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https://www.readbyqxmd.com/read/28437490/the-diagnosis-and-initial-treatment-of-patellofemoral-disorders
#1
Alan C Merchant, John P Fulkerson, Wayne Leadbetter
Our purpose is to provide simple guidelines for the diagnosis and early care of patellofemoral disorders. Any clinician who treats knee problems, including family practitioners, rheumatologists, orthopedic surgeons, or physical therapists, must know how to make the correct diagnosis, or at least a presumptive diagnosis, at the initial visit. This can avoid unneeded and costly tests, ineffective treatment, and even damaging exercises and unnecessary surgery. The diagnosis of patellofemoral disorders is confusing because they can have many causes...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28437347/effect-of-coronal-scoliotic-curvature-on-sagittal-spinal-shape-analysis-of-parameters-in-mature-adolescent-scoliosis-patients
#2
Jae-Young Hong, Keon-Woo Kim, Seung-Woo Suh, Si-Young Park, Jae-Hyuk Yang
STUDY DESIGN: A radiographic analysis with scoliosis patients. OBJECTIVES: To analyze correlations between sagittal spinal alignment and coronal scoliotic curvature. SUMMARY OF BACKGROUND DATA: Sagittal spinal alignment and scoliosis may have a significant relationship, and schematic analysis is needed. METHODS: The study group was comprised of 163 patients with adolescent idiopathic scoliosis. Subjects underwent anteroposterior and lateral radiographs of the whole spine including hip joints...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28426586/predictive-modeling-of-massive-transfusion-requirements-during-liver-transplantation-and-its-potential-to-reduce-utilization-of-blood-bank-resources
#3
Aliaksei Pustavoitau, Maggie Lesley, Promise Ariyo, Asad Latif, April J Villamayor, Steven M Frank, Nicole Rizkalla, William Merritt, Andrew Cameron, Nabil Dagher, Benjamin Philosophe, Ahmet Gurakar, Allan Gottschalk
BACKGROUND: Patients undergoing liver transplantation frequently but inconsistently require massive blood transfusion. The ability to predict massive transfusion (MT) could reduce the impact on blood bank resources through customization of the blood order schedule. Current predictive models of MT for blood product utilization during liver transplantation are not generally applicable to individual institutions owing to variability in patient population, intraoperative management, and definitions of MT...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28420893/scoliosis-in-patients-with-severe-cerebral-palsy-three-different-courses-in-adolescents
#4
Yoshiaki Oda, Tomoyuki Takigawa, Yoshihisa Sugimoto, Masato Tanaka, Hirofumi Akazawa, Toshifumi Ozaki
Patients with cerebral palsy (CP) frequently present with scoliosis; however, the pattern of curve progression is difficult to predict. We aimed to clarify the natural course of the progression of scoliosis and to identify scoliosis predictors. This was a retrospective, single-center, observational study. Total of 92 CP patients from Asahikawasou Ryouiku Iryou Center in Okayama, Japan were retrospectively analyzed. Cobb angle, presence of hip dislocation and pelvic obliquity, and Gross Motor Function Classification System (GMFCS) were investigated...
April 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/28414805/measurements-of-the-parapapillary-atrophy-zones-in-en-face-optical-coherence-tomography-images
#5
Atsuya Miki, Yasushi Ikuno, Robert N Weinreb, Junko Yokoyama, Tomoko Asai, Shinichi Usui, Kohji Nishida
OBJECTIVE: To measure the parapapillary atrophy (PPA) area in en face images obtained with swept-source optical coherence tomography (SS-OCT), and to evaluate its relationship to glaucoma, myopia, and age in non-highly myopic subjects. DESIGN: Retrospective, cross-sectional study. PARTICIPANTS: Fifty eyes of 30 subjects with open-angle glaucoma (G group) and forty-three eyes of 26 healthy control subjects (C group). Eyes with high myopia (spherical equivalent refractive error ≤ -8 diopters or axial length ≥ 26...
2017: PloS One
https://www.readbyqxmd.com/read/28410109/classification-via-sparse-representation-of-steerable-wavelet-frames-on-grassmann-manifold-application-to-target-recognition-in-sar-image
#6
Ganggang Dong, Gangyao Kuang, Na Wang, Wei Wang
Automatic target recognition has been studied widely over the years, yet it is still an open problem. The main obstacle consists in extended operating conditions, e.g., depression angle change, configuration variation, articulation, occlusion. To deal with them, this paper proposes a new classification strategy. We develop a new representation model via the steerable wavelet frames. The proposed representation model is entirely viewed as an element on Grassmann manifolds. To achieve target classification, we embed Grassmann manifolds into an implicit Reproducing Kernel Hilbert Space (RKHS), where the kernel sparse learning can be applied...
April 7, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28401164/dental-age-in-orthodontic-patients-with-different-skeletal-patterns
#7
Tomislav Lauc, Enita Nakaš, Melina Latić-Dautović, Vildana Džemidžić, Alisa Tiro, Ivana Rupić, Mirjana Kostić, Ivan Galić
Objective. To evaluate the difference between chronological and dental age, calculated by Willems and Cameriere methods, in various skeletal patterns according to Steiner's ANB Classification. Methods. This retrospective cross-sectional study comprised the sample of 776 participants aged between 7 and 15 years (368 males and 408 females). For each participant, panoramic images (OPT) and laterolateral cephalograms (LC) were collected from the medical database. On LC ANB angle was measured; on OPT dental age (DA) was calculated while chronological age (CA) and sex were recorded...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28389135/a-contemporary-definition-of-hip-dysplasia-and-structural-instability-toward-a-comprehensive-classification-for-acetabular-dysplasia
#8
Geoffrey P Wilkin, Mazen M Ibrahim, Kevin M Smit, Paul E Beaulé
Hip dysplasia has long been known to be a risk factor for pain and degenerative changes in the hip joint. The diagnosis of dysplasia has historically been based on assessments of acetabular anatomy on the anteroposterior pelvic radiograph, most commonly the lateral center-edge angle. Recent advances in imaging of the dysplastic hip with computerized tomography scans have demonstrated that hip dysplasia is in fact a 3-dimensional (D) deformity of the acetabulum and that multiple patterns of hip instability exist that may not be completely assessed on 2D imaging...
March 3, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28383835/-how-i-explore-%C3%A2-a-dento-maxillofacial-dysmorphosis
#9
V Urbain, Y Gilon, A Bruwier, J-L Nizet
Dento-maxillofacial dysmorphoses represent a considerable area of maxillofacial surgery. Their incidence has constantly been on the rise since the beginning of the century. This can be explained by variations in the food and society habits.We will first discuss the various causes (congenital and environnemental) and the pathophysiology of these disorders. Then, we will separate them according to the skeletal and Angle's classifications. We will examine the predictive criteria of these dysmorphoses from the youngest age and consider their clinical and cephalometrical diagnosis...
September 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28377644/finite-element-analysis-of-sagittal-balance-in-different-morphotype-forces-and-resulting-strain-in-pelvis-and-spine
#10
REVIEW
Vincenzo Filardi, Portaro Simona, Giorgio Cacciola, Salvatore Bertino, Luigi Soliera, Andrea Barbanera, Alessandro Pisani, Demetrio Milardi, Bramanti Alessia
In humans, vertical posture acquisition caused several changes in bones and muscles which can be assumed as verticalization. Pelvis, femur, and vertebral column gain an extension position which decreases muscular work by paravertebral muscles in the latter. It's widely known that six different morphological categories exist; each category differs from the others by pelvic parameters and vertebral column curvatures. Both values depend on the Pelvic Incidence, calculated as the angle between the axes passing through the rotation centre of the two femur heads and the vertical axis passing through the superior plate of the sacrum...
June 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28376676/evaluation-of-maxillary-sinus-volume-and-dimensions-in-different-vertical-face-growth-patterns-a-study-of-cone-beam-computed-tomography
#11
Rıdvan Okşayan, Oral Sökücü, Seher Yeşildal
OBJECTIVE: This study aimed to compare sinus volume and dimensions in patients with high-, low-, and normal-angle vertical growth patterns using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: According to skeletal vertical face growth patterns, 60 adults (31 female, 29 male, average age: 29.90 ± 10.91 years) were divided into three groups equally: high-angle, low-angle, and normal-angle groups. Cephalometric tracings were obtained from CBCT images and SN-GoGn (angle between Sella-Nasion line and Gonion-Gnathion line) cephalometric angular measurements used for the classification of skeletal vertical pattern evaluations...
April 4, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28376040/spectral-domain-optical-coherence-tomography-features-in-different-stages-of-best-vitelliform-macular-dystrophy
#12
Maurizio Battaglia Parodi, Pierluigi Iacono, Francesco Romano, Francesco Bandello
PURPOSE: To provide a systematic classification of findings regarding the different stages of vitelliform macular dystrophy on spectral domain optical coherence tomography (SD-OCT). METHODS: Ninety-four eyes of 47 patients were recruited in a prospective cross-sectional study. All patients underwent a complete ophthalmologic examination, including best-corrected visual acuity using Early Treatment Diabetic Retinopathy Study (ETDRS) charts, biomicroscopy, and SD-OCT...
April 3, 2017: Retina
https://www.readbyqxmd.com/read/28375911/trigeminal-neuralgia
#13
Giorgio Cruccu
PURPOSE OF REVIEW: Although trigeminal neuralgia is well known to neurologists, recent developments in classification and clinical diagnosis, new MRI methods, and a debate about surgical options necessitate an update on the topic. RECENT FINDINGS: Currently, a worldwide controversy exists regarding the classification, diagnostic process, and surgical treatment of trigeminal neuralgia. This controversy has been caused on one side by the recognition that some 50% of patients with trigeminal neuralgia, apart from characteristic paroxysmal attacks, also have continuous pain in the same territory, which results in greater diagnostic difficulties and is associated with a lower response to medical and surgical treatments...
April 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28375895/the-relationship-between-subluxation-percentage-of-the-femoroacetabular-joint-and-acetabular-width-in-asian-women-with-developmental-dysplasia-of-the-hip
#14
Yaichiro Okuzu, Koji Goto, Tomotoshi Kawata, Kazutaka So, Yutaka Kuroda, Shuichi Matsuda
BACKGROUND: Implantation of the acetabular cup insert in the "true" location of the acetabulum is a fundamental principle of total hip arthroplasty for the treatment of secondary osteoarthritis due to developmental dysplasia of the hip (DDH). As knowledge of the morphology of the acetabulum is required for accurate placement, we investigated the relationship between acetabular width and the Crowe classification of subluxation percentage of the hip. We also analyzed factors associated with the acetabular width ratio (AWR), defined as the acetabular width of the dysplastic hip divided by that of the unaffected, contralateral hip...
April 5, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28373079/temporary-short-segment-pedicle-screw-fixation-for-thoracolumbar-burst-fractures-comparative-study-with-or-without-vertebroplasty
#15
Hiroyuki Aono, Keisuke Ishii, Hidekazu Tobimatsu, Yukitaka Nagamoto, Shota Takenaka, Masayuki Furuya, Horii Chialki, Motoki Iwasaki
BACKGROUND CONTEXT: Short-segment posterior spinal instrumentation for thoracolumbar burst fracture provides superior correction of kyphosis by an indirect reduction technique, but it has a high failure rate. PURPOSE: The purpose of the study we report here was to compare outcomes for temporary short-segment pedicle screw fixation with vertebroplasty and for such fixation without vertebroplasty STUDY DESIGN: Prospective multicenter comparative study. PATIENT SAMPLE: We studied 62 consecutive patients with thoracolumbar burst fracture who underwent short-segment posterior instrumentation using ligamentotaxis with Schanz screws with or without vertebroplasty...
March 31, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28372967/is-the-two-dimensional-computed-tomography-scan-analysis-reliable-for-coracoid-graft-positioning-in-latarjet-procedures
#16
Johannes Barth, Lionel Neyton, Pierre Métais, Jean-Claude Panisset, Laurent Baverel, Gilles Walch, Laurent Lafosse
BACKGROUND: The aim of the study was to develop a computed tomography (CT)-based measurement protocol for coracoid graft (CG) placement in both axial and sagittal planes after a Latarjet procedure and to test its intraobserver and interobserver reliability. METHODS: Fifteen postoperative CT scans were included to assess the intraobserver and interobserver reproducibility of a standardized protocol among 3 senior and 3 junior shoulder surgeons. The evaluation sequence included CG positioning, its contact area with the glenoid, and the angle of its screws in the axial plane...
March 31, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28372860/treatment-patterns-for-myopic-choroidal-neovascularization-in-the-united-states-analysis-of-the-iris-registry
#17
Jeffrey Willis, Lawrence Morse, Susan Vitale, David W Parke, William L Rich, Flora Lum, Ronald A Cantrell
PURPOSE: To characterize treatment patterns and outcomes in eyes with treatment-naïve myopic choroidal neovascularization (mCNV) in the United States. DESIGN: Retrospective cohort study. PARTICIPANTS: Individuals aged 18 years and older seen in clinics participating in the American Academy of Ophthalmology's IRIS (Intelligent Research in Sight) Registry. METHODS: We analyzed data from the IRIS Registry, from January 1, 2012 to December 31, 2014, to identify cases of treatment-naïve mCNV, which was defined as the presence of myopic refractive error worse than -6...
March 31, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28371786/assessment-of-gait-characteristics-in-total-knee-arthroplasty-patients-using-a-hierarchical-partial-least-squares-method
#18
Wei Wang, David Ackland, Jodie McClelland, Kate E Webster, Saman Halgamuge
Quantitative gait analysis is an important tool in objective assessment and management of total knee arthroplasty (TKA) patients. Studies evaluating gait patterns in TKA patients have tended to focus on discrete data such as spatiotemporal information, knee range of motion and peaks in kinematics and kinetics, or consider selected principal components of gait waveforms for analysis. These strategies may not have the capacity to capture small variations in gait patterns associated with each joint across an entire gait cycle, and may ultimately limit the accuracy of gait classification...
March 30, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28371125/comparison-of-bleb-morphology-between-trabeculectomy-and-deep-sclerectomy-using-a-clinical-grading-scale-and-anterior-segment-optical-coherence-tomography
#19
Lawrence J Oh, Eugene Wong, Julie Lam, Colin I Clement
IMPORTANCE: This study highlights the role of the filtration bleb for IOP management following Trabeculectomy (TRAB) and deep sclerectomy (DS) in Glaucoma. BACKGROUND: This study serves to analyse the bleb morphology and IOP using the Indiana bleb appearance grading scale (IBAGS) and the anterior-segment optical coherence tomography (AS-OCT) postoperatively and at 3 months. DESIGN: Retrospective study by a single surgeon. PARTICIPANTS: 28 patients with open-angle glaucoma were recruited into the study, 14 in each of the TRAB (fornix) and DS groups...
March 30, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28370776/texture-analysis-of-parasitological-liver-fibrosis-images
#20
Luminiţa Moraru, Simona Moldovanu, Anisia-Luiza Culea-Florescu, Dorin Bibicu, Amira S Ashour, Nilanjan Dey
Liver fibrosis accurate staging is vital to define the state of the Schistosomiasis disease for further treatment. The present work analyzed the microscopic liver images to identify and to differentiate between healthy, cellular, fibrocellular, and fibrous liver pathologies by proposing a fast, robust, and highly discriminative method based on texture analysis. The multiclass classification based on the "one-versus- all" method that built a voting rule approach to classify the liver images based on the liver state...
March 29, 2017: Microscopy Research and Technique
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