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Alexander P Decilveo, Bartlomiej W Szczech, Jacob Topfer, James C Wittig
Expandable endoprostheses have become an acceptable modality to address the issue of limb-length inequality in limb-sparing procedures for skeletally immature patients afflicted with lower extremity bone sarcomas. This study retrospectively analyzed postoperative outcomes and complications for 7 patients (8 limbs) who underwent minimally invasive or noninvasive reconstruction during a 12-year period. Musculoskeletal Tumor Society (MSTS) scores and complication rates were reported. Mean functional outcome (MSTS scores) at final follow-up was 93...
October 25, 2016: Orthopedics
Ryan A Durfee, Scott A Sabo, G Douglas Letson, Odion Binitie, David Cheong
Metastatic lesions of the acetabulum can be painful and debilitating. First-line treatment is multimodal and consists of disease-specific chemotherapy, osteoclastic inhibitors, analgesics, and radiation therapy. When these therapies fail, surgical intervention usually is indicated and varies from regional defect stabilization to large periacetabular reconstructions that are demanding procedures with high rates of complications. Percutaneous cement augmentation (acetabuloplasty) of lesions in selected patients has been explored as a less invasive method of lesional control...
October 25, 2016: Orthopedics
Tert C van Alphen, Maarten R Fechner, Jeroen M Smit, Gerrit D Slooter, Coralien L Broekhuysen
BACKGROUND: In autologous breast reconstruction, abdominal based flaps are by far the most common choice from the wide range of free flaps available. In selected cases, a laparoscopically harvested omental free flap (LHOFF) can be used. Patient satisfaction has not been reported until now. In this article, we report our experience using LHOFF in breast reconstruction including our technique, patient satisfaction, and donor/recipient site complications. PATIENTS AND METHODS: Between 2007 and 2014, six patients underwent autologous breast reconstruction with LHOFF...
October 26, 2016: Microsurgery
Taisuke Murata, Kenta Miwa, Noriaki Miyaji, Kei Wagatsuma, Tomoyuki Hasegawa, Keiichi Oda, Takuro Umeda, Takashi Iimori, Yoshitada Masuda, Takashi Terauchi, Mitsuru Koizumi
BACKGROUND: The point spread function (PSF) of positron emission tomography (PET) depends on the position across the field of view (FOV). Reconstruction based on PSF improves spatial resolution and quantitative accuracy. The present study aimed to quantify the effects of PSF correction as a function of the position of a traceable point-like (22)Na source over the FOV on two PET scanners with a different detector design. METHODS: We used Discovery 600 and Discovery 710 (GE Healthcare) PET scanners and traceable point-like (22)Na sources (<1 MBq) with a spherical absorber design that assures uniform angular distribution of the emitted annihilation photons...
December 2016: EJNMMI Physics
Li Liu, Weiping Chen, Min Nie, Fengjuan Zhang, Yu Wang, Ailing He, Xiaonan Wang, Gen Yan
OBJECTIVES: To handle the emergence of the regional healthcare ecosystem, physicians and surgeons in various departments and healthcare institutions must process medical images securely, conveniently, and efficiently, and must integrate them with electronic medical records (EMRs). In this manuscript, we propose a software as a service (SaaS) cloud called the iMAGE cloud. METHODS: A three-layer hybrid cloud was created to provide medical image processing services in the smart city of Wuxi, China, in April 2015...
October 25, 2016: Environmental Health and Preventive Medicine
Marcelo Piaia, Carolina Bonet Bub, Guilherme de Menezes Succi, Margareth Torres, Thiago Henrique Costa, Fabricio Costa Pinheiro, Marcelo Henrique Napimoga
According to the Brazilian Association of Organ Transplants, in 2015, 19,408 bone transplants were performed in Brazil, over 90% by Dental Surgeons. The surgical technique itself has a respectable number of reports regarding its clinical efficacy, as measured by long-term survival of dental implants in grafted areas. Uncertainty remains, however, as to whether fresh frozen grafts from human bone donors remain immunologically innocuous in the body of the host. Six male with no previous medical history of note, including systemic diseases, surgery or blood transfusion were selected...
October 25, 2016: Cell and Tissue Banking
Pinar Cagimni, Figen Govsa, Mehmet Asim Ozer, Zuhal Kazak
OBJECTIVE: Different clinical problems may require a surgical approach to the dental arch, such as dentofacial orthopedics, implant-supported dental prothesis, maxillary orthodontics protraction, removable appliances, and posttraumatic dental reconstruction. The aim of this study is to analyze the dental arch size and type for supporting individual dental protheses. MATERIALS AND METHODS: In this study, the reference measurements on the length of the bony palate, maxillary intercanine width, maxillary intermolar width, and the ratio of the maxillary to the palatinal surface were studied in 120 bony palates using a computer software program...
October 25, 2016: Surgical and Radiologic Anatomy: SRA
Stefan Aufderklamm, Martin Vaegler, Alexandra Kelp, Sabine Maurer, Leon Gustafsson, Jens Mundhenk, Silke Busch, Lisa Daum, Arnulf Stenzl, Bastian Amend, Karl-Dietrich Sievert
PURPOSE: Urethral strictures are a common disease of the lower urinary tract in men. At present, the use of buccal mucosa is the method of choice for long or recurrent strictures. However, autologous tissue-engineered grafts are still under investigation for reconstructive urological surgery. The aim of this pilot study was to evaluate the use of human urothelial cells (HUC) seeded on bovine collagen type I-based cell carriers (CCC) in an animal model and to evaluate short-term outcome of the surgical procedure...
October 25, 2016: World Journal of Urology
J Schmolders, S Koob, P Schepers, P H Pennekamp, S Gravius, D C Wirtz, R Placzek, A C Strauss
PURPOSE AND OBJECTIVE: Bone resection regarding adequate surgical margins is the treatment of choice for malignant bone tumors. In the case of metastasis-related complications, so-called skeletal-related events, it is highly important to achieve pain relief and a stable joint situation to re-mobilize the patients immediately following surgery. To bridge the often large osseous defect zones after tumor resection, both cemented and uncemented modular endoprosthetic systems are widely used...
October 25, 2016: Archives of Orthopaedic and Trauma Surgery
Pravech Ajawatanawong
Molecular phylogenetics is the study of evolutionary relationships among organisms using molecular sequence data. The aim of this review is to introduce the important terminology and general concepts of tree reconstruction to biologists who lack a strong background in the field of molecular evolution. Some modern phylogenetic programs are easy to use because of their user-friendly interfaces, but understanding the phylogenetic algorithms and substitution models, which are based on advanced statistics, is still important for the analysis and interpretation without a guide...
October 26, 2016: Advances in Biochemical Engineering/biotechnology
Amornpan Klanchui, Nachon Raethong, Peerada Prommeenate, Wanwipa Vongsangnak, Asawin Meechai
Cyanobacteria, the phototrophic microorganisms, have attracted much attention recently as a promising source for environmentally sustainable biofuels production. However, barriers for commercial markets of cyanobacteria-based biofuels concern the economic feasibility. Miscellaneous strategies for improving the production performance of cyanobacteria have thus been developed. Among these, the simple ad hoc strategies resulting in failure to optimize fully cell growth coupled with desired product yield are explored...
October 26, 2016: Advances in Biochemical Engineering/biotechnology
Yichun Zhang, Tielin Shi, Lei Su, Xiao Wang, Yuan Hong, Kepeng Chen, Guanglan Liao
Acoustic micro imaging has been proven to be sufficiently sensitive for micro defect detection. In this study, we propose a sparse reconstruction method for acoustic micro imaging. A finite element model with a micro defect is developed to emulate the physical scanning. Then we obtain the point spread function, a blur kernel for sparse reconstruction. We reconstruct deblurred images from the oversampled C-scan images based on l₁-norm regularization, which can enhance the signal-to-noise ratio and improve the accuracy of micro defect detection...
October 24, 2016: Sensors
Carlo M Oranges, Andreas Gohritz, Dirk J Schaefer
No abstract text is available yet for this article.
November 2016: Plastic and Reconstructive Surgery
Ryan M Moore, Jonathan Rimler, Brian R Smith, Garrett A Wirth, Keyianoosh Z Paydar
BACKGROUND: Venous thromboembolic events result in significant morbidity, mortality, and costly therapeutic interventions. As medical resource allocation strategies are becoming more pervasive, appropriate risk stratification and prophylactic regimens are essential. Previous studies have shown a decreased incidence of perioperative venous thromboembolism in the chronic spinal cord injury population. The question remains of whether chronic spinal cord injury is protective against venous thromboembolism...
November 2016: Plastic and Reconstructive Surgery
Anup Patel, James Clune, Stephan Ariyan
A clinical case of a patient undergoing right functional neck dissection is presented. A detailed, step-by-step video description highlighting the pearls of the operation accompanies the article. This will be the first of many contributions in a Plastic and Reconstructive Surgery and PRS Global Open Operative Technique Series initiative that endeavors to disseminate plastic and reconstructive knowledge worldwide.
November 2016: Plastic and Reconstructive Surgery
Adrian S H Ooi, Daniel R Butz, Zhen Gooi, David W Chang
Reconstruction of pharyngolaryngoesophageal defects following salvage surgery in patients with a history of chemoradiation is a challenging problem with a high incidence of pharyngocutaneous fistula. The authors describe three cases of successful reconstruction of partial pharyngolaryngoesophageal defects using a modified radial forearm free flap with additional dermal reinforcement and review the literature for innovations in the use of radial forearm free flap for reconstruction of these difficult cases. Modification of the radial forearm free flap makes it a versatile, reliable flap that has become the "go-to" flap for partial pharyngolaryngoesophageal reconstruction...
November 2016: Plastic and Reconstructive Surgery
Jeffrey G Trost, Lawrence O Lin, Sarah Jane Clark, David Y Khechoyan, Larry H Hollier, Edward P Buchanan
BACKGROUND: Conjoined twins are a rare medical phenomenon that offers a unique challenge for medical professionals. The complex anatomy of conjoined twins dictates their survival and amenability to separation, making each case different in terms of medical management, surgical planning, and patient outcomes. Thoraco-omphalo-ischiopagus twins, joined from the thorax to the pelvis, are one of the rarest orientations recorded in the medical literature, and successful separation of this subset of conjoined twins has not been documented...
November 2016: Plastic and Reconstructive Surgery
Caroline A Yao, Jordan Swanson, Dayana Chanson, Trisa B Taro, Barrie Gura, Jane C Figueiredo, Heather Wipfli, Kristin Hatcher, Richard Vanderburg, William P Magee
BACKGROUND: Despite health system advances, residents of low- and middle-income countries continue to experience substantial barriers in accessing health care, particularly for specialized care such as plastic and reconstructive surgery. METHODS: A cross-sectional household survey of patients seeking surgical care for cleft lip and/or cleft palate was completed at five Operation Smile International mission sites throughout Vietnam (Hanoi, Nghe An, Hue, Ho Chi Minh City, An Giang, and Bac Lieu) in November of 2014...
November 2016: Plastic and Reconstructive Surgery
Ulrike Pilsl, Friedrich Anderhuber
BACKGROUND: The blood supply to the external nose is poorly described. The aim of this study was to identify the different types of blood supply to the external nose and the course of the arteries in relation to the nasolabial fold and groove and to the facial muscles. METHODS: With 96 facial halves of 48 adult specimens, the arteries of the outer nose were dissected, and three-dimensional computed tomographic reconstructions and horizontal sections were made. RESULTS: Three main types of blood supply to the external nose were identified, associated with the different types of facial arteries...
November 2016: Plastic and Reconstructive Surgery
Shailesh Agarwal, Jordan Talia, Peter S Liu, Adeyiza O Momoh, Jeffrey H Kozlow
BACKGROUND: Computed tomographic angiography is increasingly used during surgical planning for abdominally based microvascular breast reconstruction. Cost-analysis studies have demonstrated a benefit to the use of computed tomographic angiography, although the secondary costs of incidental findings have not been previously reported. This study investigates the cost of computed tomographic angiography, taking into account the cost of incidental findings found during imaging. METHODS: Patients undergoing preoperative computed tomographic angiography in preparation for autologous abdominally based breast reconstruction from July of 2010 through May of 2014 were included in this study...
November 2016: Plastic and Reconstructive Surgery
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