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https://www.readbyqxmd.com/read/29138591/anatomical-etiology-of-pseudo-sciatica-from-superior-cluneal-nerve-entrapment-a-laboratory-investigation
#1
Tomoyuki Konno, Yoichi Aota, Hiroshi Kuniya, Tomoyuki Saito, Ning Qu, Shogo Hayashi, Shinichi Kawata, Masahiro Itoh
Objective: The superior cluneal nerve (SCN) may become entrapped where it pierces the thoracolumbar fascia over the iliac crest; this can cause low back pain (LBP) and referred pain radiating into the posterior thigh, calf, and occasionally the foot, producing the condition known as "pseudo-sciatica." Because the SCN was thought to be a cutaneous branch of the lumbar dorsal rami, originating from the dorsal roots of L1-L3, previous anatomical studies failed to explain why SCN causes "pseudo-sciatica"...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/29122317/sonographic-and-anatomic-description-of-the-subtalar-joint
#2
Peter Mandl, David Bong, Peter V Balint, Hilde Berner Hammer, Maribel Miguel, Esperanza Naredo, Lene Terslev, Ingrid Möller
Our study provides a detailed anatomic and sonographic description of the subtalar joint, a single joint that, anatomically, is divided into the anterior subtalar joint (ASTJ) and the posterior subtalar joint (PSTJ). Cadaver specimens of the ankle and foot were examined in detail by ultrasound (US), and the subtalar joints of all the specimens were injected with colored latex of a contrasting color under US guidance. Compatible with other studies, examination of the sections revealed lack of communication between the ASTJ and the PSTJ and communication between the PSTJ and the posterior recess of the tibiotalar joint...
November 6, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29098722/the-structure-of-the-cutaneous-pedal-glands-in-the-banded-snail-cepaea-hortensis-m%C3%A3-ller-1774
#3
Janek von Byern, Norbert Cyran, Waltraud Klepal, Livia Rudoll, Johannes Suppan, Sophie Greistorfer
Although gastropods have been crawling through the ocean and on the land for 60 million years, we still know very little about the sticky mucus produced in their foot. Most research has been focused on marine species in particular and, to a lesser extent, on the well-known terrestrial species Arion vulgaris and Cornu aspersum. Within this study, we aim to characterize the foot anatomy of a smaller representative of the family Helicidae, the banded snail Cepaea hortensis. We are particularly interested in the microanatomy of the foot glands, their position, and the histochemical nature of their secretory content...
November 3, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29098684/comparative-hindlimb-myology-of-foot-propelled-swimming-birds
#4
Glenna T Clifton, Jennifer A Carr, Andrew A Biewener
Several groups of birds have convergently evolved the ability to swim using their feet despite facing trade-offs with walking. However, swimming relative to terrestrial performance varies across these groups. Highly specialized divers, such as loons and grebes, excel at swimming underwater but struggle to stand on land, whereas species that primarily swim on the water surface, such as Mallards, retain the ability to move terrestrially. The identification of skeletal features associated with a swimming style and conserved across independent groups suggests that the hindlimb of foot-propelled swimming birds has adapted to suit the physical challenges of producing propulsive forces underwater...
November 3, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29078820/understanding-the-anatomy-and-biomechanics-of-ankle-tendons
#5
REVIEW
Christopher P Chiodo
The tendons that cross the ankle are complex and sophisticated structures that enable standing and forward propulsion and the ability to accommodate uneven ground. Understanding the biomechanics and local anatomy of these tendons is essential to the treatment of disorders of the foot and ankle, whether it be in formulating an appropriate physical therapy regimen or planning a reconstructive surgical procedure.
December 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29077492/motor-evoked-potentials-of-the-abductor-hallucis-muscle-and-their-relationship-with-foot-arch-functional-anatomy
#6
Tyrone Mayorga, Erato Giokas, Anaida Abagyan, Dhaval Patel, Yasmin Sarraf, Michael Paula, Eileen Chusid, Anthony D'antoni, Fortunato Battaglia
BACKGROUND: The present study aimed to investigate the correlation between abductor hallucis (AH) muscle motor evoked potential (MEP) amplitude and foot arch anatomy. METHODS: Twelve healthy individuals underwent foot arch measurement using a digital photographic technique and measurements of cortical excitability using transcranial magnetic stimulation applied on the cortical representation area of the right AH muscle. Truncated foot length and dorsal height were then measured and used to create the arch height index (AHI)...
September 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29024511/the-relationship-between-linear-osteological-and-radiographic-measurements-of-the-human-calcaneus-and-talus
#7
David Agoada
Plain radiographs of the foot are a common form of examination in individuals when medical evaluation is indicated. Their availability makes them useful for studying human variation where large sample sizes are crucial. Calcaneal and talar morphology are critical in the understanding of human foot form and function, but few studies have examined the accuracy of linear measurements of these bones taken from radiographs. If linear measurements are to be used in quantitative analysis, their accuracy must first be demonstrated...
October 10, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29017734/anatomy-of-the-vasculature-of-the-lower-leg-and-harvest-of-a-fibular-flap-a-systematic-review
#8
REVIEW
A K Abou-Foul, A Fasanmade, S Prabhu, F Borumandi
The fibular free flap (FFF) is based on the peroneal artery, which has a consistent anatomy and makes a minimal contribution to the pedal circulation. However, certain anatomical variations in the vasculature of the leg might leave the peroneal artery with a major role in the perfusion of the foot, and to raise a FFF could lead to ischaemic complications. Our aim was to review the implications of anatomical variants on planning and harvest of a FFF. We systematically reviewed all relevant publications, and included 28 cases that described a dominant peroneal artery and FFF...
October 7, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28990838/3d-printing-calcaneal-fractures-continuously-improving-our-care-by-making-a-complex-problem-tangible
#9
Tim Schepers, Dominique Misselyn
Calcaneal fractures are amongst the most complex injuries known to man. Their intricate anatomy and extensive damage after trauma make them difficult to understand and treat. Most surgeons specialized in foot and ankle trauma agree that in most patients surgical managements yields the best result. Functional outcome is largely dependent on preventing complications and restoring anatomy. Reconstruction of height and suntalar joint congruency for example are both associated with improved outcome. Over the years insight in the complex (patho-)anatomy has increased...
October 9, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28982055/ontogenetic-changes-in-foot-strike-pattern-and-calcaneal-loading-during-walking-in-young-children
#10
Angel Zeininger, Daniel Schmitt, Jody L Jensen, Liza J Shapiro
The assumption that the morphology of the human calcaneus reflects high and cyclical impact forces at heel strike during adult human walking has never been experimentally tested. Since a walking step with a heel strike is an emergent behavior in children, an ontogenetic study provides a natural experiment to begin testing the relationship between the mechanics of heel strike and calcaneal anatomy. This study examined the ground reaction forces (GRFs) of stepping in children to determine the location of the center of pressure (COP) relative to the calcaneus and the orientation and magnitude of ground reaction forces during foot contact...
September 23, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28944643/injury-rates-in-martial-art-athletes-anthropometric-parameters-and-training-volume-but-not-foot-morphology-indexes-are-predictive-risk-factors-for-lower-limb-injuries
#11
Jacopo A Vitale, Tito Bassani, Fabio Galbusera, Alberto Bianchi, Nicolò Martinelli
BACKGROUND: Previous studies attempted to identify possible risk factors for acute and overuse injuries in several sports disciplines such as running, gymnastics or team sports. Given the lack of scientific works focused on risk factors for lower limb injuries in martial arts, the present study was aimed to investigate foot anatomy, anthropometric measures, and other background information as possible risk factors of injury in barefoot athletes practicing judo, karate, kung fu, thai boxe, or aikido...
September 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28924737/contribution-to-the-anatomical-nomenclature-concerning-lower-limb-anatomy
#12
David Kachlik, Vladimir Musil, Vaclav Baca
PURPOSE: The aim of this article is to extend and revise the sections of Terminologia Anatomica (TA) dealing with the lower limb structures and to justify the use of newly proposed anatomical terms in clinical medicine, education, and research. METHODS: Anatomical terms were gathered during our educational experience from anatomical textbooks and journals and compared with the four previous editions of the official Latin anatomical nomenclature. RESULTS: The authors summarise 270 terms with their definitions and explanations for both constant and variable morphological structures (bones, joints, muscles, vessels, nerves and superficial structures) of the hip, thigh, knee, leg, ankle, and foot completed with several grammatical remarks and some general anatomical terms...
September 18, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28880392/pedal-peptide-orcokinin-type-neuropeptide-signaling-in-a-deuterostome-the-anatomy-and-pharmacology-of-starfish-myorelaxant-peptide-in-asterias-rubens
#13
Ming Lin, Michaela Egertová, Cleidiane G Zampronio, Alexandra M Jones, Maurice R Elphick
Pedal peptide (PP) and orcokinin (OK) are related neuropeptides that were discovered in protostomian invertebrates (mollusks, arthropods). However, analysis of genome/transcriptome sequence data has revealed that PP/OK-type neuropeptides also occur in a deuterostomian phylum-the echinoderms. Furthermore, a PP/OK-type neuropeptide (starfish myorelaxant peptide, SMP) was recently identified as a muscle relaxant in the starfish Patiria pectinifera. Here mass spectrometry was used to identify five neuropeptides (ArPPLN1a-e) derived from the SMP precursor (PP-like neuropeptide precursor 1; ArPPLNP1) in the starfish Asterias rubens...
December 15, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28876452/management-of-primary-malignant-bone-and-soft-tissue-tumors-of-foot-and-ankle-is-it-worth-salvaging
#14
Harzem Özger, Buğra Alpan, Osman Emre Aycan, Natig Valiyev, Mustafa Çağlar Kir, Fulya Ağaoğlu
BACKGROUND AND OBJECTIVE: Performing limb salvage with safe margins and preserving meaningful function is very difficult in the setting of primary malignant bone and soft tissue tumors due to the complex and constrained anatomy of the foot and ankle. The study aims to evaluate the efficacy of limb salvage procedures in terms of functional and oncological outcomes. METHODS: Clinical data of 48 patients, who underwent surgical treatment between 1992 and 2015 in our institution, were retrospectively analyzed...
September 6, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28828179/the-subtalar-joint-a-complex-mechanism
#15
Nicola Krähenbühl, Tamara Horn-Lang, Beat Hintermann, Markus Knupp
Subtalar joint anatomy is complex and can vary significantly between individuals.Movement is affected by several adjacent joints, ligaments and periarticular tendons.The subtalar joint has gained interest from foot and ankle surgeons in recent years, but its importance in hindfoot disorders is still under debate.The purpose of this article is to give a general overview of the anatomy, biomechanics and radiographic assessment of the subtalar joint.The influence of the subtalar joint on the evolution of ankle joint osteoarthritis is additionally discussed...
July 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28818476/complex-anatomic-abnormalities-of-the-lower-leg-muscles-and-tendons-associated-with-phocomelia-a-case-report
#16
Thomas Hodo, Mark Hamrick, Yulia Melenevsky
Musculoskeletal anatomy is widely known to have components that stray from the norm in the form of variant muscle and tendon presence, absence, origin, insertion, and bifurcation. Although these variant muscles and tendons might be deemed incidental and insignificant findings by most, they can be important contributors to pathologic physiology or, more importantly, an option for effective treatment. In the present case report, we describe a patient with phocomelia and Müllerian abnormalities secondary to in utero thalidomide exposure...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28807213/turkey-model-for-flexor-tendon-research-in%C3%A2-vitro-comparison-of-human-canine-turkey-and-chicken-tendons
#17
COMPARATIVE STUDY
Assaf Kadar, Andrew R Thoreson, Ramona L Reisdorf, Peter C Amadio, Steven L Moran, Chunfeng Zhao
BACKGROUND: Flexor tendon injuries are one of the most common hand injuries and remain clinically challenging for functional restoration. Canine and chicken have been the most commonly used animal models for flexor tendon-related research but possess several disadvantages. The purpose of this study was to explore a potential turkey model for flexor tendon research. METHODS: The third digit from human cadaveric hands, canine forepaws, turkey foot, and chicken foot were used for this study...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28779803/deltoid-ligament-repair-in-flatfoot-deformity
#18
REVIEW
Ezekiel Oburu, Mark S Myerson
Deltoid ligament reconstruction allows for joint preservation of the ankle in the setting of patients a triple arthrodesis due to a flat foot deformity. Although the increased forces that may occur in the ankle joint after a triple arthrodesis cannot be eliminated, reconstruction of the ligament will delay and may prevent the onset arthritis, allowing the patient to maintain mobility of the ankle joint. The anatomy, surgery, and risks and benefits are discussed.
September 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28770484/high-resolution-mr-lymphangiography-for-planning-lymphaticovenous-anastomosis-treatment-a-single-centre-experience
#19
Maria Antonietta Mazzei, Francesco Gentili, Francesco Giuseppe Mazzei, Paolo Gennaro, Duccio Guerrieri, Andrea Nigri, Guido Gabriele, Elisabetta Weber, Alfonso Fausto, Giuseppe Botta, Luca Volterrani
PURPOSE: This article illustrates the feasibility of MR lymphangiography (MRL) for imaging lymphatic vessels in patients with lymphedema, its accuracy in distinguishing lymphatic vessels from veins, and its utility for planning Lymphaticovenous anastomosis (LVA) treatment. MATERIALS AND METHODS: We prospectively enrolled 30 patients (24 women, range 18-70, 17 cases of lower limb lymphedema, 6 cases of primary lymphedema). All the patients underwent MRL, using a 1...
August 2, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28768118/an-imaged-based-three-dimensional-study-of-first-metatarsal-protrusion-distance-in-women-with-and-without-hallux-valgus
#20
Ward M Glasoe, Michael W Rodriguez, Kara E Pioske
BACKGROUND: First metatarsal protrusion distance (MPD) has been commonly studied as a characteristic of hallux valgus deformity. To date, the majority of investigations have used radiographic methods, with most reporting first metatarsal (ray) protrusion to be associated with deformity. As an alternative, this study used a three dimensional (3D) image acquisition and data analysis method to quantify MPD. METHODS: Magnetic resonance images were acquired in weightbearing on 29 women (19 with hallux valgus; 10 controls)...
August 2, 2017: Journal of the American Podiatric Medical Association
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