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https://www.readbyqxmd.com/read/27925702/quantitative-elastosonography-of-the-myotendinous-junction-normal-behavior-and-correlation-with-a-standard-measurement-system-during-functional-tests
#1
Paolo Minafra, Chandra Bortolotto, Ermanno Rampinini, Fabrizio Calliada, Giuseppe Monetti
OBJECTIVES: In recent years, an increasing need to use imaging to assess normal and adaptive muscle function, in addition to its anatomy and structure, has emerged. We evaluated the myotendinous junction's elastosonographic behavior in light of the most recent literature on its physiologic behavior. The elastosonographic studies were compared with the results obtained from a standard measurement system to ensure a correlation with maximal muscle contraction. METHODS: Nineteen male professional soccer players were assessed during functional tests...
November 30, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27921154/peripheral-stent-thrombosis-leading-to-acute-limb-ischemia-and-major-amputation-incidence-and-risk-factors-in-the-aortoiliac-and-femoropopliteal-arteries
#2
Konstantinos Katsanos, Said A M Al-Lamki, Aneeta Parthipun, Stavros Spiliopoulos, Sanjay Dhanji Patel, Ioannis Paraskevopoulos, Hany Zayed, Athanasios Diamantopoulos
PURPOSE: To report the real-world incidence and risk factors of stent thrombosis in the aortoiliac and femoropopliteal arteries in case of bare nitinol stent (BNS) or covered nitinol stent (CNS) placement from a single-centre retrospective audit. MATERIALS AND METHODS: Medical records of consecutive patients treated with peripheral stent placement for claudication or critical limb ischemia were audited for definite stent thrombosis defined as imaging confirmed stent thrombosis that presented as acute limb-threatening ischemia...
December 5, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27906945/ganglion-cyst-at-the-proximal-tibiofibular-joint-in-a-patient-with-painless-foot-drop
#3
Abdulmuhsen Alsahhaf, Waleed Renno
Entrapment neuropathies of the fibular nerve and its branches are often underdiagnosed due to the lack of reliable diagnosis using clinical examination and electrophysiologic evaluation. Most fibular nerve compressions may be classified into 2 broad categories: (a) mechanical causes, which occur at fibrous or fibro-osseous tunnels, and (b) dynamic causes related to nerve injury during specific limb positioning. Foot drop resulting from weakness of the dorsiflexor muscles of the foot is a relatively uncommon presentation and closely related to L5 neuropathy caused by a disc herniation...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27904980/a-resolved-two-way-coupled-cfd-6-dof-approach-for-predicting-embolus-transport-and-the-embolus-trapping-efficiency-of-ivc-filters
#4
Kenneth I Aycock, Robert L Campbell, Keefe B Manning, Brent A Craven
Inferior vena cava (IVC) filters are medical devices designed to provide a mechanical barrier to the passage of emboli from the deep veins of the legs to the heart and lungs. Despite decades of development and clinical use, IVC filters still fail to prevent the passage of all hazardous emboli. The objective of this study is to (1) develop a resolved two-way computational model of embolus transport, (2) provide verification and validation evidence for the model, and (3) demonstrate the ability of the model to predict the embolus-trapping efficiency of an IVC filter...
November 30, 2016: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/27896394/the-orientation-of-the-surgical-epicondylar-axis-varies-in-varus-and-non-varus-knees-in-the-coronal-plane
#5
Yunjie Zhang, Xiaofeng Wang, Yunchao Shao, Qing Xia
PURPOSE: To investigate the orientations of the surgical epicondylar axis (SEA) of varus and non-varus knees in the coronal plane. METHODS: One-hundred and sixty-two knees from 81 Chinese patients undergoing total knee arthroplasty (TKA) were retrospectively investigated. The angle between the medial side of the femoral mechanical axis and the SEA (MA-SEA), as well as the physiological valgus angle, was measured in the coronal plane using three-dimensional reconstruction...
November 28, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27874150/the-radiological-research-for-pelvis-asymmetry-of-unilateral-developmental-dysplasia-of-the-hip-in-adult
#6
Ya-Min Li, Jue-Hong Li, Bin Li, Jia-Xing Wang, Yun-Su Chen
To investigate whether adult patients with unilateral developmental dysplasia of the hip (UDDH) have pelvic asymmetry and what correlation existing between them. Methods: A total of 100 adult patients with UDDH were enrolled in the retrospective observational study in Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China, between January 2012 and February 2014. The anteroposterior pelvic radiographs were reviewed and the pelvic heights and ischium heights were measured and compared between the affected and non-affected sides to find out the relationship between the pelvic morphology and hip dysplasia...
December 2016: Saudi Medical Journal
https://www.readbyqxmd.com/read/27845481/unilateral-variation-in-extensor-digitorum-longus-muscle
#7
A Banerje, S Singh, K Raza, N Rani, S Kaler
During a routine dissection of an adult embalmed male cadaver for educational purpose in the department of anatomy at AIIMS, New Delhi, India, a rare unilateral variation of extensor digitorum longus (EDL) was found which is a muscle of anterior compartment of the leg. There was a split tendon of EDL muscle in the anterior compartment of left leg which became a common tendon in front of the ankle joint. This common tendon of EDL muscle again divided into four slips and were inserted in to the lateral four toes...
September 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/27755444/aberrant-lower-extremity-arterial-anatomy-in-microvascular-free-fibula-flap-candidates-management-algorithm-and-case-presentations
#8
Alyssa R Golas, Jamie P Levine, Justin Ream, Eduardo D Rodriguez
An accurate and comprehensive understanding of lower extremity arterial anatomy is essential for the successful harvest and transfer of a free fibula osteoseptocutaneous flap (FFF). Minimum preoperative evaluation includes detailed history and physical including lower extremity pulse examination. Controversy exists regarding whether preoperative angiographic imaging should be performed for all patients. Elevation of an FFF necessitates division of the peroneal artery in the proximal lower leg and eradicates its downstream flow...
October 14, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27727021/automatic-segmentation-and-probe-guidance-for-real-time-assistance-of-ultrasound-guided-femoral-nerve-blocks
#9
Erik Smistad, Daniel Høyer Iversen, Linda Leidig, Janne Beate Lervik Bakeng, Kaj Fredrik Johansen, Frank Lindseth
Ultrasound-guided regional anesthesia can be challenging, especially for inexperienced physicians. The goal of the proposed methods is to create a system that can assist a user in performing ultrasound-guided femoral nerve blocks. The system indicates in which direction the user should move the ultrasound probe to investigate the region of interest and to reach the target site for needle insertion. Additionally, the system provides automatic real-time segmentation of the femoral artery, the femoral nerve and the two layers fascia lata and fascia iliaca...
January 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/27714727/anatomy-of-the-long-peroneal-muscle-of-the-leg
#10
Urszula Bogacka, Dawid Dziedzic, Iulian Komarnitki, Bogdan Ciszek
BACKGROUND: The aim of the work was to perform a morphometric analysis of the long peroneal muscle of the leg and explore the relationship between muscle belly and tendon. MATERIALS AND METHODS: Ten lower limbs (8 right and 2 left) were fixed in formaldehyde and dissected using standard technique. The long peroneal muscle was exposed from the proximal attachment to the top of a lateral malleolus. RESULTS: The tendon was subsequently freed and various measurements were taken...
October 7, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27707867/the-diversity-and-evolution-of-locomotor-muscle-properties-in-anurans
#11
Henry C Astley
Anuran jumping is a model system for linking muscle physiology to organismal performance. However, anuran species display substantial diversity in their locomotion, with some species performing powerful leaps from riverbanks or tree branches, while other species move predominantly via swimming, short hops or even diagonal-sequence gaits. Furthermore, many anurans with similar locomotion and morphology are actually convergent (e.g. multiple independent evolutions of 'tree frogs'), while closely related species may differ drastically, as with the walking toad (Melanophryniscus stelzneri) and bullfrog-like river toad (Phrynoides aspera) compared with other Bufonid toads...
October 1, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27692726/critical-limb-ischemia-an-expert-statement
#12
Mehdi H Shishehbor, Christopher J White, Bruce H Gray, Matthew T Menard, Robert Lookstein, Kenneth Rosenfield, Michael R Jaff
Critical limb ischemia (CLI), the most advanced form of peripheral artery disease, is associated with significant morbidity, mortality, and health care resource utilization. It is also associated with physical, as well as psychosocial, consequences such as amputation and depression. Importantly, after a major amputation, patients are at heightened risk of amputation on the contralateral leg. However, despite the technological advances to manage CLI with minimally invasive technologies, this condition often remains untreated, with significant disparities in revascularization and amputation rates according to race, socioeconomic status, and geographic region...
September 22, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27625411/froghopper-inspired-direction-changing-concept-for-miniature-jumping-robots
#13
Gwang-Pil Jung, Kyu-Jin Cho
To improve the maneuverability and agility of jumping robots, several researchers have studied steerable jumping mechanisms. This steering ability enables robots to reach a particular target by controlling their jumping direction. To this end, we propose a novel direction-changing concept for miniature jumping robots. The proposed concept allows robots to be steerable while exerting minimal effects on jumping performance. The key design principles were adopted from the froghopper's power-producing hind legs and the moment cancellation accomplished by synchronized leg operation...
2016: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/27564437/posterior-thigh-flap-pedicled-on-the-cutaneous-vessels-arising-from-the-popliteo-posterior-intermediate-artery-a-report-of-5-cases
#14
Xi-Guang Sun, Xu Gong, Liang-Song Song, Jian-Li Cui, Xin Yu, Bin Liu, Lai-Jin Lu
Surgical repair of soft tissue defects of the knee and leg remains challenging. Using a case study approach, the anatomy of the popliteo-posterior intermediate cutaneous artery was examined, and a reverse island flap method was developed and implemented. After obtaining informed consent, 5 patients (1 woman, 4 men, age range 31 to 57 years) underwent the experimental use of a reverse island flap with a posterior thigh flap pedicled on the cutaneous vessels arising from the popliteo-posterior intermediate artery to repair soft-tissue defects of the knee and leg...
August 2016: Ostomy/wound Management
https://www.readbyqxmd.com/read/27556762/modalities-to-treat-venous-ulcers-compression-surgery-and-bioengineered-tissue
#15
Lisa J Gould, Garima Dosi, Kara Couch, Gary W Gibbons, Raelina S Howell, Harold Brem, Marjana Tomic-Canic
BACKGROUND: Venous leg ulcers (VLUs) represent the most common ulcers of the lower extremity. VLUs are notorious for delayed and prolonged healing with high rates of recurrence. Most patients with VLUs also have significant comorbidities that interfere with primary wound healing. Thus, caring for patients with VLUs requires an interdisciplinary approach that addresses the abnormal venous anatomy and the downstream effects that lead to inflammation, ulceration, and a hostile wound microenvironment...
September 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27515197/the-challenge-of-gate-cannulation-during-endovascular-aortic-repair-a-hypothesis-of-simplification
#16
D Mazzaccaro, M Sciarrini, G Nano
AIM: One of the technical problems which can be encountered during the endovascular repair (EVAR) of abdominal aortic aneurysms, is represented by the challenge of cannulation of the contralateral gate after the opening of the main body of the endograft, especially in case of tortuous aorta-iliac anatomy. Aim of this work is to propose a hypothesis of simplification, verifying the possibility to maximize the area available for the cannulation of the contralateral gate by simulating an oblique distal end of the leg of the most used devices, without affecting the correct sealing between the main body and the iliac extension...
September 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27513837/blood-vessels-of-the-shin-anterior-tibial-artery-anatomy-and-embryology-own-studies-and-review-of-the-literature
#17
Izabela Mróz, Stanislas Kielczewski, Dominik Pawlicki, Wojciech Kurzydło, Piotr Bachul, Monika Konarska, Tomasz Bereza, Klaudia Walocha, Lourdes Niroja Kaythampillai, Paweł Depukat, Artur Pasternak, Tomasz Bonczar, Przemysław Chmielewski, Ewa Mizia, Janusz Skrzat, Małgorzata Mazur, Łukasz Warchoł, Krzysztof Tomaszewski
Injuries of the lower leg are rather frequent in every day orthopedic routine. Process of healing takes quite a long time and is commonly dependent on the proper vasculature. e study was carried out on 50 human lower legs obtained during autopsies. The anatomy of the vascular system of the leg was studied using classical anatomical dissection methods. Based also on literature we have reviewed the current knowledge on the vascularization of the lower leg and its embryological background.
2016: Folia Medica Cracoviensia
https://www.readbyqxmd.com/read/27484075/-use-of-patient-specific-instruments-at-total-knee-arthroplasty-one-year-results-of-a-prospective-randomised-study
#18
D Musil, J Stehlík, K Abrman, M Held, P Sadovský
UNLABELLED: PURPOSE OF THE STUDY The aim of this prospective study was to evaluate, at one year of follow-up, radiographic and clinical results of total knee arthroplasty (TKA) performed with use of Zimmer® Patient Specific Instruments (PSIs) which allow for planning and customising each patient's TKA. MATERIAL AND METHODS Of the patients with knee arthritis who were eligible for joint replacement, 23 were randomly selected and included in this study. There were 11 men and 12 women, with 11 right and 12 left knee joints...
2016: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/27468673/ultrasound-guided-peripheral-nerve-procedures
#19
REVIEW
Jeffrey A Strakowski
Ultrasound guidance allows real-time visualization of the needle in peripheral nerve procedures, improving accuracy and safety. Sonographic visualization of the peripheral nerve and surrounding anatomy can provide valuable information for diagnostic purposes and procedure enhancement. Common procedures discussed are the suprascapular nerve at the suprascapular notch, deep branch of the radial nerve at the supinator, median nerve at the pronator teres and carpal tunnel, lateral cutaneous nerve of the thigh, superficial fibular nerve at the leg, tibial nerve at the ankle, and interdigital neuroma...
August 2016: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/27441939/reverse-sural-artery-pedicle-flap
#20
Christopher G Finkemeier, Rafael Neiman
OBJECTIVE: To demonstrate the technical aspects of a reverse sural artery (RSA) flap. DESIGN: Video case presentation. SETTING: Community Level 2 Trauma Center. PATIENTS: Single patient with a full thickness soft tissue loss over the posterior calcaneal tuberosity requiring soft tissue coverage. METHOD: Video demonstration of the stepwise planning and technical aspects of performing an RSA flap...
August 2016: Journal of Orthopaedic Trauma
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