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https://www.readbyqxmd.com/read/28532493/distal-femoral-replacement-with-the-mml-system-a-single-center-experience-with-an-average-follow-up-of-86%C3%A2-months
#1
Andreas Toepfer, Norbert Harrasser, Paul-Ruben Schwarz, Florian Pohlig, Ulrich Lenze, Heinrich M L Mühlhofer, Ludger Gerdesmeyer, Ruediger von Eisenhart-Rothe, Christian Suren
BACKGROUND: The aim of this study was to compare the functional outcomes and complication rates after distal femoral replacement (DFR) performed with the modular Munich-Luebeck (MML) modular prosthesis (ESKA/Orthodynamics, Luebeck, Germany) in patients being treated for malignant disease or failed total knee arthroplasty. METHODS: A retrospective review of patient charts and a functional investigation (involving Musculoskeletal Tumor Society Score [MSTS], American Knee Society Score [AKSS], Oxford Knee Score [OKS], Western Ontario and McMaster Universities Osteoarthritis Index [WOMAC], Toronto Extremity Salvage Score [TESS], the 12-Item Short-Form [SF-12] Health Survey, and a failure classification system developed by Henderson et al...
May 22, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28529867/efficacy-of-antibiotic-suppressive-therapy-in-patients-with-a-prosthetic-joint-infection
#2
Marjan Wouthuyzen-Bakker, Jasperina M Nijman, Greetje A Kampinga, Sander van Assen, Paul C Jutte
Introduction: For chronic prosthetic joint infections (PJI), complete removal of the infected prosthesis is necessary in order to cure the infection. Unfortunately, a subgroup of patients is not able to undergo a revision surgery due to high surgical risk. Alternatively, these patients can be treated with antibiotic suppressive therapy (AST) to suppress the infection. Aim: To evaluate the efficacy and tolerability of AST. Methods: We retrospectively collected data (period 2009-2015) from patients with a PJI (of hip, knee or shoulder) who were treated with AST at the University Medical Center Groningen, the Netherlands...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28507643/imaging-of-complications-after-limb-prostheses-implantation-in-children-with-bone-tumors
#3
Beata Iwanowska, Hanna Brągoszewska, Jarosław Mądzik, Sylwia Szkudlińska-Pawlak, Izabela Kopyś-Wiszniewska, Małgorzata Jastrzębska, Barbara Kowalska, Maria Uliasz, Monika Bekiesińska-Figatowska
BACKGROUND: Tumors of the developmental age are an important problem in clinical practice. Primary bone tumors constitute 1-1.5% of all tumors, and 7% of all tumors diagnosed in the developmental age. The aim of the study was to assess the capabilities of imaging methods in diagnosing complications of limb endoprostheses in children with osteoarticular tumors. MATERIAL/METHODS: We included 155 patients with limb endoprostheses, aged 7-26 years. There were 113 patients with knee prostheses, 1 patient with bilateral knee prostheses, 16 patients with shoulder prostheses, 14 patients with hip prostheses, 11 patients with hip and knee prostheses, and 1 patient with a femoral prosthesis...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28500904/endometrial-adenocarcinoma-recurrence-presenting-with-tibial-metastasis-report-of-a-case
#4
Mehmet Salih Söylemez, Bahattin Kemah, Umut Perçem Orhan Söylemez, Bülent Kılıç, Korhan Ozkan
INTRODUCTION: Metastatic bone disease at extremities is mostly associated with lung, liver, prostat, thyriod or breast malignancies. There for surgeons generally tends to seek for a primary tumor originating from these organs. Herein a case of endometrial adenocarcinoma recurrence that presented with symptoms of tibial pain is described. PRESENTATION OF CASE: 59 year-old woman was admitted to our orthopaedic oncology unit with pain, swelling and tenderness at right cruris for two weeks without any trauma history...
April 18, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28476105/case-of-disseminated-histoplasmosis-in-a-hiv-infected-patient-revealed-by-nasal-involvement-with-maxillary-osteolysis
#5
A C Lehur, M Zielinski, J Pluvy, V Grégoire, S Diamantis, A Bleibtreu, C Rioux, A Picard, D Vallois
BACKGROUND: Disseminated Histoplasmosis (DH) is a rare manifestation of Acquired Immune Deficiency Syndrome (AIDS) in European countries. Naso-maxillar osteolysis due to Histoplasma capsulatum var. capsulatum (Hcc) is unusual in endemic countries and has never been reported in European countries. Differential diagnoses such as malignant tumors, cocaine use, granulomatosis, vasculitis and infections are more frequently observed and could delay and/or bias the final diagnosis. CASE PRESENTATION: We report the case of an immunocompromised patient infected by Human Immunodeficiency Virus (HIV) with naso-maxillar histoplasmosis in a non-endemic country...
May 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28469829/combination-prosthetic-design-providing-a-superior-retention-for-mid-facial-defect-rehabilitation-a-case-report
#6
Supassra Nilanonth, Prana Shakya, Natdhanai Chotprasert, Theerathavaj Srithavaj
Large maxillofacial defects from malignant tumor treatment are rarely rehabilitated by surgical reconstruction alone. Ameloblastic carcinoma, a rare aggressive odontogenic malignant tumor, requires wide surgical excision to gain a tumor-free margin. In the post-surgical defect, prosthetic rehabilitation is the treatment of choice to restore function and esthetics. Moreover, an intra-oral prosthesis such as an obturator restores speech, mastication and deglutition. Retention of the obturator is a major problem while rehabilitating large defects...
April 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28458822/an-original-technique-of-venous-autoplasty-after-duodenopancreatectomy-for-tumors-involving-the-infrarenal-inferior-vena-cava
#7
Bertrand Le Roy, Emmanuel Buc, Constance Hordonneau, Julie Veziant, Denis Pezet, Johan Gagnière
Tumor involvement of the inferior vena cava (IVC) by hepatobiliary, pancreatic or duodenal malignancies can compromise adequate resection. However, radical resection with negative histological margins remains the only chance of cure. Various techniques are used for venous reconstruction, using a prosthetic graft interposition in most of the cases. However, in case of associated digestive resections, such as pancreaticoduodenectomy, postoperative complications can be responsible for prosthesis infection and related vascular complications...
February 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28456369/effects-of-sociodemographic-treatment-variables-and-medical-characteristics-on-quality-of-life-of-patients-with-maxillectomy-restored-with-obturator-prostheses
#8
Ioli Ioanna Artopoulou, Evangelos C Karademas, Nikolaos Papadogeorgakis, Ioannis Papathanasiou, Gregory Polyzois
STATEMENT OF PROBLEM: Restoration of maxillary defects resulting from tumor ablative surgery presents a difficult challenge, with both functional and esthetic issues. Whether rehabilitation with an obturator prosthesis could significantly contribute to improved quality of life in patients with maxillary resection has been scarcely studied, with relatively small study samples. PURPOSE: The purpose of this survey study was to assess the overall functioning of the obturator prosthesis and the effect of specific sociodemographic, medical, and treatment variables on obturator functioning and quality of life in patients with maxillectomy...
April 26, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28455561/radiographic-assessment-of-distal-femur-cemented-stems-in-tumor-endoprostheses
#9
R E Turcotte, N A Stavropoulos, J Toreson, M Alsultan
BACKGROUND: Distal femoral endoprosthesis (DFE) has become the optimal method of reconstruction in the skeletally mature patients treated for malignant bone tumor. Albeit literature has reported wide range of aseptic loosening in cemented components (6-32%), few authors showed that cement was not detrimental to long-term success of primary distal femoral implants possibly relating to cementing technique. METHODS: A series of consecutive of DFE (MRS and GMRS, Styker Orthopaedics, Mahwah, NJ) was retrospectively reviewed for evidence of loosening on plain radiographs...
April 28, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28451038/-myxoma-involving-posterolateral-leaflet-about-a-case
#10
Fouad Nya, Abdessamad Abdou, Mehdi Bamous, Younes Moutakiallah, Noureddine Atmani, Aniss Seghrouchni, Mahdi Aithoussa, Abdellatif Boulahya
Cardiac myxomas are the most common type of primary cardiac tumors. They mainly affect the interatrial septum and exceptionally the heart valves. Surgical excision remains the only therapeutic alternative. We here report the case of a 69-year old patient with no significant pathological history suffering from NYHA class II-III dyspnea associated with lipothymia. Transthoracic echocardiography showed a tight calcified aortic narrowing with aortic valve gradient of 58 mmHg. A sessile mass of 15mm diameter inserted into the posterolateral leaflet, without stenosis or mitral regurgitation evoking an atypical localization of myxomaor or fibroelastoma was detected at the level of the mitral valve...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28435380/a-comparative-assessment-of-prosthetic-outcome-on-enucleation-and-evisceration-in-three-different-etiological-eye-defects-a-case-series
#11
Nafij Bin Jamayet, John Kariuki Kirangi, Adam Husein, Mohammad Khursheed Alam
Enucleation and evisceration are the most common surgical procedures that are performed to manage tumor, trauma, and infection. Given the consequences of surgical intervention, the conditions of the remaining eye socket may affect future prosthetic rehabilitation. A custom-made ocular prosthesis can be used to help restore the esthetics and functional defects and to improve the quality of life of patients with such conditions. An assessment must be performed on the prosthetic outcome before rehabilitation. The etiology of defect, type of surgery, condition of the remaining socket, and patient's age should all be considered...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28409131/hip-disarticulation-case-series-analysis-and-literature-review
#12
Diogo Lino Moura, António Garruço
OBJECTIVE: To present a retrospective study of 16 patients submitted to hip disarticulation. METHODS: During the period of 16 years, 16 patients who underwent hip disarticulation were identified. All of them were studied based on clinical records regarding the gender, age at surgery, disarticulation cause, postoperative complications, mortality rates and functional status after hip disarticulation. RESULTS: Hip disarticulation was performed electively in most cases and urgently in only three cases...
March 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28405580/temporomandibular-joint-reconstruction-with-alloplastic-prosthesis-the-outcomes-of-four-cases
#13
Jung-Hyun Park, Eun Jo, Hoon Cho, Hyung Jun Kim
BACKGROUND: The purpose of this study is to evaluate the outcomes of four patients receiving stock Biomet TMJ prosthesis for reconstruction of the TMJs. METHODS: TMJ reconstruction with stock Biomet TMJ prosthesis was performed in four patients who had joint damages by trauma, tumor, resorption, and ankylosis, which represent the indications of alloplastic prosthesis. RESULTS: Loss of condyle from trauma and resorption of joint are good indications for prosthesis, but the patients should be informed about limitation of jaw movement...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28388595/customized-knee-prosthesis-in-treatment-of-giant-cell-tumors-of-the-proximal-tibia-application-of-3-dimensional-printing-technology-in-surgical-design
#14
Wenbin Luo, Lanfeng Huang, He Liu, Wenrui Qu, Xin Zhao, Chenyu Wang, Chen Li, Tao Yu, Qing Han, Jincheng Wang, Yanguo Qin
BACKGROUND We explored the application of 3-dimensional (3D) printing technology in treating giant cell tumors (GCT) of the proximal tibia. A tibia block was designed and produced through 3D printing technology. We expected that this 3D-printed block would fill the bone defect after en-bloc resection. Importantly, the block, combined with a standard knee joint prosthesis, provided attachments for collateral ligaments of the knee, which can maintain knee stability. MATERIAL AND METHODS A computed tomography (CT) scan was taken of both knee joints in 4 patients with GCT of the proximal tibia...
April 7, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28383117/an-alternative-prosthetic-approach-for-rehabilitation-of-two-edentulous-maxillectomy-patients-clinical-report
#15
Murat Yenisey, Şafak Külünk, Necati Kaleli
Obturator prosthesis is a common treatment method for maxillectomy patients for maintaining their oronasal separation and resuming their social lives. After tumor resection, the remaining anatomical structures have a significant effect on prosthesis retention. The present study describes the rehabilitation of two maxillectomy patients after cancer surgery using a prosthesis consisting of a denture and a special retentive obturator that is positioned in the anatomical undercuts of the nasal cavity. These patients have undergone total and subtotal maxillectomy surgery after the diagnosis of squamous cell carcinoma...
April 6, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28376828/all-polyethylene-tibial-components-in-distal-femur-limb-salvage-surgery-a-finite-element-analysis-based-on-promising-clinical-outcomes
#16
Fan Tang, Yong Zhou, Wenli Zhang, Li Min, Rui Shi, Yi Luo, Hong Duan, Chongqi Tu
BACKGROUND: Whether all-polyethylene tibial (APT) components are beneficial to patients who received distal femur limb-salvage surgery lacks high-quality clinical follow-up and mechanical evidence. This study aimed to investigate the biomechanics of the distal femur reconstructed with APT tumor knee prostheses using finite element (FE) analysis based on our previous, promising clinical outcome. METHODS: Three-dimensional FE models that use APT and metal-backed tibial (MBT) prostheses to reconstruct distal femoral bone defects were developed and input into the Abaqus FEA software version 6...
April 4, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28361217/the-push-through-total-femoral-prosthesis-offers-a-functional-alternative-to-total-femoral-replacement-a-case-series
#17
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/28355767/-effects-of-reconstruction-with-unicondylar-osteoarticular-allografts-with-or-without-prosthesis-for-bone-tumors-around-knee-joint
#18
Y S Xue, J Fu, Z Guo, Z Wang, Y J Pei, L L Dang, H B Fan
Objective: To investigate the survival rate, function outcomes, and complications after using unicondylar osteoarticular allografts with or without prosthesis to reconstruct the knee joint for tumors located in distal femoral or proximal tibial uni-condyle. Methods: Twenty-two patients who underwent unicondylar osteoarticular allografts with or without prosthesis composite reconstructions from January 2007 to December 2015 in Department of Orthopaedic Surgery of Xi Jing Hospital, the Fourth Military Medical University were retrospectively reviewed...
April 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28343825/silver-coated-megaprosthesis-of-the-proximal-tibia-in-patients-with-sarcoma
#19
Jendrik Hardes, Marcel P Henrichs, Gregor Hauschild, Markus Nottrott, Wiebke Guder, Arne Streitbuerger
BACKGROUND: Proximal tibia arthroplasty is associated with high rates of infection. This study is the largest one that has compared the infection rates with titanium vs silver-coated megaprostheses in patients treated for sarcomas. METHODS: The infection rate in 98 patients with sarcoma or giant-cell tumor in the proximal tibia who underwent placement of a titanium (n = 42) or silver-coated (n = 56) megaprosthesis (MUTARS) was assessed, along with the treatments administered for any infection...
March 1, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28245614/gene-expression-in-osteolysis-review-on-the-identification-of-altered-molecular-pathways-in-preclinical-and-clinical-studies
#20
REVIEW
Francesca Veronesi, Matilde Tschon, Milena Fini
Aseptic loosening (AL) due to osteolysis is the primary cause of joint prosthesis failure. Currently, a second surgery is still the only available treatment for AL, with its associated drawbacks. The present review aims at identifying genes whose expression is altered in osteolysis, and that could be the target of new pharmacological treatments, with the goal of replacing surgery. This review also aims at identifying the molecular pathways altered by different wear particles. We reviewed preclinical and clinical studies from 2010 to 2016, analyzing gene expression of tissues or cells affected by osteolysis...
February 25, 2017: International Journal of Molecular Sciences
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