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https://www.readbyqxmd.com/read/28730295/incarceration-of-the-medial-collateral-ligament-in-the-intercondylar-notch-following-proximal-avulsion
#1
Edward Walton, Martin Williams, James R Robinson
Intra-articular entrapment of the medial collateral ligament (MCL) is a rare but recognised complication of traumatic injury to the posteromedial corner (PMC) of the knee. Considering the MCL is the most commonly injured ligament of the knee this complication is extremely rare with only a handful of cases describing MCL entrapment following distal avulsion of the MCL. We present the first known case of MCL entrapment following proximal avulsion of the MCL and posterior oblique ligament (POL) with the mid-substance of the MCL becoming entrapped in the joint, lying on the superior surface of the medial meniscus and extending up into the intercondylar notch...
July 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28728157/3-d-volume-assessment-of-the-corpus-callosum-and-cerebellar-vermis-using-various-volume-acquisition-and-post-processing-protocols
#2
Veronika Frisova, Martina Srutova, Jon Hyett
OBJECTIVES: To determine which 3-D techniques are most effective for "real time" prenatal ultrasound assessment of the corpus callosum and cerebellar vermis. METHODS: A prospective study involving 100 consecutive normal singleton pregnancies attending routine anomaly scan at 19-23 weeks' gestation. Midsagittal structures of the fetal brain were assessed using six different methods of 3-D image acquisition and three post-processing techniques. The quality of the resulting images were then assessed and scored by a second operator...
July 21, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28725386/the-coevolution-of-sexual-imprinting-by-males-and-females
#3
Miguel Angel Gómez-Llano, Eva María Navarro-López, Robert Tucker Gilman
Sexual imprinting is the learning of a mate preference by direct observation of the phenotype of another member of the population. Sexual imprinting can be paternal, maternal, or oblique if individuals learn to prefer the phenotypes of their fathers, mothers, or other members of the population, respectively. Which phenotypes are learned can affect trait evolution and speciation rates. "Good genes" models of polygynous systems predict that females should evolve to imprint on their fathers, because paternal imprinting helps females to choose mates that will produce offspring that are both viable and sexy...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28724820/a-rare-case-of-cleft-number-nine-associated-with-atypical-cleft-number-two
#4
Shivanand Chanabasu Bubanale, Santosh B Kurbet, Linda Maria Genoveva De Piedade Sequeira
The incidence of the craniofacial cleft is rare ranging between 1.43 and 4.85/100,000 births. Tessier number nine cleft being the rarest, there are a few reports of detailed ophthalmologic examinations performed in them. In this study, 1-day-old female neonate delivered by normal vaginal delivery at term, weighing 1480 g presented with right eye dystopia, cleft extending through the lateral third of the upper eyelid, brow ending at the temporal region, conjunctival congestion, clear cornea 10 mm in diameter, normal anterior chamber, pupil 2 mm reactive to light, clear lens, and normal fundus...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28723714/vent-incisions-to-facilitate-peripheral-unfolding-of-the-dmek-graft
#5
Christopher Liu, Alfonso Vasquez-Perez, Jordan Vassileff Chervenkoff, Venkata Avadhanam
PURPOSE: To present the results of 15 cases in which a modified technique of Descemet membrane endothelial keratoplasty (DMEK) with vent incisions was used to assist unfolding of tight peripheral inward folds. METHODS: This is a retrospective case series of 15 consecutive eyes that underwent a modified vent incision technique for DMEK. Six oblique, small-size (1 mm) vent incisions parallel to the limbus and 3.5 mm from the center were performed after descemetorhexis...
July 17, 2017: Cornea
https://www.readbyqxmd.com/read/28719918/-the-wish-for-a-child-in-the-case-of-permanent-infertility-development-of-the-german-questionnaire-on-attitudes-toward-motherhood
#6
Maike Fliegner, Hertha Richter-Appelt, Kerstin Krupp, Franziska Brunner
Study 1 Development of the questionnaire Most questionnaires on attitudes toward motherhood presume that the subject is fertile and positive and negative attitudes are represented on a one-dimensional scale. Moreover, the questionnaires often do not provide German versions and German norms. The aim of this study is to examine whether the German Questionnaire on Attitudes toward Motherhood ("FEMu") can be used to describe attitudes toward motherhood multi-dimensionally and whether it is applicable independent of a person's fertility status...
July 18, 2017: Psychotherapie, Psychosomatik, Medizinische Psychologie
https://www.readbyqxmd.com/read/28718748/motion-capture-depends-upon-the-common-fate-factor-among-elements
#7
Makoto Ichikawa, Yuko Masakura
When observers move the head backwards and forwards while fixating on the center of the concentric circles that consist of oblique lines, they see illusory rotation of those circles. If several dots are superimposed on the proximity to the inner concentric circles, observers see the illusory rotation not only for the circles but also for the superimposed dots. This illusory rotation of the dots is based on motion capture. In this study, in order to understand the basis of the motion capture, we examined how motion signal with different directions (rotation, expansion/contraction, and horizontal translation) in terms of motion on a display, as well as illusory motion signal from the oblique components, affects the motion capture...
January 1, 2017: Perception
https://www.readbyqxmd.com/read/28716535/variable-compensation-during-the-sit-to-stand-task-among-individuals-with-severe-knee-osteoarthritis
#8
Yoshimasa Sagawa, Alice Bonnefoy-Mazure, Stéphane Armand, Anne Lubbeke, Pierre Hoffmeyer, Domizio Suva, Katia Turcot
BACKGROUND: Individuals with knee osteoarthritis (OA) show variability during the sit-to-stand (STS) task, so they may not perform the STS in the same way. This study aimed to determine whether individuals with knee OA have different strategies in performing the STS. METHODS: Participants with knee OA and able-bodied individuals underwent STS evaluation at a self-selected pace with use of a motion measurement system consisting of 12 cameras and 2 force plates. RESULTS: In total, 101 participants (57 women) with knee OA showed 3 main STS strategies...
July 14, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28715372/high-resolution-episcopic-microscopy-hrem-simple-and-robust-protocols-for-processing-and-visualizing-organic-materials
#9
Stefan H Geyer, Barbara Maurer-Gesek, Lukas F Reissig, Wolfgang J Weninger
We provide simple protocols for generating digital volume data with the high-resolution episcopic microscopy (HREM) method. HREM is capable of imaging organic materials with volumes up to 5 x 5 x 7 mm(3) in typical numeric resolutions between 1 x 1 x 1 and 5 x 5 x 5 µm(3). Specimens are embedded in methacrylate resin and sectioned on a microtome. After each section an image of the block surface is captured with a digital video camera that sits on the phototube connected to the compound microscope head. The optical axis passes through a green fluorescent protein (GFP) filter cube and is aligned with a position, at which the bock holder arm comes to rest after each section...
July 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28715259/teaching-principal-components-using-correlations
#10
Peter H Westfall, Andrea L Arias, Larry V Fulton
Introducing principal components (PCs) to students is difficult. First, the matrix algebra and mathematical maximization lemmas are daunting, especially for students in the social and behavioral sciences. Second, the standard motivation involving variance maximization subject to unit length constraint does not directly connect to the "variance explained" interpretation. Third, the unit length and uncorrelatedness constraints of the standard motivation do not allow re-scaling or oblique rotations, which are common in practice...
July 17, 2017: Multivariate Behavioral Research
https://www.readbyqxmd.com/read/28714764/abdominal-hollowing-reduces-lateral-trunk-displacement-during-single-leg-squats-in-healthy-females-but-does-not-affect-peak-hip-abduction-angle-or-knee-abductio-angle-moment
#11
Lukas D Linde, Jessica Archibald, Eve C Lampert, John Z Srbely
CONTEXT: Females suffer 4-6 times more non-contact anterior cruciate ligament (ACL) injuries than males due to neuromuscular control deficits of the hip musculature leading to increases in hip adduction angle, knee abduction angle, and knee abduction moment during dynamic tasks such as single-leg squats. Lateral trunk displacement has been further related to ACL injury risk in females, leading to the incorporation of core strength/stability exercises in ACL preventative training programs...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28713735/an-assessment-of-factors-influencing-the-difficulty-in-third-molar-surgery
#12
Pavan Tenglikar, Ashwini Munnangi, Anand Mangalgi, Syed Furqhan Uddin, Santosh Mathpathi, Kundan Shah
BACKGROUND AND OBJECTIVES: Surgical removal of a mandibular impacted third molar is one among the most common oral surgical procedures. The objective of this study was to assess and identify risk indicators influencing extended operation time in relation to the surgical removal of mesioangular impacted mandibular third molar, position A, Class I and to evaluate the incidence of postoperative swelling, trismus, and pain. MATERIALS AND METHODS: A prospective cohort was implemented and the patients who presented for mandibular third molar removal which were impacted in position A, Class I were enlisted for the study...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28713055/anterior-and-nasal-transposition-of-inferior-oblique-muscle-in-cases-of-superior-oblique-palsy
#13
Rohit Saxena, Medha Sharma, Digvijay Singh, Pradeep Sharma
PURPOSE: To report long-term outcome of inferior oblique anterior and nasal transposition in superior oblique palsy. METHODS: The medical records of patients with superior oblique palsy who underwent inferior oblique anterior nasal transposition were reviewed retrospectively. A comprehensive ophthalmic evaluation, including prism bar cover test and measurement of torsion, was performed for all cases. One-year postoperative results were evaluated for alignment in primary gaze, contralateral gaze, and upgaze; reduction in inferior oblique overaction and changes in fundus torsion to assess long-term outcome of the procedure...
July 13, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28712993/decoding-the-orientation-of-contrast-edges-from-meg-evoked-and-induced-responses
#14
REVIEW
Dimitrios Pantazis, Mingtong Fang, Sheng Qin, Yalda Mohsenzadeh, Quanzheng Li, Radoslaw Martin Cichy
Visual gamma oscillations have been proposed to subserve perceptual binding, but their strong modulation by diverse stimulus features confounds interpretations of their precise functional role. Overcoming this challenge necessitates a comprehensive account of the relationship between gamma responses and stimulus features. Here we used multivariate pattern analyses on human MEG data to characterize the relationships between gamma responses and one basic stimulus feature, the orientation of contrast edges. Our findings confirmed we could decode orientation information from induced responses in two dominant frequency bands at 24-32 Hz and 50-58 Hz...
July 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28712801/the-effect-of-pelvic-tilt-and-femoral-head-size-on-hip-range-of-motion-to-impingement
#15
Thomas F McCarthy, Jim Nevelos, Randa K Elmallah, Morad Chughtai, Anton Khlopas, Vincent Alipit, Timothy C Wagner, Michael A Mont
BACKGROUND: About 50%-70% of dislocators have cups placed within so-called "safe zones." It has been postulated that factors such as femoral head size and pelvic tilt, obliquity, or rotation may influence postoperative stability. Therefore, we assessed varying degrees of pelvic tilt and head sizes on the range of motion (ROM) to impingement. METHODS: A hip simulator was used to import models of 10 subjects who performed object pickup, squatting, and low-chair rising...
June 15, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28710509/x-shaped-inferior-extensor-retinaculum-and-its-doubtful-use-in-the-br%C3%A3-strom-gould-procedure
#16
M Dalmau-Pastor, F Malagelada, G M M J Kerkhoffs, M C Manzanares, J Vega
PURPOSE: The inferior extensor retinaculum (IER) is an aponeurotic structure located in the anterior aspect of the ankle. According to the literature, it can be used to reinforce a repair of the anterior talofibular ligament in ankle instability. Despite its usual description as an Y-shaped structure, it is still unclear which part of the retinaculum is used for this purpose, or if it is instead the crural fascia that is being used. The purpose of this study is to define the anatomical characteristics of the IER to better understand its role in the Broström-Gould procedure...
July 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28710388/beam-propagation-management-in-a-fractional-schr%C3%A3-dinger-equation
#17
Changming Huang, Liangwei Dong
Generalization of Fractional Schrödinger equation (FSE) into optics is fundamentally important, since optics usually provides a fertile ground where FSE-related phenomena can be effectively observed. Beam propagation management is a topic of considerable interest in the field of optics. Here, we put forward a simple scheme for the realization of propagation management of light beams by introducing a double-barrier potential into the FSE. Transmission, partial transmission/reflection, and total reflection of light fields can be controlled by varying the potential depth...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28708912/finite-element-analysis-of-bone-stress-in-the-posterior-mandible-using-regular-and-short-implants-in-the-same-context-with-splinted-and-nonsplinted-prostheses
#18
Marcelo Bighetti Toniollo, Ana Paula Macedo, Denise Pupim, Danilo Zaparolli, Maria da Gloria Chiarello de Mattos
PURPOSE: The aim of this study was to compare the bone stress generated by rehabilitation using regular and short-length Morse taper implants (11 and 5 mm, respectively) in the same context and allied with splinted (SP) and nonsplinted (NSP) prostheses in the posterior area of the mandible using finite element analysis. MATERIALS AND METHODS: Three-dimensional geometric models using regular implants (Ø4 × 11 mm) and short implants (Ø4 × 5 mm) were simulated with a left posterior mandible that had the first premolar tooth and all teeth posterior to that premolar removed...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708910/influence-of-the-posterior-mandible-ridge-morphology-on-virtual-implant-planning
#19
German O Gallucci, Shirin Khoynezhad, Alfa I Yansane, Jacob Taylor, Daniel Buser, Bernard Friedland
PURPOSE: The purpose of this study was to examine the anatomy of the mandibular posterior region to develop an anatomical categorization for implant-prosthodontic planning. MATERIALS AND METHODS: Using cone beam computed tomography scans, 313 cross-sectional views of edentulous posterior mandibular sites were evaluated with respect to the anatomical ridge morphology. Virtual implant planning was performed, and the need for bone grafting was assessed. The level of complexity for planning implants in those positions was assessed...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28704331/mis-single-position-lateral-and-oblique-lateral-lumbar-interbody-fusion-and-bilateral-pedicle-screw-fixation-feasibility-and-perioperative-results
#20
Daniel J Blizzard, J Alex Thomas
STUDY DESIGN: Retrospective review of prospectively collected data of the first 72 consecutive patients treated with single-position one- or two-level lateral (LLIF) or oblique lateral interbody fusion (OLLIF) with bilateral percutaneous pedicle screw and rod fixation by a single spine surgeon. OBJECTIVE: To evaluate the clinical feasibility, accuracy, and efficiency of a single-position technique for LLIF and OLLIF with bilateral pedicle screw and rod fixation...
July 12, 2017: Spine
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