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https://www.readbyqxmd.com/read/29333837/-biodegradable-airway-stent-for-the-treatment-of-bronchial-obstruction-in-the-child-case-report
#1
Giselle Cuestas, Verónica Rodríguez, Flavia Doormann, Patricio Bellia Munzón, Gastón Bellia Munzón
Bronchial obstruction is infrequent in the child. The main cause is malacia or benign stenosis. Management alternatives range from conservative treatment to complex surgical and/or endoscopic techniques. Placement of a stent can play a key role in situations where there is no other therapeutic option. However, the ideal stent is not yet available. In the last few years, progress has been made in the development and characterization of novel biodegradable materials in order to overcome the drawbacks of traditional stents made of silicone or metal...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29251205/novel-endovascular-approach-using-the-gore-iliac-branch-endograft-for-short-iliac-anatomy
#2
Kejia Wang, Laura Dunkley, Michael Neale
PURPOSE: To report the use of a branched iliac endograft to maintain internal iliac artery (IIA) patency in a patient with an infrarenal aortic aneurysm and short common iliac arteries (CIA). CASE REPORT: A 74-year-old man presented with an asymptomatic, fusiform, 67-mm infrarenal aortic aneurysm confirmed on computed tomography. The right CIA was funnel shaped and only 15 mm in length, providing no appropriate stent-graft landing zone. The left CIA measured 14 mm in diameter and 25 mm in length...
December 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/29249225/tranexamic-acid-in-endoprosthesis
#3
EDITORIAL
Marc Maegele
No abstract text is available yet for this article.
December 1, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29242065/preliminary-results-of-endovascular-aneurysm-sealing-from-the-multicenter-italian-research-on-nellix-endoprosthesis-irene-study
#4
Bruno Gossetti, Ombretta Martinelli, Michelangelo Ferri, Roberto Silingardi, Fabio Verzini
OBJECTIVE: Because of advances in technology and experience of the operator, endovascular aneurysm repair (EVAR) has supplanted open repair to treat abdominal aortic aneurysm (AAA). The low 30-day mortality and morbidity of EVAR make the endovascular approach particularly suitable for patients at high surgical risk. However, endoleak or endograft migration requiring secondary intervention or open surgical conversion is a limitation of EVAR. The Nellix system (Endologix, Inc, Irvine, Calif) has been designed to seal the entire AAA to overcome these limitations with EVAR...
December 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29238859/-influence-of-thermodisinfection-on-impaction-of-cancellous-bone-an%C3%A2-in-vitro-model-of-femoral-impaction-bone-grafting
#5
REVIEW
C Fölsch, A Jahnke, A Groß, G Martels, G A Krombach, M Rickert, M Kampschulte
BACKGROUND: The reconstruction of bony defects during endoprosthesis revision surgery using "impaction bone grafting" leads to the possibility of a longstanding osseous integration to achieve good clinical results. Native allogeneic cancellous bone is often used for the procedure. This study examines the influence of thermodisinfection on the impaction behaviour of cancellous bone of different geometries and on the cement distribution. METHODS: The cancellous bone was obtained from the femoral heads of 7‑month old pigs...
December 13, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29234529/the-effectiveness-of-ureteric-metal-stents-in-malignant-ureteric-obstructions-a-systematic-review
#6
REVIEW
Panagiotis Kallidonis, Dimitrios Kotsiris, Francesco Sanguedolce, Panteleimon Ntasiotis, Evangelos Liatsikos, Athanasios Papatsoris
Objective: To review the literature on the effectiveness, safety and long-term patency of ureteric metal mesh stents (MSs), as a variety of MSs have been used for managing malignant ureteric obstruction over the last three decades. Materials and methods: A systematic review using the search string; Ureter∗ AND (stent OR endoprosthesis) AND metal∗ was conducted on PubMed, Scopus, Web of science and Cochrane Library online databases in May 2016. Prospective, retrospective, and comparative studies including MSs were included...
December 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/29226200/long-term-results-of-osteoarticular-allograft-reconstruction-in-children-with-distal-femoral-bone-tumors
#7
Khodamorad Jamshidi, Mehrdad Bahrabadi, Alireza Mirzaei
Background: There is no consensus regarding the best method of reconstruction in pediatric population following the wide resection of malignant bone tumors. More exploration of the complications of osteoarticular reconstruction leads to less existing controversy of this type of reconstruction, which is the main point of this article. Methods: Long-term outcomes and complications of osteoarticular allograft reconstruction of primary distal femoral bone sarcomas in 22 children with mean age of 10...
September 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29201311/synovial-sarcoma-complicating-total-knee-arthroplasty
#8
Olga D Savvidou, George D Chloros, Panagiotis Koutsouradis, Panayiotis D Megaloikonomos, Eva Skarpidi, Panayiotis J Papagelopoulos
Synovial sarcoma is a relatively common periarticular soft tissue malignancy, occurring mostly in the extremities of younger patients. Occasionally, diversity in its clinical features may lead to misdiagnosis and inappropriate management. The authors report herein a unique case of a patient who underwent a primary total knee arthroplasty to treat osteoarthritis. During the operation, a mass was discovered but was attributed to synovitis. Biopsy revealed a rare intra-articular synovial sarcoma. The patient underwent reoperation with wide excision and endoprosthesis placement and is disease-free at the 8-year follow-up...
December 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29181955/soft-tissue-adhesion-patterns-over-trevira-tube-on-modular-endoprosthesis-for-malignant-bone-tumours-an-in-vitro-study
#9
S D’Adamio, G Cazzato, A Ziranu, A Sgambato, M A Rosa, G Maccauro
A reliable and effective technique in case of limb salvage surgery after resection of extensive bone tumors is represented by the implant of modular or custom-made megaprosthesis. Fixation of the residual surrounding soft tissue on the implant represent a challenge for the surgeon and the use of a polyethylene terephthalate (PET) tube over it, also known as Trevira, is currently a common choice for reattachment with good clinical outcomes. We compared fibroblastic cell culture potential over simple titanium coating vs titanium surrounded by Trevira and evaluated cell viability and replication at 24, 48 and 72 h using MTT cell growth assay and scanning electron microscopy to determine if there was any difference in the potential of cell growth associated to the material used...
October 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29180931/treatment-results-of-adult-patients-with-primary-bone-tumours-of-the-humerus-with-the-use-of-the-oncological-modular-endoprosthesis
#10
Tomasz Goryń, Andrzej Pieńkowski, Andrzej Komor, Wirginiusz Dziewirski, Marcin Zdzienicki, Maria Kozioł, Piotr Rutkowski
Aim of the study: Primary bone tumours are relatively rare, but their diagnosis and treatment is difficult and connected with a high risk of complications. The goal of this report is a retrospective evaluation of outcomes in patients with primary tumours of the humerus treated in our centre with the use of modular endoprosthetic reconstruction. Material and methods: Currently, surgical treatment is a standard procedure for local therapy, with wide tumour-free margin resection after a planned multidisciplinary and individualised strategy of tumour management based on the diagnostic biopsy result...
2017: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/29132328/posterior-shoulder-dislocation-with-associated-reverse-hill-sachs-lesion-treatment-options-and-functional-outcome-after-a-5-year-follow-up
#11
Markus Guehring, Simon Lambert, Ulrich Stoeckle, Patrick Ziegler
BACKGROUND: The current study describes several surgical techniques for the treatment of the reverse Hill - Sachs lesion after posterior shoulder dislocation; we also aimed to present long term results followed for a minimum of five years. METHODS: This study is a prospective case series of 17 patients who were treated in our clinic between 2008 and 2011. Patients with a defect size smaller than 25% of the articular surface were treated conservatively. An endoprosthesis of the glenohumeral joint was implanted in patients with a defect size bigger than 40%...
November 13, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29123414/low-grade-central-osteosarcoma-in-proximal-humerus-a-rare-entity
#12
Fan Tang, Li Min, Yong Zhou, Yi Luo, Chongqi Tu
Low-grade central osteosarcoma is a rare subtype of tumor with low-grade malignancy. Currently, wide resection with negative resection margin is the standard treatment for this disease. The role of neoadjuvant chemotherapy in low-grade central osteosarcoma was controversial and was mostly considered for tumors containing high-grade focal areas. Local tumor recurrences often exhibited a tumor with higher histologic grade or differentiation with the potential for metastases. In low-grade central osteosarcoma, timely wide resection after definite diagnosis can result in 5-year survival for almost 90%...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29113670/primary-arthroplasty-in-healed-osteoarticular-allograft-in-patients-with-history-of-primary-femoral-bone-tumors
#13
Bianca M Verbeek, Courtney L Kaiser, Nuno Rui Paulino Pereira, Francis J Hornicek, Kevin A Raskin, Joseph H Schwab, Santiago A LozanoCalderón
BACKGROUND: Roughly 25-35% of patients who are treated with osteoarticular allograft for primary bone sarcomas or aggressive benign bone tumors require surgery in the long-term due to degenerative changes of the articular surface of the allograft. There are three established methods of reconstruction for this complication; a total hip arthroplasty (THA) or total knee arthroplasty (TKA) in the retained osteoarticular allograft, a proximal or distal endoprosthesis after removal of the allograft, and an allograft-prosthesis composite (APC)...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29113159/treatment-of-osteosarcoma-around-the-knee-in-skeletally-immature-patients
#14
Weitao Yao, Qiqing Cai, Jiaqiang Wang, Songtao Gao
Limb sparing surgery in growing young patients with malignant tumors is difficult as invasion of the physis by the tumor or surgical resection through the metaphysis may cause significant limb discrepancy following surgery. At present, hinged tumor prosthesis or biological reconstructions are the main methods following tumor resection in these patients. The aim of the present study was to assess different procedures for the treatment of osteosarcoma around knee joints in immature patients. A retrospective study of 56 patients (<15 years old, open physis) who had been treated for osteosarcoma around the knee joint between January 2007 and December 2015 was performed...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29100185/numerical-evaluation-of-bone-remodelling-and-adaptation-considering-different-hip-prosthesis-designs
#15
Ievgen Levadnyi, Jan Awrejcewicz, José Eduardo Gubaua, Jucélio Tomás Pereira
BACKGROUND: The change in mechanical properties of femoral cortical bone tissue surrounding the stem of the hip endoprosthesis is one of the causes of implant instability. We present an analysis used to determine the best conditions for long-term functioning of the bone-implant system, which will lead to improvement of treatment results. METHODS: In the present paper, a finite element method coupled with a bone remodelling model is used to evaluate how different three-dimensional prosthesis models influence distribution of the density of bone tissue...
October 18, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29081066/long-term-outcomes-of-cement-in-cement-technique-for-revision-endoprosthesis-surgery
#16
Nicholas M Bernthal, Vishal Hegde, Stephen D Zoller, Howard Y Park, Jason H Ghodasra, Daniel Johansen, Frederick Eilber, Fritz C Eilber, Chandhanarat Chandhanayingyong, Jeffrey J Eckardt
BACKGROUND AND OBJECTIVE: Cemented endoprosthetic reconstruction after resection of primary bone sarcomas has been a standard-of-care option for decades. With increased patient survival, the incidence of failed endoprostheses requiring revision surgery has increased. Revision of cemented endoprotheses by cementing into the existing cement mantle (CiC) is technically demanding. METHODS: This is a retrospective review of our endoprosthesis database of 512 consecutive cemented endoprosthetic reconstructions performed for oncologic diagnoses between 1980 and 2014...
October 29, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29072235/reconstruction-of-lower-extremity-primary-malignant-and-metastatic-bone-tumours-with-modular-endoprosthesis
#17
H Sezgin, A Çıraklı, H Göçer, N Dabak
INTRODUCTION: This study is aimed to assess the functional results of cases with lower extremity malignant and metastatic bone tumours that were treated with modular tumour resection prostheses. MATERIALS AND METHODS: 49 patients were retrospectively examined. 27 (55.1%) patients had a primary bone tumour, and 22 (44.9%) had a metastatic bone tumour. Although most tumours located in the proximal femur were metastatic, tumours located around the knee were mostly primary malignant bone tumours...
September 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29071514/-destruction-of-the-radial-head-endoprosthesis-autologous-reconstruction-or-anconeus-arthroplasty
#18
REVIEW
K J Burkhart, F Gohlke, R Nietschke, M M Schneider, B Hollinger
BACKGROUND: Radiocapitellar arthritis or defects most often result from trauma. Most of the patients are young and have high functional demands with high load capacities. Therefore, endoprosthetic options should be postponed for as long as possible. If conservative treatment cannot relieve symptoms sufficiently, radial head preservation, resection or replacement options are at the surgeon's disposal. In early stages of radiocapitellar arthritis, radial head preservation options can be taken into account...
October 25, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29043506/fatigue-failure-of-the-cephalomedullary-nail-revision-options-outcomes-and-review-of-the-literature
#19
Adam Tucker, Michael Warnock, Sinead McDonald, Laurence Cusick, Andrew P Foster
Cephalomedullary nail (CMN) failure is a rare entity following hip fracture treatment. However, it poses significant challenges for revision surgery, both mechanically and biologically. Nail failure rates have been reported at < 2%; however, no published studies have reported revision surgery procedures and their respective outcomes. We present a regional experience, with outcomes, of the revision options. We identified 20 fatigued CMNs that underwent four different revision procedures. Mean age was 73 ± 15...
October 17, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29033156/component-fracture-in-the-kotz-modular-femoral-tibial-reconstruction-system-an-under-reported-complication
#20
Tyler M Hauer, Matthew T Houdek, Rej Bhumbra, Anthony M Griffin, Jay S Wunder, Peter C Ferguson
BACKGROUND: Primary bone tumors of the femur are commonly reconstructed using an endoprosthesis. Different modes of implant failure have been described, including structural failure; although uncommon, this may be an under-reported complication. The purpose of this study is to examine the rates and risk factors for implant fracture of the Kotz Modular Femoral Tibial Reconstruction system (KMFTR). METHODS: Two hundred twenty-one patients (95 women and 126 men) who underwent a KMFTR reconstruction were reviewed...
September 21, 2017: Journal of Arthroplasty
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