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https://www.readbyqxmd.com/read/29691857/primary-tonsillar-mast-cell-tumour-in-a-dog
#1
C C Shekell, M J Thomson, R I Miller, J T Mackie
CASE REPORT: A 6-year-old speyed female Bull Arab-cross dog was found to have a small tonsillar nodule. Histological examination revealed a well-differentiated mast cell tumour (MCT). At initial staging, no evidence of concurrent cutaneous or visceral MCTs was found on a complete blood count, a single lateral thoracic radiograph, abdominal ultrasound or cytology of the spleen and regional lymph nodes. A diagnosis of primary tonsillar MCT was made. At 40 months postoperatively, the dog is alive with no evidence of gross tumour progression, in contrast to some previous reports of rapid disease progression and metastasis in dogs with primary oral MCTs...
May 2018: Australian Veterinary Journal
https://www.readbyqxmd.com/read/29691786/mechanical-and-clinical-evaluation-of-a-shape-memory-alloy-and-conventional-struts-in-a-flexible-scoliotic-brace
#2
Wing-Yu Chan, Joanne Yip, Kit-Lun Yick, Sun-Pui Ng, Lu Lu, Kenneth Man-Chee Cheung, Kenny Yat-Hong Kwan, Jason Pui-Yin Cheung, Kelvin Wai-Kwok Yeung, Chi-Yung Tse
Smart materials have attracted considerable attention in the medical field. In particular, shape memory alloys (SMAs) are most commonly utilized for their superelasticity (SE) in orthopaedic treatment. In this study, the resin struts of a flexible brace for adolescent idiopathic scoliosis (AIS) are replaced with different conventional materials and an SMA. The corrective mechanism mainly depends on the compressive force applied by the brace at the desired location. Therefore, the mechanical properties of the materials used and the interface pressure are both critical factors that influence the treatment effectiveness...
April 24, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29691613/lesion-size-measurement-in-femoral-head-necrosis
#3
Marvin E Steinberg, Seong C Oh, Viviane Khoury, Jayaram K Udupa, David R Steinberg
BACKGROUND: Management of patients with early stages of osteonecrosis of the femoral head remains controversial. Uniform use of an effective method of evaluation and classification, including both stage and lesion size, would allow for comparison and would significantly improve treatment of patients. There is no consensus on how best to determine lesion size. The purpose of this study was to evaluate and compare accuracy and ease of use of different techniques for determining the size of femoral head lesions...
April 25, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29691555/-clinical-research-for-non-extraction-treatment-of-maxillary-mild-to-moderate-crowding-with-damon-technology
#4
Wei Zhang, Chuan-Jie Yan, Li Li
PURPOSE: To compare the clinical efficacy of non-extraction treatment in maxillary mild-to-moderate crowding cases with Damon self-ligating system and Roth traditional brackets. METHODS: Sixty skeletalⅠorthodontic patients were selected in this study. They were divided into DamonⅠ, RothⅠ, DamonⅡ and RothⅡ group according to the bracket species and maxillary crowding degrees. Lateral cephalometric radiographs and models were measured before and after aligning and leveling to analyze the changes in dental arch and soft and hard tissue using SPSS 19...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29691344/women-in-radiography-practice-in-ghana-motivating-and-demotivating-factors
#5
Samuel Anim-Sampong, Lawrence Arthur, Josephine Abena Nkansah, Benard Ohene Botwe
PURPOSE: To investigate and establish reasons for the smaller but increasing population of female radiographers in Ghana, and to evaluate the motivating and demotivating contributory factors associated with women's choice of the profession. METHODS: A descriptive quantitative survey design and a purposive sampling technique were used to recruit participants from hospitals, clinics, and private imaging centers in Ghana. Forty registered female radiographers were invited to participate in the survey, and 30 participants completed and returned the questionnaires...
March 2018: Radiologic Technology
https://www.readbyqxmd.com/read/29691260/ceftolozane-tazobactam-for-the-treatment-of-multidrug-resistant-pseudomonas-aeruginosa-pneumonia-in-a-patient-receiving-intermittent-hemodialysis
#6
Mohammed A Alessa, Thamer A Almangour, Abdulaziz Alhossan, Musaed A Alkholief, Mohammed Alhokail, Deanne E Tabb
PURPOSE: The safety and effectiveness of ceftolozane-tazobactam for the treatment of multidrug-resistant (MDR) Pseudomonas aeruginosa pneumonia in a patient receiving intermittent hemodialysis are reported. CASE REPORT: A 79-year-old African-American man arrived at an emergency trauma center from a nursing home via ambulance with shortness of breath and potential nasogastric tube misplacement. His medical history included end-stage renal disease (ESRD) for which he was receiving intermittent hemodialysis 3 times per week, hypertension, sacral ulcer, coronary artery bypass graft surgery, and P...
May 1, 2018: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/29691176/anthropometric-measurements-of-knee-joints-in-the-hispanic-population
#7
Colin A McNamara, Amer A Hanano, Jesus M Villa, Gustavo M Huaman, Preetesh D Patel, Juan C Suarez
BACKGROUND: Total knee arthroplasty (TKA) systems provide a set of incrementally sized tibial and femoral components intended to accommodate most knee parameters. However, the most commonly used systems in the United States were developed using data from Caucasian patients which might not lead to the best fit in non-Caucasians. Therefore, we wanted to evaluate whether these TKA systems proportionally match femoral and tibial measurements in Hispanics. METHODS: All lower extremity magnetic resonance imaging performed at our institution between January 2007 and October 2015 were screened...
March 27, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29691041/application-of-pre-contoured-anatomic-locking-plate-for-treatment-of-humerus-split-type-greater-tuberosity-fractures-a-prospective-review-of-68-cases-with-an-average-follow-up-of-2-5-years
#8
Chuanzhen Hu, Kaihua Zhou, Fugen Pan, Qilin Zhai, Weifeng Wen, Xiaojian He
OBJECTIVES: Although various implants exist for 3- and 4-part proximal humerus fractures, few implants are appropriate for humerus split type greater tuberosity fractures. The goal of this study was to assess the efficacy of pre-contoured anatomic locking plate for humerus split type greater tuberosity fractures. METHODS: A retrospective review of 68 patients with humerus split type greater tuberosity fractures treated with open reduction and internal fixation using anatomic locking plates between January 2014 and October 2016...
April 18, 2018: Injury
https://www.readbyqxmd.com/read/29690694/-study-on-the-incidence-of-lateral-canals-and-sealing-quality-in-the-apical-third-roots-of-permanent-teeth-with-failed-endodontic-treatments
#9
X X Huang, M Fu, G Q Yan, B X Hou
Objective: To investigate the association between the frequency and filling rate of lateral canals and the sealing quality in the apical third roots of the permanent teeth with failed endodontic treatments, so as to explore the failure factors of root canal therapy. Methods: Clinical records of the permanent teeth with failed endodontic treatments were collected from the Department of Endodontics, Capital Medical University School of Stomatology during a period of 2 years. The teeth were diagnosed as chronic apical periodontitis and then undergone endodontic microsurgery...
April 9, 2018: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/29690583/anatomical-and-radiographic-study-on-the-skull-and-mandible-of-the-common-opossum-didelphis-marsupialis-linnaeus-1758-in-the-caribbean
#10
Reda Mohamed
Common opossums ( Didelphis marsupialis ) are found throughout the Caribbean island of Trinidad and Tobago. The present work was conducted on 10 skulls and mandibles of the common opossum to describe the osteology and foramina of these skulls and mandibles grossly and radiographically. The information that is garnered can be used to detect, diagnose, and treat head affections, as well as for comparative studies with the skulls and mandibles of other similar species. The skulls and mandibles were prepared and cleaned using standard method...
April 23, 2018: Veterinary Sciences
https://www.readbyqxmd.com/read/29689589/ten-year-clinical-and-radiological-outcomes-of-100-total-hip-arthroplasty-cases-with-a-modern-cementless-dual-mobility-cup
#11
Loïc Laurendon, Rémi Philippot, Thomas Neri, Bertrand Boyer, Frédéric Farizon
INTRODUCTION: The original cementless Sunfit® dual mobility cup (SERF, Décines, France) exhibited limited osseointegration due to its hydroxyapatite and alumina coating. We hypothesized that replacement of the alumina with plasma-sprayed titanium + hydroxyapatite and improvement of the external geometry (Sunfit TH®) would not increase the risk of aseptic loosening. The primary goal of this study was to determine the survivorship and clinical and radiological outcomes among patients with the Sunfit TH® implant...
April 23, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29689005/perioperative-complications-after-surgery-for-thoracic-ossification-of-posterior-longitudinal-ligament-nationwide-multicenter-prospective-study
#12
Shiro Imagama, Kei Ando, Kazuhiro Takeuchi, Satoshi Kato, Hideki Murakami, Toshimi Aizawa, Hiroshi Ozawa, Tomohiko Hasegawa, Yukihiro Matsuyama, Masao Koda, Masashi Yamazaki, Hirotaka Chikuda, Shigeo Shindo, Yukihiro Nakagawa, Atsushi Kimura, Katsushi Takeshita, Kanichiro Wada, Hiroyuki Katoh, Masahiko Watanabe, Kei Yamada, Takeo Furuya, Takashi Tsuji, Shunsuke Fujibayashi, Kanji Mori, Yoshiharu Kawaguchi, Kota Watanabe, Morio Matsumoto, Toshitaka Yoshii, Atsushi Okawa
STUDY DESIGN: Prospective, multicenter, nationwide study OBJECTIVE.: To investigate perioperative complications and risk factors in surgery for thoracic ossification of the posterior longitudinal ligament (T-OPLL) using data from the registry of the Japanese Multicenter Research Organization for Ossification of the Spinal Ligament. SUMMARY OF BACKGROUND DATA: There is no prospective multicenter study of surgical complications and risk factors for T-OPLL, and previous multicenter retrospective studies have lacked details...
April 23, 2018: Spine
https://www.readbyqxmd.com/read/29688959/arthroscopic-management-of-tibial-spine-avulsion-fractures-principles-and-techniques
#13
Eric J Strauss, Daniel James Kaplan, Maxwell E Weinberg, Jonathan Egol, Laith M Jazrawi
Tibial spine fractures are uncommon injuries affecting the insertion of the anterior cruciate ligament on the tibia. They typically occur in skeletally immature patients aged 8 to 14 years and result from hyperextension of the knee with a valgus or rotational force. Diagnosis is based on history, physical examination, and standard radiographs. The use of MRI can identify entrapped soft tissue that may prevent reduction. Open or arthroscopic repair is indicated in patients with partially displaced fractures (>5 mm) with one third to one half of the avulsed fragment elevated, in patients who have undergone unsuccessful nonsurgical reduction and long leg casting or bracing, and in patients with completely displaced fractures...
April 23, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29688804/are-patients-with-spontaneous-csf-otorrhea-and-superior-canal-dehiscence-congenitally-predisposed-to-their-disorders
#14
Shawn M Stevens, Kiefer Hock, Ravi N Samy, Myles L Pensak
Objectives (1) Compare lateral skull base (LSB) height/thickness in patients with spontaneous cerebrospinal fluid otorrhea (CSF), superior canal dehiscence (SCD), acoustic neuromas (AN), and otosclerosis (OTO). (2) Perform correlations between age, body mass index (BMI), sex, and LSB height/thickness. Study Design Case series with chart review. Setting Tertiary referral center. Subjects and Methods Patients with CSF, SCD, AN, and OTO diagnosed from 2006 to 2016 were included if they had high-definition temporal bone computed tomography (CT) and absence of trauma, radiation, chronic ear disease, and/or congenital anomaly...
April 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29688749/surgical-treatment-with-closing-wedge-distal-femoral-osteotomy-for-recurrent-patellar-dislocation-with-genu-valgum
#15
Kyung Wook Nha, Yoonwon Ha, Seungmin Oh, Vivek P Nikumbha, Sae Kwang Kwon, Woo-Jin Shin, Byung Hoon Lee, Keun Bae Hong
BACKGROUND: Closing-wedge distal femoral osteotomy (CWDFO)-combined with medial reefing and lateral release, if necessary- has been used to treat recurrent patellar dislocation (RPD) with genu valgum. PURPOSE: To evaluate the clinical and radiologic outcomes of surgical treatment with CWDFO for treatment of RPD with genu valgum. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Fourteen consecutive patients (23 knees) with RPD and genu valgum were treated with CWDFO...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29688555/a-pilot-study-on-posterior-polyethylene-tethers-to-prevent-proximal-junctional-kyphosis-after-multilevel-spinal-instrumentation-for-adult-spinal-deformity
#16
Thomas J Buell, Avery L Buchholz, John C Quinn, Shay Bess, Breton G Line, Christopher P Ames, Frank J Schwab, Virginie Lafage, Christopher I Shaffrey, Justin S Smith
BACKGROUND: Proximal junctional kyphosis (PJK) is a common problem after multilevel spine instrumentation. OBJECTIVE: To determine if junctional tethers reduce PJK after multilevel instrumented surgery for adult spinal deformity (ASD). METHODS: ASD patients who underwent posterior instrumented fusion were divided into 3 groups: no tether (NT), polyethylene tether-only (TO; tied securely through the spinous processes of the uppermost instrumented vertebra [UIV] + 1 and UIV-1), and tether with crosslink (TC; passed through the spinous process of UIV+1 and tied to a crosslink between UIV-1 and UIV-2)...
April 24, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29688445/extrapolating-the-limits-of-the-nasoseptal-flap-with-pedicle-dissection-to-the-internal-maxillary-artery
#17
Carlos D Pinheiro-Neto, Maria Peris-Celda, Tyler Kenning
BACKGROUND: The nasoseptal flap is the main pedicled flap used for endoscopic cranial base reconstruction. For large anterior cranial base defects, the anterior edge is a concern for the nasoseptal flap reach. OBJECTIVE: To present a surgical technique that completely releases the vascular pedicle of the nasoseptal flap from the sphenopalatine artery (SPA) foramen improving considerably the reach of the flap. METHODS: A patient with left anterior cranial base fracture involving the posterior table of the frontal sinus, who presented with cerebrospinal fluid leak and contused brain herniation to the ethmoid and frontal sinuses...
April 24, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29687593/incorporating-si-3-n-4-into-peek-to-produce-antibacterial-osteocondutive-and-radiolucent-spinal-implants
#18
Giuseppe Pezzotti, Elia Marin, Tetsuya Adachi, Federica Lerussi, Alfredo Rondinella, Francesco Boschetto, Wenliang Zhu, Takashi Kitajima, Kosuke Inada, Bryan J McEntire, Ryan M Bock, B Sonny Bal, Osam Mazda
Polyetheretherketone (PEEK) is a popular polymeric biomaterial which is primarily used as an intervertebral spacer in spinal fusion surgery; but it is developed for trauma, prosthodontics, maxillofacial, and cranial implants. It has the purported advantages of an elastic modulus which is similar to native bone and it can be easily formed into custom 3D shapes. Nevertheless, PEEK's disadvantages include its poor antibacterial resistance, lack of bioactivity, and radiographic transparency. This study presents a simple approach to correcting these three shortcomings while preserving the base polymer's biocompatibility, chemical stability, and elastic modulus...
April 24, 2018: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29687535/management-of-intraductal-papilloma-without-atypia-of-the-breast-diagnosed-on-core-biopsy-size-and-sampling-matter
#19
Brittany Symbol, Andrew Ricci
Due to the potential for atypia (atypical ductal or lobular hyperplasia) or carcinoma (in situ or invasive) on excision, aggressive reflex surgical excision protocols following core biopsy diagnosis of papillary lesions of the breast (ie, intraductal papilloma) are commonplace. Concepts in risk stratification, including radiologic-pathologic correlation, are emerging in an effort to curb unnecessary surgeries. To this end, we examined all excised intraductal papillomas diagnosed at our institution from 2010-2015 (N = 336) and found an overall atypia rate of 20%...
April 23, 2018: Breast Journal
https://www.readbyqxmd.com/read/29687530/radiographically-guided-shave-margins-may-reduce-lumpectomy-re-excision-rates
#20
Kelsey E Larson, Priya Jadeja, Alison Marko, Veeraj Jadeja, Debra Pratt
Minimizing margin re-excision optimizes patient care by providing appropriate oncologic resection and reducing costs. This study aims to assess margin positivity rate in two groups: shave margin based on gross specimen (control group, CG) vs shave margin based on intraoperative imaging (radiographic group, RG). A total of 182 patients who underwent lumpectomy for stage O-III breast cancer at a single institution from January 2013 to January 2014 were evaluated. There was statistically significant decrease in margin re-excision rate with intraoperative mammography but not with ultrasound...
April 23, 2018: Breast Journal
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