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https://www.readbyqxmd.com/read/29785392/periosteal-pseudotumor-in-complex-total-knee-arthroplasty-resembling-a-neoplastic-process
#1
Madhav Chowdhry, Matthew V Dipane, Edward J McPherson
This case report describes in detail an erosive distal diaphyseal pseudotumor that occurred 6 years after a complex endoprosthetic hinge total knee arthroplasty (TKA). A female patient had conversion of a knee fusion to an endoprosthetic hinge TKA at the age of 62. At her scheduled 6-year follow-up, she presented with mild distal thigh pain and radiographs showing a 6-7 cm erosive lytic diaphyseal lesion that looked very suspicious for a neoplastic process. An en bloc resection of the distal femur and femoral endoprosthesis was performed...
May 18, 2018: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29778615/explanting-the-nellix-endovascular-aortic-sealing-endoprosthesis-for-proximal-aortic-neck-failure
#2
Cheong Jun Lee, Robert Cuff
Open conversion following endovascular aortic repair (EVAR) has inherent challenges particular to the device being explanted. The Nellix endograft is unlike any other device as it utilizes polymer filling of endobags within the aorto-iliac lumen to seal the AAA sac; a developing concept known as endovascular aortic sealing (EVAS). Conversion to open repair of AAA treated with the Nellix endograft have rarely been discussed. Explants that have been previously reported were for graft infection. We present two Nellix graft explants that were required for device migration and subsequent development of a type IA endoleak...
May 17, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29778608/technical-success-and-long-term-results-with-excluder-c3-endoprosthesis-in-narrow-aortic-biforcations-first-italian-multicentre-experience
#3
Gian Franco Veraldi, Luca Mezzetto, Filippo Vaccher, Lorenzo Scorsone, Stefano Bonvini, Igor Raunig, Valentina Wassermann, Sebastiano Tasselli
PURPOSE: This study aims at evaluating technical success and long-term results using Gore Excluder/C3 endoprosthesis in patients with narrow aortic bifurcation (NAB, inner-inner aortic diameter <18mm). METHODS: Clinical and anatomical data were collected retrospectively from patients treated in two high-volume Italian vascular centres between 2005 and 2017. A total of 1325 EVAR procedures were performed: 195 involved Excluder/C3 Gore endoprosthesis. 141 patients had a regular aortic bifurcation (RAB, maximum inner-inner diameter ≥ 18mm), while 54 presented NAB (< 18mm)...
May 17, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29778124/paraprosthetic-complications-after-endoprosthesis-replacement-of-pelvis-joint-with-implants
#4
Shalginbay A Baimagambetov, Serik S Balgazarov, Zhanatay K Ramazanov, Yelena A Belan, Ruslan S Abilov, Alexey A Dolgov, Amangol S Balgazarov
PURPOSE: The purpose of the paper is shaping of ideas about possible ways of decreasing complications of the analyzed types of operations and identification of opportunities of the impact on the socio-economic environment among the Afro-American population of USA. The paper demonstrates that the issue of coxofemoral prosthesis is not only a purely medical but also a social problem. In particular, availability of timely aid, as well as insurance in the form of surgery, refer to relevance of the range of problems...
June 2018: Journal of the National Medical Association
https://www.readbyqxmd.com/read/29775976/-are-there-any-differences-in-quality-or-complication-rate-in-total-knee-arthroplasty-after-establishing-a-centre-for-endoprosthesis
#5
Muzaffer Düzgünoglu, Wolfgang Hönle, Alexander Scheller, Alexander Schuh
BACKGROUND: The aim of the study is to show whether there are any changes in quality or incidence of complications in total knee arthroplasty (TKA) after establishing a centre for endoprothesis (EPZ). MATERIAL AND METHODS: We conducted a retrospective study comparing 100 TKAs one year before establishing an EPZ (Group I) with 100 TKAs one year after establishing an EPZ (group II). Data were collected by analysing our electronic documentation system, and the report of the rehabilitation hospital...
May 18, 2018: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29772314/urgent-use-of-gore-excluder-iliac-branch-endoprosthesis-ibe-with-left-transaxillary-approach-for-preservation-of-the-residual-hypogastric-artery-a-case-series
#6
D'Oria Mario, Chiarandini Stefano, Pipitone Marco, Calvagna Cristiano, Riccitelli Francesco, Rotelli Alice, Zamolo Francesca, Griselli Filippo
Preservation of the residual hypogastric artery (HGA) in patients with previous endovascular aortic aneurysm repair (EVAR) may require complex operative strategies. We report an alternative technique to preserve the residual HGA with the Gore Excluder Iliac Branch endoprosthesis (IBE) in urgent situations. MethodsWe report the case of two high-risk patients (unfit for open surgery), with previous EVAR and exclusion of one HGA, treated in emergency setting. Both patients met the anatomical requirements for Gore IBE use...
May 14, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29757367/successful-total-endovascular-repair-of-a-giant-salmonella-infected-painful-thoraco-abdominal-aortic-pseudoaneurysm
#7
Nellie Della Schiava, Matthieu Arsicot, Mathias Montveneur, Antoine Millon
Endovascular approach is now a safe and effective technique for the elective treatment of a thoraco-abdominal aneurysm. This technique has significantly reduced the morbi-mortality for elective surgery. Moreover, it can permit to treat patients with a high surgical risk who are not eligible for open surgery. The permanent availability of endovascular material opens the door for treating a complex emergency thoraco-abdominal aneurysm. Here, we present the case of an 81-year-old man who had a rapidly evolving salmonella-infected aortic thoraco-abdominal Type IV pseudoaneurysm...
May 10, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29756501/unrecoverable-bi-products-of-drilling-titanium-alloy-and-tantalum-metal-implants-a-pilot-study
#8
Paweł Skowronek, Paweł Olszewski, Wojciech Święszkowski, Marek Synder, Marcin Sibiński, Jacek Mazek
BACKGROUND: Trabecular metal implants with a porous architecture that allows for the incorporation of bone into the implant during healing are gaining popularity in alloplastic revision procedures. The bi-products of drilling titanium alloy (Ti) and tantalum (Ta) implants have not been previously assessed. METHODS: Four holes were drilled in each of two spatially porous trabecular implants, one Ta and the other Ti alloy (Ti-6Al-7Nb), for this pilot in vitro study...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29701421/rapid-pacing-for-thoracic-endovascular-aortic-repair-a-case-report
#9
Hugo Silva, Andreia Fernandes, João Rodrigues, Daniel Brandão, Manuela Vieira, Catarina Celestino
INTRODUCTION: Endovascular aortic interventions are suitable alternatives to open surgery, being less invasive and having lower mortality and complications. Accurate positioning of the stent graft is a critical point because of systolic thrush. Techniques used to prevent it include pharmacological (antihypertensive drugs, nitroglycerin, adenosine) and mechanical methods (temporary caval occlusion by balloon). Rapid Right Ventricular Pacing (RRVP) is an emerging alternative with good patient tolerance and low level of complications...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701395/elective-2nd-stage-tevar-to-complete-frozen-elephant-trunk-in-the-surgical-correction-of-complex-multisegmental-pathology-of-the-thoracic-aorta
#10
Álvaro Laranjeira Santos, António Cruz Tomás, Daniela Varela-Afonso, Jorge Pinheiro Santos, José Fragata
INTRODUCTION: Classical conventional surgery to treat multi-segmental thoracic aortic disease in two operative stages, sternotomy and left thoracotomy, is associated with significant mortality and complications. The Frozen Elephant Trunk (FET) associated with an endovascular procedure (TEVAR) allows an extensible and simplified surgical approach of the descending and thoracoabdominal aorta without increasing the risk. METHODS: Retrospective study of 8 patients (pts), 5 males, mean age 67...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701386/simplified-technique-for-aortic-arch-replacement-in-patients-at-high-risk-for-frozen-elephant-trunk
#11
Álvaro Laranjeira Santos, António Cruz Tomás, Jorge Pinheiro Santos, Daniela Varela-Afonso, José Fragata
INTRODUCTION: Surgical approach of multisegmental pathology of the thoracic aorta, namely aortic arch / descending aorta is challenging. The Frozen Elephant Trunk (FET) has good results, with acceptable risk. However, in the subgroup of patients (pts) older than 75 years and with important comorbidities, the surgical risk is very high. OBJECTIVES: Review short-term results of this original, simplified and potentially hybrid technique developed in our Department for this subgroup of patients...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701379/which-aneurysm-characteristics-predict-evar-nonsuccess
#12
Pedro Pinto Sousa, Pedro Brandão, Alexandra Canedo
INTRODUCTION: Hostile anatomic characteristics in patients undergoing endovascular abdominal aortic aneurysm repair (EVAR) may lead to technical nonsuccess of the procedure, late complications, reintervention or death. The authors analyzed anatomical abdominal aortic aneurysm specific considerations so as technical endoprosthesis implantation and correlate them with endoleak development and postoperative survival. METHODS: Authors retrospectively reviewed all consecutive, elective, EVAR's that occurred between 2010 and 2016, with available data, at one institution for abdominal, infra renal, aortic aneurysms...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701357/frozen-elephant-trunk-with-e-vita-open-hybrid-prosthesis-for-surgical-correction-of-multisegmental-thoracic-aortic-pathology-review-of-results
#13
António Cruz Tomás, Álvaro Laranjeira Santos, Jorge Pinheiro Santos, Daniela Varela-Afonso, José Fragata
INTRODUCTION: The Frozen Elephant Trunk (FET) surgery allows correction of ascending, arch and proximal descending aortic pathology, using a hybrid prosthesis at the same time. It is a complex intervention and requires a multidisciplinary team that, besides scheduling and performing the surgery, accompanies the patient (pt) throughout the postoperative period. OBJECTIVES: To review short and medium term clinical results with this technique. METHODS: Between January 2010 and September 2017, we operated 34 patients (pts) using FET...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701345/emergency-nightmares-rupture-of-type-iii-thoracoabdominal-aneurysm
#14
Marina Dias-Neto, José Fernando Ramos, João Rocha Neves, Pedro Almeida, Augusto Rocha E Silva, José Fernando Teixeira
Introduction The rupture of thoracoabdominal aneurysms (rTAA) represents one of the major challenges to the vascular surgeon. Recent developments in the endovascular armamentarium and the high mortality from open surgery make endovascular treatment an attractive option. Devices to be used in an emergency environment should be "off-the-shelf" and include, among others, EVAR snorkel/chimney and branched endoprosthesis (T-branch, Cook®). METHODS: We describe the case of a 70-year-old patient who was admitted to the emergency room due continuous low back pain with 3 days of evolution...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29669676/evaluation-of-absorbent-versus-conventional-wound-dressing
#15
Jan Bredow, Katharina Hoffmann, Johannes Oppermann, Martin Hellmich, Peer Eysel, Kourosh Zarghooni
BACKGROUND: Lower-limb endoprosthetic operations and spinal operations are among the more common types of orthopedic procedures. Postoperative woundhealing disturbances and infections can lead to longer periods of hospital stay and recovery as well as to higher morbidity and mortality. METHODS: 209 patients who had been judged to have an indication for a primary knee or hip endoprosthesis or for a primary spinal operation were included in this randomized trial (ClinicalTrials...
March 30, 2018: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29668473/the-history-of-bone-tumour-treatment-and-the-state-of-the-art-in-vienna
#16
Rainer Kotz
PURPOSES: Bone tumours have been a tragedy for the patient in any time period. In the majority of the cases it occurs in children or young adults. In the past the affected limbs could not be spared and the overall prognosis was poor. METHODS: Chemotherapy successfully introduced for the purpose of overcoming the poor overall prognosis (Rosen and Jaffe) and tumour prostheses were invented for the purpose of salvaging the affected limbs (Marcove, Scales, Campanacci, Sivas, Salzer)...
December 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/29664225/improvement-of-dose-calculation-in-radiation-therapy-due-to-metal-artifact-correction-using-the-augmented-likelihood-image-reconstruction
#17
Christian Ziemann, Maik Stille, Florian Cremers, Thorsten M Buzug, Dirk Rades
BACKGROUND: Metal artifacts caused by high-density implants lead to incorrectly reconstructed Hounsfield units in computed tomography images. This can result in a loss of accuracy in dose calculation in radiation therapy. This study investigates the potential of the metal artifact reduction algorithms, Augmented Likelihood Image Reconstruction and linear interpolation, in improving dose calculation in the presence of metal artifacts. MATERIALS AND METHODS: In order to simulate a pelvis with a double-sided total endoprosthesis, a polymethylmethacrylate phantom was equipped with two steel bars...
April 17, 2018: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29659738/disseminated-infection-of-encephalitozoon-cuniculi-associated-with-osteolysis-of-hip-periprosthetic-tissue
#18
Marta Kicia, Maria Wesolowska, Zaneta Kopacz, Martin Kvác, Bohumil Sak, Magdalena Sokulska, Kamil Cebulski, Andrzej B Hendrich, Andrzej Pozowski
Background: Among patients with hip joint endoprosthesis, periprosthetic osteolysis is the most common complication following primary arthroplasty, and subsequent implant loosening is the leading cause of arthroplasty revision. Causes of stability loss, though not always evident, can be mechanical, allergic, or infectious (bacterial and fungal agents) in nature. Microsporidia, widespread opportunistic fungal pathogens that infect most human tissues, are a potential infectious cause of stability loss...
April 5, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29652321/-cytokines-in-surgery-for-pulmonary-tuberculosis
#19
S A Belov, A A Grigoryuk
AIM: To evaluate the effect of various methods of thoracoplasty on local production of cytokines in patients with pulmonary tuberculosis. MATERIAL AND METHODS: The main group consisted of patients after traditional thoracoplasty. Thoracoplasty was compared with endoprosthesis of polypropylene mesh 'Surgipro - SPMM-149'. TNF-α and IL-10 cytokines in exudate from surgical area were measured by using of solid-phase enzyme immunoassay (OOO 'Vector-Best', Russia). RESULTS: It was revealed that local production of pro- and anti-inflammatory cytokines is more pronounced after thoracoplasty with polypropylene mesh 'Surgipro - SPMM-149'...
2018: Khirurgiia
https://www.readbyqxmd.com/read/29589498/the-use-of-a-non-invasive-extendable-prosthesis-at-the-time-of-revision-arthroplasty
#20
M M Gilg, C L Gaston, L Jeys, A Abudu, R M Tillman, J D Stevenson, R J Grimer, M C Parry
Aims The use of a noninvasive growing endoprosthesis in the management of primary bone tumours in children is well established. However, the efficacy of such a prosthesis in those requiring a revision procedure has yet to be established. The aim of this series was to present our results using extendable prostheses for the revision of previous endoprostheses. Patients and Methods All patients who had a noninvasive growing endoprosthesis inserted at the time of a revision procedure were identified from our database...
March 1, 2018: Bone & Joint Journal
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