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https://www.readbyqxmd.com/read/28411526/endovascular-repair-of-a-ruptured-thoracic-aortic-dissection-with-a-right-sided-aortic-arch-a-case-report
#1
Jeremy L Irvan, James R Elmore, Sarah L Flora, Evan J Ryer
BACKGROUND: Emergency treatment of complex aortic pathology is challenging in the setting of a right-sided aortic arch. We report the successful treatment of a ruptured thoracic aortic aneurysm (TAA) in the setting of a Stanford type B aortic dissection (TBAD) and right-sided aortic arch. PRESENTATION OF CASE: The patient is a 66-year-old male with chronic kidney disease (CKD) admitted with right sided chest pain and hypotension. Computed tomography angiography (CTA) revealed a 5cm ruptured TAA in the setting of a TBAD and right-sided aortic arch...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28390287/influence-of-the-fixation-region-of-a-press-fit-hip-endoprosthesis-on-the-stress-strain-state-of-the-bone-implant-system
#2
Ievgen Levadnyi, Jan Awrejcewicz, Márcio Fagundes Goethel, Alexander Loskutov
Although significant progress has been made in the development of total hip replacement, behaviour of the femoral component of an endoprosthesis in relation to the type of its fixation in the bone is still not fully understood. In this paper, behaviour of the femoral bone and the stem prosthesis is studied taking into account different types of prosthesis fixation in the medullary canal of the femur under the action of functional loads. For an analysis, a three-dimensional model of a femur has been developed based on the results of a computed tomography...
April 2, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28385944/the-stability-of-the-hip-after-the-use-of-a-proximal-femoral-endoprosthesis-for-oncological-indications-analysis-of-variables-relating-to-the-patient-and-the-surgical-technique
#3
E R Henderson, B J Keeney, E Pala, P T Funovics, W C Eward, J S Groundland, L K Ehrlichman, S S E Puchner, B E Brigman, J E Ready, H T Temple, P Ruggieri, R Windhager, G D Letson, F J Hornicek
AIMS: Instability of the hip is the most common mode of failure after reconstruction with a proximal femoral arthroplasty (PFA) using an endoprosthesis after excision of a tumour. Small studies report improved stability with capsular repair of the hip and other techniques, but these have not been investigated in a large series of patients. The aim of this study was to evaluate variables associated with the patient and the operation that affect post-operative stability. We hypothesised an association between capsular repair and stability...
April 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28383848/-how-i-treat%C3%A2-a-funnel-chest-with-computer-aided-design-cad
#4
N Wirtzfeld, J-P Chavoin, C Denoël
The contribution of computing in the management of patients with pectus excavatum has greatly improved the aesthetic result of the reconstruction endoprosthesis. Computer aided design (CAD) enables the design of implants perfectly suited to the deformation of the patient and avoids approximations of the traditional technique of plaster mold. Although this technique is applicable in many areas, this article will only deal with pectus excavatum.
October 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28374713/-the-influence-of-potassium-orotate-on-neocollagenogenesis-in-implantation-of-polypropylene-endoprosthesis-and-polypropylene-combined-with-polylactic-acid-endoprosthesis
#5
S V Ivanov, V A Lazarenko, I S Ivanov, I P Parfenov, A V Tsukanov, D V Tarabrin, E G Ob''edkov
AIM: To study neocollagenogenesis after implantation of polypropylene endoprosthesis and polypropylene combined with polylactic acid endoprosthesis on background of «potassium orotate» administration. MATERIAL AND METHODS: We used two different types of endoprosthesis in the experiment. The first type was made of just polypropylene, the second type was made of polypropylene combined with polylactic acid. Histological examination was performed using polarizing microscopy...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28361217/the-push-through-total-femoral-prosthesis-offers-a-functional-alternative-to-total-femoral-replacement-a-case-series
#6
Jelle Gorter, Joris J W Ploegmakers, Bas L E F Ten Have, Hendrik W B Schreuder, Paul C Jutte
PURPOSE: Oncologic resections or complications of segmental femoral prostheses can result in severe bone loss of the femur for which a total femoral prosthesis (TFP) is required. This study assesses whether the loss of stability and function caused by the loss of muscle attachments can be improved by using a push-through total femoral endoprosthesis (PTTF), because it saves parts of the femur and its muscle attachments. METHODS: In this retrospective case series, ten patients aged 25-77 (mean 54) who received a PTTF between 2005 and 2014 were included for baseline, complications and survival analysis with a mean follow-up of 5...
March 30, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28335703/corrigendum
#7
(no author information available yet)
Holden A, Merrilees S, Buckley B, et al. First-in-human experience with the Gore balloon-expandable covered endoprosthesis in iliac artery occlusive disease. J Endovasc Ther. 2017;24:11-18. doi: 10.1177/1526602816680570 .
April 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28318830/long-term-outcome-of-the-gore-excluder-aaa-endoprosthesis-for-treatment-of-infrarenal-aortic-aneurysms
#8
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
#9
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...
April 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28265740/reconstruction-with-scapular-hemiarthroplasty-endoprosthesis-after-scapulectomy-for-malignant-tumour
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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...
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
#20
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
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