joint preserving procedures like distraction in early cases, and arthrodesis of hindfoot joints and the ankle in advanced disease with joint destruction. Surgical Options: All procedures should be done after initiating appropriate medical management...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29079241/ankle-fracture-associated-with-rupture-of-the-achilles-tendon-case-report-and-review-of-the-literature
#12
Mohammed Elmajee, Asan Rafee, Tolupe Williams
Solitary ankle fracture or Achilles Tendon (AT) rupture might not be an uncommon injury. However, concomitant ipsilateral ankle fracture with AT rupture is rare. The present report discusses this rare combination. A 30-year-old female had fallen while rock climbing and sustained a closed fracture of the medial malleolus with an ipsilateral complete AT rupture. Most of the reported cases had similar patterns, not only in terms of history, but also in terms of a similar fracture pattern. This rare combination of orthopedic injuries tends to occur when an abrupt excessive force is applied to the forefoot, with subsequent ankle hyperextension or hindfoot inversion...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29079232/foot-pressure-changes-before-and-after-ankle-fusion-a-pedobarograph-study
#13
Gabriel Ayonmigbesimi Akra, Akinwande Olusanya Adedapo
We performed a case-control study with the purpose of establishing the pressure patterns in the soles of the feet of patients with ankle osteoarthritis, determining whether the pattern changed after treating the arthritis with ankle joint fusion (arthrodesis), and whether the change is significant. We also studied the benefits of ankle fusion with respect to the Short-Form 36-item Health Survey and the American Orthopaedic Foot and Ankle Society Ankle-Hindfoot scale. The study included 18 participants (9 in the study group and 9 in the control group) to reach statistical significance with a 95% confidence interval (CI)...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29077489/surgical-treatment-of-zone-1-fifth-metatarsal-base-fractures-using-the-locking-compression-plate-distal-ulna-hook-plate
#14
Jingjing Zhao, Bin Yu, Ming Xie, Ruokun Huang, Kai Xiao
BACKGROUND: The distal ulna hook plate was recently introduced for the treatment of fifth metatarsal base fractures, but no special articles have reported the surgical results of the plate fixation of displaced or comminuted fifth metatarsal base fractures in zone 1, which are the most common forefoot fractures. METHODS: Twenty-one patients with Lawrence classification zone 1 fifth metatarsal base fractures with extra-articular displacement greater than 2 mm (n = 13) and intra-articular displacement fractures (n = 8) were included in the study...
September 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29076759/internal-fixation-of-displaced-intra-articular-fractures-of-the-hallux-through-a-dorsomedial-approach-a-technical-tip
#15
Danilo Ryuko Cândido Nishikawa, Fernando Aires Duarte, Cesar de Cesar Netto, Augusto César Monteiro, Rômulo Ballarin Albino, Fabio Corrêa Paiva Fonseca
Phalangeal fractures of the toes represent common injuries of the forefoot. In the hallux, most fractures occur at the distal phalanx and frequently result from a direct crushing type of injury. Intra-articular fractures of the hallux are usually treated nonoperatively, except when the fragments are displaced and the joint is incongruent. Displaced fractures treated nonoperatively can result in degenerative arthritis of the interphalangeal joint, causing pain and range of motion limitation, hindering gait and weightbearing...
October 1, 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29066982/foot-placement-characteristics-and-plantar-pressure-distribution-patterns-during-stepping-on-ground-in-neonates
#16
F Sylos-Labini, S Magnani, G Cappellini, V La Scaleia, A Fabiano, S Picone, P Paolillo, A Di Paolo, F Lacquaniti, Y Ivanenko
Stepping on ground can be evoked in human neonates, though it is rather irregular and stereotyped heel-to-toe roll-over pattern is lacking. Such investigations can provide insights into the role of contact- or load-related proprioceptive feedback during early development of locomotion. However, the detailed characteristics of foot placements and their association with motor patterns are still incompletely documented. We elicited stepping in 33 neonates supported on a table. Unilateral limb kinematics, bilateral plantar pressure distribution and EMG activity from up to 11 ipsilateral leg muscles were recorded...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29065674/two-segment-foot-model-for-the-biomechanical-analysis-of-squat
#17
E Panero, L Gastaldi, W Rapp
Squat exercise is acquiring interest in many fields, due to its benefits in improving health and its biomechanical similarities to a wide range of sport motions and the recruitment of many body segments in a single maneuver. Several researches had examined considerable biomechanical aspects of lower limbs during squat, but not without limitations. The main goal of this study focuses on the analysis of the foot contribution during a partial body weight squat, using a two-segment foot model that considers separately the forefoot and the hindfoot...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29057609/the-efficacy-of-removable-devices-to-offload-and-heal-neuropathic-plantar-forefoot-ulcers-in-people-with-diabetes-a-single-blinded-multicentre-randomised-controlled-trial
#18
Sicco A Bus, Jaap J van Netten, Anke Ir Kottink, Erik A Manning, Maximilian Spraul, Arend-Jan Woittiez, Jeff G van Baal
Non-removable offloading is the 'gold standard' treatment for neuropathic diabetic plantar forefoot ulcers. However, removable offloading is the common 'standard of care'. We compared three removable offloading devices for ulcer healing efficacy. In this multicentre, randomised controlled trial, 60 persons with neuropathic diabetic plantar forefoot ulcers were randomly assigned to wear a custom-made knee-high cast [BTCC (bivalved TCC)], custom-made ankle-high cast shoe or a prefabricated ankle-high forefoot-offloading shoe (FOS)...
October 23, 2017: International Wound Journal
https://www.readbyqxmd.com/read/29053097/-amputation-of-the-forefoot-in-a-14-year-old-boy-due-to-infiltrative-glomus-tumour
#19
Hoda Khorasani, Claus L Jensen, Christian T Bonde
Glomus tumours are rare dermal tumours, which very seldom can be seen viscerally. The majority is benign small tumours of the skin. Malignancy has been reported in very few cases worldwide. The diagnosis is made clinically supported by MRI-scans and biopsy of the lesion. We present a case story of a 14-year-old boy, who had an infiltrative glomus tumour of the foot. The tumour met the criteria for malignancy and was operated radically by amputation of the forefoot. The post-operative period was uncomplicated and no metastases were observed neither clinically nor by PET-CT scans...
October 16, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/29047294/deep-transverse-metatarsal-ligament-transection-in-morton-s-neuroma-excision-a-cadaveric-study-examining-effects-on-metatarsal-alignment
#20
Nathaniel Preston, Daniel Peterson, Jamey Allen, Jill S Kawalec, Jeffrey Whitaker
BACKGROUND: In the dorsal incisional approach for Morton's neuroma, it is required to transect the deep transverse metatarsal ligament (DTML) that lies in the interspace between the third and fourth metatarsal heads. The purpose of this study was to evaluate the relationship between transection of the DTML in the third intermetatarsal space and the metatarsal alignment. METHODS: Nine human cadaveric lower extremity limbs were used for this study. Each limb was mounted to the MTS 858 Mini Bionix biomechanical test system and loaded to 120% of the donor's documented body weight at a rate of 15 lbf/s, in order to simulate peak weightbearing ground reactive forces on the forefoot...
October 1, 2017: Foot & Ankle Specialist
keyword
keyword
28391
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"