keyword
MENU ▼
Read by QxMD icon Read
search

Endoprosthesis

keyword
https://www.readbyqxmd.com/read/28318830/long-term-outcome-of-the-gore-excluder-aaa-endoprosthesis-for-treatment-of-infrarenal-aortic-aneurysms
#1
Claire G Poublon, Suzanne Holewijn, Steven M M van Sterkenburg, Ignace F J Tielliu, Clark J Zeebregts, Michel M P J Reijnen
PURPOSE: To evaluate long-term outcome of GORE EXCLUDER AAA Endoprosthesis (W.L. Gore & Associates, Inc, Flagstaff, Arizona) for elective treatment of infrarenal aortic aneurysms and to evaluate performance of different generations of the device. MATERIALS AND METHODS: A retrospective analysis was performed of 248 patients undergoing elective endovascular aneurysm repair with the GORE EXCLUDER between January 2000 and December 2015 in 2 hospitals. Primary endpoint was reintervention-free survival...
March 15, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28302318/regional-differences-of-tibial-and-femoral-cartilage-in-the-chondrocyte-gene-expression-immunhistochemistry-and-composite-in-different-stages-of-osteoarthritis
#2
A Lahm, D Dabravolski, H Spank, H Merk, J Esser, R Kasch
The function of articular cartilage as an avascular tissue is mainly served by collagen type II and proteoglycan molecules. Within this matrix homeostasis between production and breakdown of the matrix is exceptionally sensitive. The current study was conducted to identify regional differences in specific alterations in cartilage composition during the osteoarthritic process of the human knee joint. Therefor the changes in the expression of the key molecules of the extracellular matrix were measured in dependence of the anatomical side (femoral vs tibial) and associated with immunohistochemistry and quantitative measurement...
February 24, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28265740/reconstruction-with-scapular-hemiarthroplasty-endoprosthesis-after-scapulectomy-for-malignant-tumour
#3
Li Min, Yong Zhou, Fan Tang, Wenli Zhang, Yi Luo, Hong Duan, Chongqi Tu
PURPOSE: Recently, endoprosthesis reconstruction has been used for scapular malignant tumours. Our aim is to present and evaluate the clinical indications, peri-operative technique, and mid-term clinical results. METHODS: Scapular hemiarthroplasty after total scapulectomy has been performed in 15 patients between 2011 and 2014. Clinical records and radiographs were evaluated retrospectively. RESULTS: The average follow-up was 41.2 months...
March 6, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28260762/improvement-of-liver-function-quality-of-life-and-survival-after-insertion-of-endoprosthesis-in-advance-malignant-biliary-obstruction
#4
A A Ullah, A Rahman, L H Chowdhury, A H Bhuiya
Obstructive jaundice due to advance malignancy is a fatal problem. It most commonly occurs at the distal common bile duct or at the hilum of liver. Magnetic Resonance Cholangio Pancreatography (MRCP) and Computed Tomography (CT) are most useful in identifying the underlying cause as well as localize the position of the stricture. For those patients with unresectable disease, progressive jaundice constitutes an immediate threat to their survival, in addition to significant loss to their quality of life secondary to pruritus, malaise and cholangitis...
January 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28260745/an-unusual-endovascular-therapeutic-approach-for-a-rare-case-of-may-thurner-syndrome
#5
Adrian DaSilva-DeAbreu, Luke Masha, Shareez Peerbhai
BACKGROUND The etiology of deep venous thrombosis (DVT) may pose a significant diagnostic challenge because truly reversible causes of DVT are rare. In this regard, known pelvic anatomic abnormalities such as aortic and iliac aneurysms should be seriously considered as a complicating factor in patients presenting with acute DVT so as not to miss a potentially curable etiology of May-Thurner syndrome (MTS). CASE REPORT We report the case of a 69-year-old man with a known abdominal aortic aneurysm and bilateral iliac artery aneurysms who presented with an acute DVT...
March 6, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28255225/influence-of-different-patellofemoral-design-variations-based-on-genesis-ii-total-knee-endoprosthesis-on-patellofemoral-pressure-and-kinematics
#6
Ulf G Leichtle, Barbara Lange, Yvonne Herzog, Peter Schnauffer, Carmen I Leichtle, Nikolaus Wülker, Andrea Lorenz
In total knee arthroplasty (TKA), patellofemoral groove design varies greatly and likely has a distinct influence on patellofemoral biomechanics. To analyse the selective influence, five patellofemoral design variations were developed based on Genesis II total knee endoprosthesis (original design, being completely flat, being laterally elevated, being medially elevated, and both sides elevated) and made from polyamide using rapid prototyping. Muscle-loaded knee flexion was simulated on 10 human knee specimens using a custom-made knee simulator, measuring the patellofemoral pressure distribution and tibiofemoral and patellofemoral kinematics...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28253947/-periprosthetic-femoral-fractures-after-total-hip-replacement-our-results-and-treatment-complications
#7
T Pavelka, M Salášek, D Weisová
PURPOSE OF THE STUDY The study consists of a retroactive evaluation of results of surgical treatment in patients with periprosthetic femoral fracture after total hip replacement and a comparison with results reported in the literature. MATERIAL AND METHODS In the period from 2003 to 2013, a total of 83 patients with periprosthetic femoral fracture after total hip replacement were treated at our clinic, namely 69 women and 14 men. The mean age in the cohort was 74 years (range 47-87). The Vancouver classification was used to grade the fractures...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28253946/-periprosthetic-infection-of-the-knee-megaprosthesis-following-a-resection-of-malignant-tumours-around-the-knee
#8
J Včelák, Z Matějovský, I Kofránek, R Kubeš, J Lesenský
PURPOSE OF THE STUDY The study presents the monocentric retrospective study of a group of patients with malignant tumours around the knee, treated by a wide resection and a reconstruction with megaprosthesis due to infectious complications. Provided is a detailed analysis of each operative treatment due to the manifestation and process of periprostethic infection of the knee megaprosthesis and the use of external fixator during a two-stage revision. MATERIAL AND METHODS Between 01/1993 and 12/2013, a total of 67 cemented megaprostheses were assessed, with a detailed analysis of 12 patients with periprosthetic infection...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28248023/-pyeloureteral-stenting-using-nitinol-stents
#9
B G Guliev, A M Zagazezhev
AIM: To test the effectiveness of nitinol stents in restoring patency of pyeloureteral segment (PUS). MATERIALS AND METHODS: Endoureteral nitinol stents were used in 54 patients. The indications for stenting were recurrent strictures of upper urinary tract and ureteral tumor obstruction in 34 and 20 patients, respectively. In 9 (16.6%) of them, including 4 women and 5 men aged 28-65 years, stenting was performed for extensive recurrent PUS strictures. In 8 patients extensive strictures resulted from various surgical interventions on the PUS...
November 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28236546/five-cases-of-early-dissociation-between-the-bipolar-hip-endoprosthesis-cup-components-either-spontaneously-or-during-reduction-maneuvers
#10
Vedat Uruç, Raif Özden, İbrahim Gökhan Duman, Aydıner Kalacı
Bipolar hemiarthroplasty is frequently used in the treatment of intracapsular hip fractures. Dissociation of the bipolar components can happen during the hip dislocation, the reduction maneuvers, or spontaneously without any dislocation. Here we report early dissociation between bipolar components in two cases during the attempt of closed reduction maneuvers and three cases with spontaneous dissociation without any trauma. To prevent or minimize this complication; the reduction of dislocated hips must be achieved very gently under general anesthesia with fluoroscopic control...
February 21, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28207510/endovascular-repair-of-bilateral-common-iliac-artery-aneurysms-using-gore-excluder-iliac-branch-endoprosthesis-without-aortobi-iliac-stent-graft-conjunction-a-case-report
#11
Vincenzo Ardita, Alessia Giaquinta, Massimiliano Veroux, Angelo Sanfiorenzo, Carla Virgilio, Giuseppe D'Arrigo, Pierfrancesco Veroux
INTRODUCTION: Bilateral common iliac artery (CIA) aneurysm (CIAA) is a rare entity. In the past decade, different endovascular approaches have been adopted for patients with several comorbidities or unfit for open repair (OR). Recently, the use of iliac branch stent graft has been proposed, resulting in satisfactory patency rates and decrease in morbidity. Currently, according to instruction for use, the iliac branch stent graft is to be used with aortobi-iliac stent graft conjunction...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28199936/the-longitudinal-split-technique-for-narrow-canal-tibia-in-a-case-of-distal-femur-replacement-for-osteosarcoma
#12
Toru Akiyama, Shotaro Kanda, Kazuo Saita
INTRODUCTION: There are currently no available prostheses that can be used for extremely small femurs or tibias of adult patients in countries where allograft is unavailable. CASE REPORT: We report the case of a 17-year-old girl requiring special limb salvage technique for distal femur reconstruction following resection of malignant tumor. This technique was needed because of a very narrow canal of the tibia. We split bilateral tibial cortices longitudinally with osteotomies to enlarge tibial canal enough to insert conventional endoprosthesis...
January 31, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28194713/use-of-compressive-osseointegration-endoprostheses-for-massive-bone-loss-from-tumor-and-failed-arthroplasty-a-viable-option-in-the-upper-extremity
#13
Krista A Goulding, Adam Schwartz, Steven J Hattrup, R Lor Randall, Donald Lee, Damian M Rispoli, Daniel M Lerman, Christopher Beauchamp
BACKGROUND: Endoprostheses using principles of compressive osseointegration have shown good survivorship in several studies involving the lower extremity; however, no series to our knowledge have documented the use of this technology in the management of massive bone loss in the upper limb. QUESTIONS/PURPOSES: (1) What proportion of upper extremity implants using compressive osseointegration fixation principles achieved durable short-term fixation, and what were the modes of failure? (2) What surgical complications resulted from reconstruction using this technique? METHODS: A multiinstitutional retrospective review identified nine patients (five women; four men) who underwent 13 endoprosthetic replacements between 2003 and 2014 using compressive osseointegration (Compliant(®) Pre-stress Device [CPS]; Biomet Inc, Warsaw, IN, USA) in the upper extremity, including two proximal humeri, two humeral diaphyses, seven distal humeri, and two proximal ulna...
February 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28155834/variation-in-the-posterior-condylar-angle
#14
Łukasz Cielmski, Damian Kusz, Michał Wójcik, Jakub Kamiński, Marcin Kusz
BACKGROUND: Clinical success of TKR depends to a large extent on the correct positioning of the implants. The femur cut is usually made in 3° of external rotation relative to the posterior aspect of the femoral condyles, which is a typical value of the Posterior Condylar Angle (PCA). The aim of this study was to assess variation in the PCA and to identify possible correlations between the value of the PCA and the following parameters: gender, body side, body height and weight (BMI). MATERIAL AND METHODS: The study group comprised 75 patients who underwent an Angio-CT study between 2012 and 2014 due to a suspected vascular disorder...
November 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28154297/outcomes-of-endovascular-repair-of-aortoiliac-aneurysms-and-analyses-of-anatomic-suitability-for-internal-iliac-artery-preserving-devices-in-japanese-patients
#15
Nathan K Itoga, Naoki Fujimura, Keita Hayashi, Hideaki Obara, Hideyuki Shimizu, Jason T Lee
BACKGROUND: Understanding that the common iliac arteries (CIA) are shorter in Asian patients, we investigated whether this anatomic difference affects the clinical outcomes of internal iliac artery (IIA) exclusion during endovascular aneurysm repair (EVAR) of aortoiliac aneurysm and thus limits the use of IIA-preserving devices in Japanese patients.Methods and Results:From 2008 to 2014, 69 Japanese patients underwent EVAR of aortoiliac aneurysms with 53 unilateral and 16 bilateral IIA exclusions...
February 2, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28144690/-on-the-history-of-cementless-implants-in-extremity-surgery
#16
Pavel Dufek
The aim of implantation of cementless hip prostheses is vital ingrowth of bone into the structured metal surface of the implant. Since the 1960s several implants with surfaces made of cobalt-based alloys have been produced for this purpose. In the 1980s a novel hip endoprosthesis with a spongiosa-metal surface was introduced. The three-dimensional ingrowth of bone tissue into the structured surface of the implant could be demonstrated both histologically and using scanning electron microscopy (SEM). These implants made of cobalt-based alloys can also be used in endo-exo prostheses...
January 31, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28126884/pet-mr-imaging-in-the-presence-of-metal-implants-completion-of-the-attenuation-map-from-pet-emission-data
#17
Niccolo Fuin, Stefano Pedemonte, Onofrio Antonio Catalano, David Izquierdo-Garcia, Andrea Soricelli, Marco Salvatore, Keith Heberlein, Jacob M Hooker, Koen Van Leemput, Ciprian Catana
We present a novel technique for accurate whole body attenuation correction (AC) in the presence of metallic endoprosthesis, on integrated non-time-of-flight (non-TOF) PET/MR imaging scanners. The proposed implant PET-based attenuation map completion (IPAC) method performs a joint reconstruction of radioactivity and attenuation from the emission data to determine the position, shape and linear attenuation coefficient (LAC) of metallic implants. METHODS: The initial estimate of the attenuation map is obtained using the MR Dixon-method currently available on the Siemens Biograph mMR scanner...
January 26, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28115800/a-3%C3%A2-year-minimum-follow-up-of-endoprosthetic-replacement-for-distal-femoral-fractures-an-alternative-treatment-option
#18
A Atrey, N Hussain, O Gosling, P Giannoudis, A Shepherd, S Young, J Waite
INTRODUCTION: Although the use of an endoprosthesis for distal femoral fractures remains a valid treatment option the widespread use is in its infancy. METHODOLOGY: In this retrospective case series, we review cases of distal femoral fracture treated with endoprosthetic replacement (EPR). The outcomes we assessed were the time to start mobilising, the time to discharge, morbidity and mortality as well as an Oxford knee score to assess pain and function and also the early survivorship...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28105636/cost-utility-of-osteoarticular-allograft-versus-endoprosthetic-reconstruction-for-primary-bone-sarcoma-of-the-knee-a-markov-analysis
#19
Robert J Wilson, Lina M Sulieman, Jacob P VanHouten, Jennifer L Halpern, Herbert S Schwartz, Clinton J Devin, Ginger E Holt
BACKGROUND: The most cost-effective reconstruction after resection of bone sarcoma is unknown. The goal of this study was to compare the cost effectiveness of osteoarticular allograft to endoprosthetic reconstruction of the proximal tibia or distal femur. METHODS: A Markov model was used. Revision and complication rates were taken from existing studies. Costs were based on Medicare reimbursement rates and implant prices. Health-state utilities were derived from the Health Utilities Index 3 survey with additional assumptions...
March 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28102165/occupational-activity-in-patients-10-years-after-hip-replacement-surgery
#20
Teresa Pop, Ewelina Czenczek-Lewandowska, Bogumił Lewandowski, Justyna Leszczak, Justyna Podgórska-Bednarz, Joanna Baran
BACKGROUND: Advanced hip osteoarthritis requires total joint replacement surgery to improve daily activity, including occupational activity. The purpose of this study was to evaluate employment status among patients 10 years after hip replacement surgery. MATERIAL AND METHODS: A total of 63 patients who underwent total hip replacement surgery at the Department of Orthopedics and Traumatology between 2003 and 2005 were enrolled in the study. At the time of the study (2014), all patients from the study group were of working age...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
keyword
keyword
68299
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"