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https://www.readbyqxmd.com/read/29780957/optic-nerve-compression-as-a-late-complication-of-a-hydrogel-explant-with-silicone-encircling-band
#1
Niels Crama, Leo Kluijtmans, B Jeroen Klevering
Purpose: To present a complication of compressive optic neuropathy caused by a swollen hydrogel explant and posteriorly displaced silicone encircling band. Observations: A 72-year-old female patient presented with progressive visual loss and a tilted optic disc. Her medical history included a retinal detachment in 1993 that was treated with a hydrogel explant under a solid silicone encircling band. Visual acuity had decreased from 6/10 to 6/20 and perimetry showed a scotoma in the temporal superior quadrant...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29777133/selective-improvements-in-balancing-associated-with-offline-periods-of-spaced-training
#2
Antonino Casabona, Maria Stella Valle, Carlo Cavallaro, Gabriele Castorina, Matteo Cioni
Benefits from post-training memory processing have been observed in learning many procedural skills. Here, we show that appropriate offline periods produce a performance gain during learning to stand on a multiaxial balance board. The tilt angle and the area of sway motion of the board were much more reduced in participants performing a training spaced by an interval of one day with respect to participants executing the same amount of practice over a concentrated period. In particular, offline memory encoding was specifically associated with the motion along the anterior-posterior direction, the spatio-temporal dynamics, and the frequency contents of the board sway...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29752153/acromial-roof-in-patients-with-concentric-osteoarthritis-and-massive-rotator-cuff-tears-multiplanar-analysis-of-115-computed-tomography-scans
#3
Silvan Beeler, Anita Hasler, Jonas Getzmann, Lizzy Weigelt, Dominik C Meyer, Christian Gerber
BACKGROUND: There is evidence for differences of scapular shape between shoulders with rotator cuff tears (RCT) and osteoarthritic shoulders (OA). This study analyzed orientation and shape of the acromion in patients with massive RCT and concentric OA (COA) in a multiplanar computed tomography (CT) analysis. METHODS: CT scans of 70 shoulders with degenerative RCT and 45 shoulders with COA undergoing primary shoulder arthroplasty were analyzed. The 2 groups were compared in relation of (1) shape of the acromion, (2) its orientation in space, and (3) the anteroposterior glenoid coverage in relation to the scapular plane...
May 8, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29747365/-a-preliminary-observation-of-implanting-a-double-eyelet-capsular-tension-ring-in-eyes-with-serious-lens-subluxation
#4
B Zhang, Y Q Huang, Q Z Cao, J Q Lin, Y Y Wang, D Y Zheng
Objective: To evaluate the clinical efficiency of an iris hook combined with a modified double-eyelet capsular tension ring (MCTR) in the treatment of serious lens subluxation. Methods: Retrospective case series. A total of 16 patients (20 eyes) with serious lens subluxation were enrolled in Zhongshan Ophthalmic Center from March 2016 to December 2016. All the patients had an iris hook inserted to support the capsule during the phacoemulsification. Then an MCTR was implanted and sutured onto the sclera. Both intraoperative and postoperative complications, such as posterior capsular opacification and macular edema, were recorded...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29730457/anterior-posterior-length-discrepancy-of-the-spinal-column-in-adolescent-idiopathic-scoliosis-a-3d-ct-study
#5
Rob C Brink, Tom P C Schlösser, Marijn van Stralen, Koen L Vincken, Moyo C Kruyt, Steve C N Hui, Max A Viergever, Winnie C W Chu, Jack C Y Cheng, René M Castelein
BACKGROUND CONTEXT: One of the characteristics of reported observations in adolescent idiopathic scoliosis (AIS) is that the thoracic spine is longer anteriorly than posteriorly, more pronounced around the apex than the transitional zones. This reversal of the normal kyphotic anatomy of the thoracic spine is related to questions of etiopathogenesis of AIS. The changes in the anatomy of the anterior column have been described rather in detail, however, the role of the posterior spinal column and the laminae has so far not been elucidated...
May 3, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29726791/postoperative-changes-in-sagittal-spinopelvic-alignment-in-sitting-position-in-adolescents-with-idiopathic-thoracic-scoliosis-treated-with-posterior-fusion-an-initial-analysis
#6
Weiguo Zhu, Zhen Liu, Shifu Sha, Jing Guo, Hongda Bao, Leilei Xu, Yong Qiu, Zezhang Zhu
OBJECTIVE Previous studies have reported spinal straightening and pelvic retroversion when changing from erect to sitting posture in patients with adolescent idiopathic scoliosis (AIS), which were thought to be related to low-back pain after sitting for long periods. However, the sitting sagittal alignment after posterior spinal fusion has not been evaluated. This study aims to assess the influence of posterior fusion surgery upon sitting sagittal spinopelvic alignment in adolescents with idiopathic thoracic curves (thoracic AIS [T-AIS])...
May 4, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29713416/relationship-between-displacement-of-the-psoas-major-muscle-and-spinal-alignment-in-patients-with-adult-spinal-deformity
#7
Yoshiaki Oda, Tomoyuki Takigawa, Ryo Ugawa, Yasuyuki Shiozaki, Haruo Misawa, Yoshihisa Sugimoto, Masato Tanaka, Toshifumi Ozaki
Study Design: Cross sectional study. Purpose: To clarify the difference in position of the psoas muscle between adult spinal deformity (ASD) and lumbar spinal stenosis (LSS). Overview of Literature: Although it is known that the psoas major muscle deviates in ASD patients, no report is available regarding the difference in comparison with LSS patients. Methods: This study investigates 39 patients. For evaluating spinal alignment, pelvic tilt (PT), pelvic incidence (PI), sacral slope, lumbar lordosis (LL), PI-LL, Cobb angle, and the convex side, the lumbar curves were measured...
April 2018: Asian Spine Journal
https://www.readbyqxmd.com/read/29713412/reciprocal-changes-in-sagittal-alignment-in-adolescent-idiopathic-scoliosis-patients-following-strategic-pedicle-screw-fixation
#8
Srikanth Reddy Dumpa, Ajoy Prasad Shetty, Siddharth N Aiyer, Rishi Mugesh Kanna, S Rajasekaran
Study Design: Retrospective observational study. Purpose: To analyze the effect of low-density (LD) strategic pedicle screw fixation on the correction of coronal and sagittal parameters in adolescent idiopathic scoliosis (AIS) patients. Overview of Literature: LD screw fixation achieves favorable coronal correction, but its effect on sagittal parameters is not well established. AIS is often associated with decreased thoracic kyphosis (TK), and the use of multi-level pedicle screws may result in further flattening of the sagittal profile...
April 2018: Asian Spine Journal
https://www.readbyqxmd.com/read/29713340/supine-percutaneous-nephrolithotripsy-in-double-s-position
#9
Giuseppe Giusti, Antonello De Lisa
Background: At present, the percutaneous nephrolithotripsy (PCNL) is performed both in supine and in prone position. The aim of this paper is to describe an innovative position during PCNL. Methods: We describe a supine position. The patient's legs are slightly abducted at the hips. The thorax is laterally tilted (inclination 30°-35°) and kept in the right position by one or two gel pads placed between the scapula and the vertebrae. External genitalia can be accessed at any time, so that it is always possible to use flexible instruments in the upper urinary tract...
2018: Advances in Urology
https://www.readbyqxmd.com/read/29709551/predictive-model-for-distal-junctional-kyphosis-after-cervical-deformity-surgery
#10
Peter G Passias, Dennis Vasquez-Montes, Gregory W Poorman, Themistocles Protopsaltis, Samantha R Horn, Cole A Bortz, Frank Segreto, Bassel Diebo, Chris Ames, Justin Smith, Virginie LaFage, Renaud LaFage, Eric Klineberg, Chris Shaffrey, Shay Bess, Frank Schwab
BACKGROUND CONTEXT: Distal Junctional Kyphosis (DJK) is a primary concern of surgeons correcting cervical deformity. Identifying patients and procedures at higher risk for developing this condition is paramount in improving patient selection and care. PURPOSE: Develop a risk index for DJK development in the first year after surgery. STUDY DESIGN/SETTING: Retrospective review of a prospective multicenter cervical deformity database. PATIENT SAMPLE: Patients over the age of 18 meeting one of the following deformities: cervical kyphosis (C2-7 Cobb angle >10°), cervical scoliosis (coronal Cobb angle >10°), positive cervical sagittal imbalance (C2-C7 sagittal vertical axis >4cm or T1-C6 >10 o ), or horizontal gaze impairment (chin-brow vertical angle >25o )...
April 27, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29704746/examining-upper-limb-kinematics-and-dysfunction-of-breast-cancer-survivors-in-functional-dynamic-tasks
#11
Rebecca L Brookham, Alan C Cudlip, Clark R Dickerson
BACKGROUND: Comorbidities within the breast cancer population can reduce quality of life. Current breast cancer survivor upper limb kinematic strategies unfortunately lack robust connection with performing important activities of daily living. METHODS: Accordingly, fifty breast cancer survivors performed 88 dynamic tasks (divided into range of motion-reach, range of motion-rotate, activity of daily living, and work tasks). Humerothoracic and scapulothoracic angles were extracted from motion capture data...
April 13, 2018: Clinical Biomechanics
https://www.readbyqxmd.com/read/29704024/the-relationship-of-pelvic-incidence-to-post-operative-total-hip-arthroplasty-dislocation-in-patients-with-lumbar-fusion
#12
Philip J York, Alan S McGee, Chase S Dean, Justin E Hellwinkel, Christopher J Kleck, Michael R Dayton, Craig A Hogan
PURPOSE: To determine if lumbar fusion increases the risk of dislocation following total hip arthroplasty (THA) via a posterior approach and to investigate anatomic variables associated with this increased risk. METHODS: Five-year retrospective review of THAs performed through a posterior approach identifying cases of post-operative dislocation. Patients were grouped into those with or without previous lumbar spine fusion. Lumbar fusion patients were then further analyzed in terms of cup position, pelvic incidence, sacral slope, and pelvic tilt to determine if there were specific variables associated with the increased risk of dislocation...
April 28, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29700594/spatial-orientation-of-the-adult-cochlea-rotation-tilt-and-angle-theta-3
#13
Anita Satish Deshpande, Bruno Passebon Soares, Norman Wendell Todd
OBJECTIVE: Quantitative description in adult crania of (1) angular orientation of the basal turn of the cochlea relative to the sagittal (termed "rotation") and Frankfort horizontal (termed "tilt") planes, and angle theta 3 [angular relationship of the line defined by the cochlea's spiral center and cochlear (round) window, to the cochlear window]; (2) orientation of the cochlea relative to the plane defined by the horizontal and vertical portions of the facial nerve; (3) orientation of the basal turn of the cochlea relative to the plane of the posterior semicircular canal; and (4) the association of these orientations with the extent of mastoid pneumatization...
April 26, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29682552/prefabricated-bar-system-for-immediate-loading-in-edentulous-patients-a-5-year-follow-up-prospective-longitudinal-study
#14
Enrico F Gherlone, Gianpaolo Sannino, Andrea Rapanelli, Roberto Crespi, Giorgio Gastaldi, Paolo Capparé
Objectives: The aim of this clinical study was to evaluate a new type of prefabricated bar system, supported by axial and tilted implants at 5-year follow-up. Materials and Methods: Twenty-nine consecutive participants (19 females, 10 males) (mean age 61.4 years), edentulous in one or both jaws, with severe atrophy of the posterior regions, were treated according to the All-on-four® protocol with immediately loaded axial (64) and tilted (64) implants supporting complete-arch screw-retained prostheses (12 maxillary, 20 mandibular) featuring a prefabricated bar as framework...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29681880/exploring-the-role-of-temporoparietal-cortex-in-upright-perception-and-the-link-with-torsional-eye-position
#15
Jorge Otero-Millan, Ariel Winnick, Amir Kheradmand
Upright perception is a key aspect of orientation constancy, as we maintain a stable perception of the world despite continuous movements of our eyes, head, and body. Torsional position of the eyes can impact perception of upright by changing orientation of the images on the retina relative to gravity. Here, we investigated the role of temporoparietal cortex in upright perception with respect to ocular torsion, by means of the inhibitory effect of continuous theta burst transcranial magnetic stimulation (TMS)...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29680510/srs-schwab-grade-4-osteotomy-for-congenital-thoracolumbar-kyphosis-a-minimum-of-2-years-follow-up-study
#16
Benlong Shi, Qinghua Zhao, Liang Xu, Zhen Liu, Xu Sun, Zezhang Zhu, Yong Qiu
BACKGROUND: Several osteotomy techniques including pedicle subtraction osteotomy and vertebral column resection have been employed in the correction of congenital kyphosis (CK) and satisfying outcomes have been demonstrated. However, the SRS-Schwab Grade 4 osteotomy, defined as resection of posterior elements, partial vertebral body and superior adjacent disc, is rarely reported in the treatment of CK. PURPOSE: To evaluate the efficiency and safety of SRS-Schwab Grade 4 osteotomy in CK patients, and to propose its optimal indication...
April 19, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29677030/a-cadaveric-study-of-ultrasound-guided-maxillary-nerve-block-via-the-pterygopalatine-fossa-a-novel-technique-using-the-lateral-pterygoid-plate-approach
#17
Wirinaree Kampitak, Tanvaa Tansatit, Yasuyuki Shibata
BACKGROUND AND OBJECTIVES: This study aimed to describe and assess the accuracy and feasibility of a novel technique for ultrasound-guided maxillary nerve block using the lateral pterygoid plate (LPP) approach via the pterygopalatine fossa (PPF) in a soft cadaveric model. METHODS: Ten soft cadavers were studied. The curved array ultrasound transducer probe was applied over 1 side of the face of the cadavers in the open-mouth posture. It was placed transversely below the zygomatic arch for identifying the border of the maxillary tuberosity and the LPP...
April 19, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29665606/-organic-anxiety-disorder-in-posterior-cortical-atrophy
#18
Denise Linsmayer, Christoph Kindler, Wiebke Anheier, Julia Reiff, Per Suppa, Dieter F Braus
We report on a 54-year-old patient who described a progressive anxiety disorder additionally recurrent sight disorders associated with room-tilt illusions and subjective visual field defects. She also reported disturbances of concentration and attention and of a modified typeface accompanied by difficulty in writing with an increase of grammatical errors. Based on the case, the relevant anamnestic and clinical data, the neuropsychological and neuroimaging findings and also differential diagnosis of the posterior cortical atrophy, a rare neurodegenerative disease, will be discussed...
April 17, 2018: Psychiatrische Praxis
https://www.readbyqxmd.com/read/29663143/vertebral-body-osteonecrosis-proposal-of-a-treatment-oriented-classification-system
#19
Matteo Formica, Andrea Zanirato, Luca Cavagnaro, Marco Basso, Stefano Divano, Claudio Lamartina, Pedro Berjano, Lamberto Felli, Carlo Formica
PURPOSE: To present a classification system for vertebral body osteonecrosis (VBON) based on imaging findings and sagittal alignment and consequently to propose treatment guidelines. METHODS: Chart review and classification of imaging and clinical findings. An analysis of literature about VBON has been evaluated to conceive the classification. The current data allows to correlate radiological findings with different stages of the pathophysiological process and consequently to propose a patient-tailored treatment plan...
April 16, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29659436/a-novel-technique-of-ultrasound-guided-selective-mandibular-nerve-block-with-a-lateral-pterygoid-plate-approach-a-cadaveric-study
#20
Wirinaree Kampitak, Tanvaa Tansatit, Yasuyuki Shibata
BACKGROUND AND OBJECTIVES: We aimed to describe a novel technique of ultrasound-guided selective mandibular nerve block with a lateral pterygoid plate (LPP) approach and to assess its feasibility and accuracy in a soft cadaver model. METHODS: Ten soft cadavers were studied. A curved array ultrasound transducer was applied over 1 side of the face of the cadaver, in an open-mouth position. The transducer was placed transversely below the zygomatic arch and tilted in the caudal-to-cranial direction to identify the boundary of the LPP...
April 14, 2018: Regional Anesthesia and Pain Medicine
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