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Tibial arteries

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https://www.readbyqxmd.com/read/29768632/lower-extremity-limb-salvage-with-cross-leg-pedicle-flap-cross-leg-free-flap-and-cross-leg-vascular-cable-bridge-flap
#1
Oscar J Manrique, Sarah N Bishop, Pedro Ciudad, Kian Adabi, Jorys Martinez-Jorge, Steven L Moran, Tony Huang, Aparna Vijayasekaran, Shih-Heng Chen, Hung-Chi Chen
BACKGROUND:  Lower extremity salvage following significant soft tissue loss can be complicated by lack of recipient vessel for free tissue transfer. We describe our experience in lower limb salvage for patients with no recipient vessels with the use of pedicle, free and cable bridge flaps. METHODS:  A retrospective review from 1985 to 2017 of patients undergoing lower limb salvage using a contralateral pedicle cross leg (PCL) flaps, free cross leg (FCL) flaps, or free cable bridge (FCB) flaps was conducted...
May 16, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29732723/rednumerical-modelling-of-a-peripheral-arterial-stenosis-using-dimensionally-reduced-models-and-kernel-methods
#2
Tobias Köppl, Gabriele Santin, Bernard Haasdonk, Rainer Helmig
In this work, we consider two kinds of model reduction techniques to simulate blood flow through the largest systemic arteries, where a stenosis is located in a peripheral artery i.e. in an artery that is located far away from the heart. For our simulations we place the stenosis in one of the tibial arteries belonging to the right lower leg (right post tibial artery). The model reduction techniques that are used are on the one hand dimensionally reduced models (1-D and 0-D models, the so-called mixed-dimension model) and on the other hand surrogate models produced by kernel methods...
May 6, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29732358/anatomical-popliteal-artery-entrapment-syndrome
#3
Yong Jae Kwon, Tae-Won Kwon, Jun Gyo Gwon, Yong-Pil Cho, Seung-Jun Hwang, Ki-Young Go
Purpose: The aim of this study was to analyze anatomical popliteal artery entrapment syndrome (PAES) and to individualize the treatment of this condition according to the anatomical status of the artery and the adjacent structure. Methods: A total of 35 anatomical PAES legs in 23 consecutive patients treated within the Asan Medical Center, Seoul, Korea between 1995 and 2011 were analyzed retrospectively. Anatomical PAES was diagnosed by MRI and/or CT scans of the knee joint, and CT or conventional transfemoral arteriography of the lower extremities...
May 2018: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29723635/subchondral-bone-circulation-in-osteoarthritis-of-the-human-knee
#4
Roy K Aaron, Jennifer R Racine, Anne Voisinet, Peter Evangelista, Jonathan P Dyke
OBJECTIVE: The hypothesis of this study is that human subchondral bone exhibits abnormal patterns of perfusion in osteoarthritis (OA) that can be characterized by kinetic parameters of blood flow using dynamic contrast enhanced (DCE) MRI. DESIGN: Fifteen subjects with advanced OA of the knee and 7 control subjects without OA were studied at 1.5 Tesla with DCE-MRI. Region of interest (ROIs) analysis of pharmacokinetic perfusion parameters were used to examine initial uptake and washout of the contrast agent in the lateral tibial plateau...
April 30, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29717398/successful-limb-salvage-through-staged-bypass-combined-with-free-gracilis-muscle-transfer-for-critical-limb-ischemia-with-osteomyelitis-after-failed-endovascular-therapy
#5
Keisuke Miyake, Shinsuke Kikuchi, Hiroko Okuda, Atsuhiro Koya, Satomi Abe, Yoshiki Sawa, Tetsuo Ota, Nobuyoshi Azuma
BACKGROUND: Critical limb ischemia with osteomyelitis is so difficult to treat that even appropriate revascularization and wound therapy cannot achieve limb salvage because of uncontrollable infection. It is still difficult to judge the possibility of limb salvage before revascularization. CASE PRESENTATION: A 73-year-old male complained of a small ulcer on his left toe, which was treated with multiple endovascular therapy. After failed endovascular therapy, he suffered extensive tissue loss with tibial osteomyelitis...
May 2, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29716476/high-reintervention-and-amputation-rates-after-outpatient-atherectomy-for-claudication
#6
Dipankar Mukherjee, Brian Contos, Erica Emery, Devon T Collins, James H Black
Outpatient use of atherectomy for peripheral arterial disease has grown rapidly and outcomes are poorly understood. We analyzed outcomes of atherectomy done for claudication, comparing office and hospital outpatient settings. Analysis of Medicare Part B claims data was performed for incident femoral-popliteal or tibial-peroneal atherectomy from 2012 to 2014. Longitudinal analysis assessed services 18 months before, during, and up to 18 months after the incident peripheral vascular intervention (PVI). Differences between office-based and hospital outpatient-based settings were assessed using χ2 and Fisher exact tests...
January 1, 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29709406/massive-organ-embolization-from-primary-aortic-thrombosis
#7
Catarina Patrício, Mariana Marques Silva, Pedro Eduardo Silva, João Oliveira, Luís Bagulho
A 49-year-old woman was hospitalized for acute left foot arterial ischemia. Arterial Doppler revealed occlusion of the dorsalis pedis and posterior tibial arteries. A computed tomography angiography performed to assess abdominal pain showed hepatic, splenic, renal and pancreatic infarctions. A splenic artery embolism and a small aortic wall thrombus at the celiac trunk were identified. No radiological signs of aortic atherosclerosis were found. No predisposing conditions for secondary aortic thrombosis or intracardiac embolic sources were detected...
April 27, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29704953/risk-factors-associated-with-amputation-in-civilian-popliteal-artery-trauma
#8
Michael J Ramdass, Alyssa Muddeen, Patrick Harnarayan, Richard Spence, David Milne
Popliteal artery trauma is uncommon but is associated with a high risk of limb loss depending on the scenario involving blunt or penetrating trauma as well as the severity and extent of injury that has occurred. In our setting there is a significant amount of gang and civilian warfare resulting in Vascular Trauma. There were 32 patients over a decade who sustained traumatic injury to the popliteal artery consisting of 30 males (94%) and 2 females with an age range 16-59 years with a mean of 32. There were 20 cases of penetrating trauma (63%) and 12 cases of blunt trauma (37%)...
April 24, 2018: Injury
https://www.readbyqxmd.com/read/29701415/antiphospholipid-syndrome-and-acute-postpartum-limb-ischemia
#9
Inês Antunes, Carlos Pereira, Rui Machado, Duarte Rego, Vitor Ferreira, João Gonçalves, Gabriela Teixeira, Carlos Veiga, Daniel Mendes, Rui Almeida
INTRODUCTION: The diagnosis of Antiphospholipid syndrome (APS) implies the identification of antiphospoholipid antibodies and arterial/venous thrombosis or pregnancy loss. During pregnancy, there is an increased risk of thrombotic complications. METHODS: Present a case of acute lower limb ischemia in a patient with APS during postpartum period Materials/ Methods: review of a clinical case and available literature Results: Patient diagnosed with APS (triple antibody positive and antecedent of 3 previous abortions) underwent cesarean at 29 weeks of gestation...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29700593/neurovascular-and-tendon-injuries-due-to-ankle-arthroscopy-portals-a-meta-analysis-of-interventional-cadaveric-studies
#10
Kaissar Yammine, Chahine Assi
Neurovascular and tendon structures are considered at risk when performing ankle arthroscopy. Injury rate and distance from portals to such structures varied in the literature. The aim of this meta-analysis is to evaluate the injury risk of these structures in terms of proximity and injury prevalence. Thirteen studies including 184 cadaveric ankle arthroscopy procedures met the inclusion criteria. The antero-central portal exhibited the highest frequencies of nerve/vessel proximity and nerve/vessel missed injuries...
April 26, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29690818/in-situ-popliteal-tibial-bypass-with-the-short-saphenous-vein-through-a-posterior-approach-for-limb-salvage
#11
Sosei Kuma, Kohichi Morisaki, Jin Okazaki, Shinsuke Mii
A 69-year-old female patient was admitted to our hospital with gangrene of her left first and second digits. Angiography showed a diffuse occlusive lesion from the external iliac artery to the crural arteries. Endovascular therapy to the external iliac artery, above-knee femoropopliteal bypass with a polytetrafluoroethylene graft, and popliteal-tibial bypass through a posterior approach with the short saphenous vein graft were performed in 3 stages because the length of the great saphenous vein that was suitable for grafting was insufficient...
January 1, 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29675441/acute-bilateral-lower-extremity-paralysis-secondary-to-acute-thrombosis-of-an-infrarenal-abdominal-aortic-aneurysm
#12
T Joseph Watson, W Kurtis Childers, Lindsey Haga, John Calaitges
We present the case of a 64-year-old male who presented to the emergency department with bilateral limb ischemia and paralysis for approximately 1 hour. Computed tomographic angiography demonstrated occlusion of the infrarenal aorta beginning just above the patient's known abdominal aortic aneurysm (AAA) and extending into both common iliac arteries. He was emergently treated via open repair of the AAA with a Gore-Tex tube graft, bilateral common iliac thrombectomies, and bilateral lower extremity four-compartment fasciotomies...
June 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/29668582/bilateral-visual-loss-and-cerebral-infarction-after-spleen-embolization-in-a-trauma-patient-with-idiopathic-thrombocytopenic-purpura-a-case-report
#13
Wei-Ting Wang, Yu-Yu Li, Wan-Ching Lin, Jen-Yin Chen, Kuo-Mao Lan, Cheuk-Kwan Sun, Kuo-Chuan Hung
RATIONALE: Splenic artery embolization (SAE) is a common procedure in trauma patients with blunt splenic injuries. We report a case of acute ischemic stroke following orthopedic surgery in a patient with post-SAE reactive thrombocytosis. PATIENT CONCERNS: A 37-year-old woman with idiopathic thrombocytopenic purpura (ITP) suffered from multiple trauma scheduled for open reduction and internal fixation for right tibial and left radius fracture five days after SAE...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29664183/posterior-tibial-perforators-relationship-with-superficial-nerves-and-veins-a-cadaver-study
#14
Antonio Bulla, Alberto Bolletta, Luca Fiorot, Matteo Maffei, Pasquale Bandiera, Vincent Casoli, Andrea Montella, Gian Vittorio Campus
BACKGROUND: Most authors have evaluated the location of lower leg arterial perforators, but little is still known about the relationship between the arterial network and great saphenous vein (GSV) and saphenous nerve (SN). The aim of this study is to evaluate the relationship between the arterial network of the posterior tibial artery perforators, the cutaneous nerves, and the superficial venous system in the lower one third of the leg. METHODS: Eighteen lower limbs from cadavers were used for this study...
April 17, 2018: Microsurgery
https://www.readbyqxmd.com/read/29656968/anatomical-features-of-the-descending-genicular-artery-to-facilitate-surgical-exposure-for-the-subvastus-approach-a-cadaveric-study
#15
Yuya Kawarai, Junichi Nakamura, Takane Suzuki, Shigeo Hagiwara, Michiaki Miura, Seiji Ohtori
BACKGROUND: The purpose of this cadaveric study was to clarify the proximal limit for the subvastus approach (SVA) in total knee arthroplasty to decrease potential vascular injury. METHODS: Seventy embalmed knees underwent a modified SVA using a 14-cm oblique medial incision. Anatomical features of the descending genicular artery (DGA) were investigated with regard to variation, distance of the vessels from surgical landmarks, and sex differences. RESULTS: The DGA was identified in 62 knees (89%), while it was absent in 8 knees (11%); in the latter, the articular, saphenous, and muscular branches arose separately from the femoral artery...
March 27, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29623524/could-buerger-s-disease-cause-nonarteritic-anterior-ischemic-optic-neuropathy-a-rare-case-report
#16
Anil Korkmaz, Omer Karti, Dilek Top Karti, Bora Yüksel, Mehmet Ozgur Zengin, Tuncay Kusbeci
We present an interesting case with nonarteritic anterior ischemic optic neuropathy (NAION) accompanied by Buerger's disease. A 43-year-old man was referred to our neuro-ophthalmology clinic with a complaint of visual deterioration in the left eye that started 5 days ago. He suffered from Buerger's disease, and he had acute pain in the right lower limb below the knee. His best corrected visual acuity was 10/10 in the right eye and 2/10 in the left eye by Snellen chart. There was a relative afferent pupil defect in the left eye...
April 5, 2018: Neurological Sciences
https://www.readbyqxmd.com/read/29615358/outcomes-of-infrageniculate-retrograde-versus-transfemoral-access-for-endovascular-intervention-for-chronic-lower-extremity-ischemia
#17
Ashraf G Taha, Adham N Abou Ali, George Al-Khoury, Michael J Singh, Michel S Makaroun, Efthymios D Avgerinos, Rabih A Chaer
OBJECTIVE: Retrograde infrageniculate access is an alternative treatment strategy for patients who have failed to respond to antegrade endovascular intervention. This study compares the outcomes of infrageniculate retrograde arterial access with the conventional transfemoral access for the endovascular management of chronic lower extremity ischemia. METHODS: This was a retrospective single-center review of retrograde endovascular intervention (REI) from 2012 to 2016...
March 31, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29562965/tibia-bone-microvascular-flow-dynamics-as-compared-to-anterior-tibial-artery-flow-during-body-tilt
#18
Rachel L Becker, Jamila H Siamwala, Brandon R Macias, Alan R Hargens
BACKGROUND: We compared microvascular and macrovascular blood flows of the tibia and anterior tibial artery during graded whole-body tilt. We hypothesized equal responses for bone microvascular and macrovascular blood flows during varying angles of tilt. METHODS: There were 18 volunteers who were randomly positioned in the following postures: supine, 15° head-up tilt, 6° head-up tilt, 6° head-down tilt, and 15° head-down tilt using an inversion table with reference to seated posture (baseline control)...
April 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29552465/how-to-test-the-anterolateral-ligament-with-ultrasound
#19
Etienne Cavaignac, Gregoire Laumond, Nicolas Reina, Karine Wytrykowski, Jérôme Murgier, Marie Faruch, Philippe Chiron
Ultrasonography (US) is a nonirradiating, low-cost, real-time imaging modality that has very good spatial resolution. US can be used to view the anterolateral ligament (ALL) and injuries to the ALL. Several authors have sought to analyze the anterolateral aspect of the knee using US with varying luck. All of them analyzed the ALL statically only. The goal of this Technical Note is to describe in detail the technique that we use to analyze the anterolateral aspect of the knee in patients with an anterior cruciate ligament tear...
January 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29548631/anatomic-study-of-anterior-and-posterior-ankle-portal-sites-for-ankle-arthroscopy-in-plantarflexion-and-dorsiflexion-a-cadaveric-study-in-the-japanese-population
#20
Ichiro Tonogai, Fumio Hayashi, Yoshihiro Tsuruo, Koichi Sairyo
Arthroscopy is an important and minimally invasive diagnostic and therapeutic tool. However, the risk of injury to the neurovascular structures around the portals exists during arthroscopy of the ankle. In the present study, we measured the distance between each portal and the adjacent neurovascular structures with the foot in plantarflexion and dorsiflexion in the Japanese population. Standard anterolateral (AL), anteromedial, posterolateral (PL), and posteromedial portal positions were identified in 6 fresh adult cadaveric feet...
May 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
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