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https://www.readbyqxmd.com/read/28713661/pre-surgical-provisional-prosthesis-for-immediate-non-occlusal-loaded-flapless-implant
#1
Athiban Inbarajan, Fathima Banu, Padmanabhan Tv, Anand Kumar, Madhan Seenivasan
A 49-year-old patient reported for immediate replacement of missing maxillary anterior teeth with implant-retained prosthesis. Elevation of flap alters the mucosal level, causes discomfort, and delays the restorative procedure. To maintain the esthetics, flapless surgery was planned. Since placement of an implant is pre-planned in a predetermined site, fabrication of the prostheses before commencement of the surgery, especially when replacing the teeth in the anterior region, could be a viable option. This case report explains the method of fabrication of the provisional restoration for flapless surgery in the presurgical phase...
June 13, 2017: Curēus
https://www.readbyqxmd.com/read/28689601/imaging-features-of-intracranial-psammomatous-meningioma
#2
L Liu, Y Lu, W Peng, D Geng, J Wen, J Xiong, L Zou, B Yin
PURPOSE: This study was conducted to describe the imaging features of intracranial psammomatous meningioma (IPM). MATERIALS AND METHODS: Twenty-three patients with a histopathological diagnosis of IPM between January 2007 and August 2016 were retrospectively reviewed. Twenty-two patients underwent contrast-enhanced MRI scanning, and 16 underwent non-enhanced CT. RESULTS: A total of 23 adult patients (3 men, 20 women; mean age, 55.3±7.0 years) with 30 IPMs, including 3 patients with multiple IPMs, were recruited...
July 6, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28675541/novel-approach-to-maxillary-reconstruction-using-osteocutaneous-free-tissue-transfer-with-a-customized-stent
#3
Vivek R Varma, Yin Yiu, Meade Van Putten, Tiffany L Kessling, Enver Ozer, Amit Agrawal, Theodoros Teknos, Stephen Y Kang, Matthew O Old
BACKGROUND: Computer-guided 3D virtual planning and customized templates are novel and effective methods aiding maxillary reconstruction, particularly during osteocutaneous free tissue transfer of complex defects. However, virtual planning and modelling is often expensive. METHODS: We present a new method to reconstruct complex defects with a surgical stent designed from presurgical casts. We present 2 patients who underwent this technique. Reconstruction in both cases was aided by a surgical stent fashioned preoperatively to approximate the anatomic dimensions of the defect, guiding the shape and orientation of the flap during inset to aid in dental rehabilitation...
July 4, 2017: Head & Neck
https://www.readbyqxmd.com/read/28673889/presurgical-planning-for-supratentorial-lesions-with-free-slicer-software-and-sina-app
#4
Ji-Gang Chen, Kai-Wei Han, Dan-Feng Zhang, Zhen-Xing Li, Yi-Ming Li, Li-Jun Hou
BACKGROUND: Neuronavigation system is widely used in the localization of intracranial lesions with satisfactory accuracy. However, it's expensive and difficult to learn. Therefore, simple and practical augmented reality (AR) system using mobile devices might be an alternative technique. OBJECTIVE: We aim to introduce a mobile AR system for the localization of supratentorial lesions. Its practicability and accuracy were examined by clinical application in patients and comparison with standard neuronavigation system...
June 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28670404/role-of-anatomical-landmarks-in-identifying-normal-and-transitional-vertebra-in-lumbar-spine-magnetic-resonance-imaging
#5
Devimeenal Jagannathan, Venkatraman Indiran, Fouzal Hithaya, M Alamelu, S Padmanaban
STUDY DESIGN: Retrospective study. PURPOSE: Identification of transitional vertebra is important in spine imaging, especially in presurgical planning. Pasted images of the whole spine obtained using high-field magnetic resonance imaging (MRI) are helpful in counting vertebrae and identifying transitional vertebrae. Counting vertebrae and identifying transitional vertebrae is challenging in isolated studies of lumbar spine and in studies conducted in low-field MRI...
June 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28660420/effects-of-combined-orthodontic-orthognathic-treatment-for-class-ii-and-iii-correction-on-posterior-airway-space-comparison-of-mono-and-bignathic-osteotomies
#6
Jan Hourfar, Gero Stefan Michael Kinzinger, Hartmut Feifel, Verena Maria Vehr, Jörg Alexander Lisson
OBJECTIVES: Comparison of treatment effects on the posterior airway space (PAS) in patients treated with combined orthodontic-orthognathic surgical treatment. METHODS: Pre- and postsurgical lateral cephalograms of 53 (34 females, 19 males) Caucasian patients were analyzed using a customized set of measurements. According to malocclusion (Class II or III) and surgical approach (either monognathic or bignathic), patients were allocated into four groups. PAS was assessed from cranial to caudal at six levels (P1-P6)...
June 28, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28652096/mr-imaging-of-endometriosis-spectrum-of-disease
#7
C Bourgioti, O Preza, E Panourgias, K Chatoupis, A Antoniou, M E Nikolaidou, L A Moulopoulos
Endometriosis is a common gynecological disorder defined by the presence of endometrial tissue outside the uterus. It is the most common cause of chronic pelvic pain and typically affects the ovaries, uterine ligaments, peritoneum, tubes, rectovaginal septum and bladder. It may, however, be found at various extrapelvic sites, including the perineum, liver, pancreas, lung or even the central nervous system, and in such cases, diagnosis may be quite challenging. Even though definitive diagnosis requires laparoscopy, preoperative identification of endometriosis is important not only to differentiate it from other diseases with similar clinical presentations but also, for accurate presurgical mapping, since complete removal of all endometriotic foci is critical for the effective treatment of the patient's symptoms...
June 23, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28644979/intraoperative-fast-ripples-independently-predict-postsurgical-epilepsy-outcome-comparison-with-other-electrocorticographic-phenomena
#8
Shaun A Hussain, Gary W Mathern, Phoebe Hung, Julius Weng, Raman Sankar, Joyce Y Wu
In the surgical management of epilepsy, the resection of cortex exhibiting interictal fast ripples (250-500Hz) on electrocorticography has been linked to postoperative seizure-freedom. Although fast ripples appear to accurately identify the epileptogenic zone-the minimum tissue that must be removed at surgery to achieve seizure-freedom-it has not been established that fast ripples are a superior biomarker in comparison with multimodal presurgical neuroimaging and other electrocorticography abnormalities. Hence, in the prediction of postoperative seizure-freedom, we compared the value of fast ripples with other intraoperative electocorticography abnormalities including focal slowing, paroxysmal fast activity, intermittent spike discharges, continuous epileptiform discharges, focal attenuation, and intraoperative seizures, as well as complete resection of the lesion defined by MRI and other neuroimaging...
June 16, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28642186/mandibular-anterior-segmental-subapical-osteotomy-for-incisor-axis-correction
#9
T Sahin, E Garreau, Y Komakli, R Nicot, J J Sciote, J Ferri
INTRODUCTION: Mandibular incisor axis correction can be challenging in non-extraction orthodontic treatment planning. Mandibular anterior segmental subapical osteotomy (MASSO) is a surgical approach, which can be used to reposition incisor axis, improve occlusal function and enhance the soft tissue profile. METHODS: Twenty-eight patients, mean age 22.6 years (16-39, SD=6.69), were treated for MASSO for correction of Class II dentoskeletal deformity, in addition to other orthognathic procedures...
June 19, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28625277/the-diagnosis-and-treatment-of-hemoptysis
#10
Harald Ittrich, Maximilian Bockhorn, Hans Klose, Marcel Simon
BACKGROUND: Hemoptysis, i.e., the expectoration of blood from the lower airways, has an annual incidence of approximately 0.1% in ambulatory patients and 0.2% in inpatients. It is a potentially life-threatening medical emergency and carries a high mortality. METHODS: This review article is based on pertinent publications retrieved by a selective search in PubMed. RESULTS: Hemoptysis can be a sign of many different diseases. Its cause remains unknown in about half of all cases...
June 5, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28621805/noninvasive-screening-test-for-detecting-early-stage-lymphedema-using-follow-up-computed-tomography-imaging-after-cancer-treatment-and-results-of-treatment-with-lymphaticovenular-anastomosis
#11
Shinsuke Akita, Fusa Ogata, Ichiro Manabe, Akira Mitsuhashi, Rikiya Nakamura, Yoshihisa Yamaji, Yoshitaka Kubota, Nobuyuki Mitsukawa
BACKGROUND: Although early detection is valuable for secondary lymphedema treatment, existing screening tests are not popular. This study aimed to propose a novel method of screening lymphedema patients based on the thickness of the subcutaneous fat measured with perioperative computed tomography (CT) and present the results from evaluation of patients who underwent those examinations was performed. METHOD: The medical records of 96 gynecological cancer patients and 189 breast cancer patients, whose lymphatic function was assessed with indocyanine green lymphography, were reviewed...
June 16, 2017: Microsurgery
https://www.readbyqxmd.com/read/28615974/presurgical-cleft-lip-and-palate-orthopedics-an-overview
#12
REVIEW
Ibtesam Alzain, Waeil Batwa, Alex Cash, Zuhair A Murshid
Patients with cleft lip and/or palate go through a lifelong journey of multidisciplinary care, starting from before birth and extending until adulthood. Presurgical orthopedic (PSO) treatment is one of the earliest stages of this care plan. In this paper we provide a review of the PSO treatment. This review should help general and specialist dentists to better understand the cleft patient care path and to be able to answer patient queries more efficiently. The objectives of this paper were to review the basic principles of PSO treatment, the various types of techniques used in this therapy, and the protocol followed, and to critically evaluate the advantages and disadvantages of some of these techniques...
2017: Clinical, Cosmetic and Investigational Dentistry
https://www.readbyqxmd.com/read/28592584/utilising-advance-care-planning-videos-to-empower-perioperative-cancer-patients-and-families-a-study-protocol-of-a-randomised-controlled-trial
#13
Rebecca A Aslakson, Sarina R Isenberg, Norah L Crossnohere, Alison M Conca-Cheng, Ting Yang, Matthew Weiss, Angelo E Volandes, John F P Bridges, Debra L Roter
INTRODUCTION: Despite positive health outcomes associated with advance care planning (ACP), little research has investigated the impact of ACP in surgical populations. Our goal is to evaluate how an ACP intervention video impacts the patient centredness and ACP of the patient-surgeon conversation during the presurgical consent visit. We hypothesise that patients who view the intervention will engage in a more patient-centred communication with their surgeons compared with patients who view a control video...
June 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28579489/a-novel-protocol-for-planning-and-navigation-in-craniofacial-surgery-a-preclinical-surgical-study
#14
Leonardo Franz, Miriam Isola, Daniele Bagatto, Ferdinando Calzolari, Luciana Travan, Massimo Robiony
PURPOSE: In modern craniofacial surgery, the accuracy of osteotomies plays a central role in surgical technique. To reach a higher level of accuracy, many centers use virtual presurgical planning. In the past decade, some surgeons also have applied navigational approaches to craniofacial procedures. In this work, a novel protocol for surgical planning and intraoperative navigation is described and validated in a preclinical setting to determine its accuracy in guiding osteotomies. MATERIALS AND METHODS: This study was based on planning a set of osteotomies using 3-dimensional models of computed tomographic images of human skulls...
May 10, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28575179/measurement-bias-of-gross-pathologic-compared-with-radiologic-tumor-size-of-resected-lung-adenocarcinomas-implications-for-the-t-stage-revisions-in-the-eighth-edition-of-the-american-joint-committee-on-cancer-staging-manual
#15
Kevin R Anderson, Benedikt H Heidinger, Yigu Chen, Alexander A Bankier, Paul A VanderLaan
Objectives: The eighth edition of the AJCC Cancer Staging Manual now stratifies the T descriptor for lung cancers by each increasing 1.0 cm increment, up to 5.0 cm, with an additional category for tumor greater than 7.0 cm. Bias in pathologic versus radiologic measurements may impact tumor staging. Methods: The gross pathologic measurements of 493 resected lung adenocarcinomas were compared with presurgical computed tomography radiologic measurements. Also, pathologic tumor measurement data from the Surveillance, Epidemiology, and End Results (SEER) program database were examined...
June 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28573345/evaluation-of-retromolar-canals-on-cone-beam-computerized-tomography-scans-and-digital-panoramic-radiographs
#16
Luiz Felipe Palma, Ariane Fraga Buck, Flávio de Ávila Kfouri, Isaac Tobias Blachman, Leonardo Augusto Lombardi, Marcelo Arthur Cavalli
PURPOSE: The purpose of this study was to carry out morphologic and topographic analyses of retromolar canals on cone beam computerized tomography (CBCT) scans, comparing findings to others obtained from the corresponding digital panoramic radiographs. METHODS: Sixty-one CBCT scans were analysed digitally, as well as their corresponding digital panoramic radiographs. The prevalence and distribution of these canals, foramen diameters, and intraosseous communications were also evaluated...
June 1, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28544168/presurgical-language-fmri-mapping-of-six-critical-regions
#17
Christopher F Benjamin, Patricia D Walshaw, Kayleigh Hale, William D Gaillard, Leslie C Baxter, Madison M Berl, Monika Polczynska, Stephanie Noble, Rafeed Alkawadri, Lawrence J Hirsch, R Todd Constable, Susan Y Bookheimer
Language mapping is a key goal in neurosurgical planning. fMRI mapping typically proceeds with a focus on Broca's and Wernicke's areas, although multiple other language-critical areas are now well-known. We evaluated whether clinicians could use a novel approach, including clinician-driven individualized thresholding, to reliably identify six language regions, including Broca's Area, Wernicke's Area (inferior, superior), Exner's Area, Supplementary Speech Area, Angular Gyrus, and Basal Temporal Language Area...
August 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28540667/neurocognitive-functioning-in-pediatric-craniopharyngioma-performance-before-treatment-with-proton-therapy
#18
Ashley S Fournier-Goodnight, Jason M Ashford, Thomas E Merchant, Frederick A Boop, Daniel J Indelicato, Lei Wang, Hui Zhang, Heather M Conklin
The goal of this study was to investigate the impact of patient-, disease-, and treatment-related variables upon neurocognitive outcomes in pediatric patients with craniopharyngioma prior to treatment with proton therapy or observation after radical resection. For all participants (N = 104), relevant clinical and demographic variables were attained and neurocognitive evaluations completed prior to irradiation or planned observation. One-sample t-tests were conducted to compare performance to published normative data...
May 24, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28540122/presurgical-role-of-mri-tractography-in-a-case-of-extensive-cervicothoracic-spinal-ependymoma
#19
Francesca Granata, Sergio Racchiusa, Enricomaria Mormina, Valeria Barresi, Giada Garufi, Giovanni Grasso, Francesco Maria Salpietro, Marcello Longo, Concetta Alafaci
BACKGROUND: Intramedullary spinal ependymoma is a tumor, hardly characterizable with conventional magnetic resonance (MR) imaging only. MR diffusion tensor imaging (DTI) with three-dimensional fiber-tracking reconstructions allows the evaluation of the relationship between neoplasm and white matter fiber tracts, being a powerful tool in presurgical planning. We present DTI findings in a case of a young female with an extensive cervicothoracic spinal ependymoma. CASE DESCRIPTION: The patient complained of a 2-month history of acute urinary retention, weakness and numbness on the lower limbs and the upper left limb...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28538573/pursuing-mirror-image-reconstruction-in-unilateral-microtia-customizing-auricular-framework-by-application-of-three-dimensional-imaging-and-three-dimensional-printing
#20
Hsin-Yu Chen, Li-Shia Ng, Chun-Shin Chang, Ting-Chen Lu, Ning-Hung Chen, Zung-Chung Chen
BACKGROUND: Advances in three-dimensional imaging and three-dimensional printing technology have expanded the frontier of presurgical design for microtia reconstruction from two-dimensional curved lines to three-dimensional perspectives. This study presents an algorithm for combining three-dimensional surface imaging, computer-assisted design, and three-dimensional printing to create patient-specific auricular frameworks in unilateral microtia reconstruction. METHODS: Between January of 2015 and January of 2016, six patients with unilateral microtia were enrolled...
June 2017: Plastic and Reconstructive Surgery
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