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https://www.readbyqxmd.com/read/29656239/mechanical-alterations-of-the-bone-cartilage-unit-in-a-rabbit-model-of-early-osteoarthrosis
#1
Sarah Pragnère, Caroline Boulocher, Ophélie Pollet, Catherine Bosser, Aurélie Levillain, Magali Cruel, Thierry Hoc
OBJECTIVE: The purpose of this study was to assess mechanical properties along with microstructural modifications of the hyaline cartilage (HC), calcified cartilage (CC) and cortical plate (Ct.Pt), in an anterior cruciate ligament transection (ACLT) model. Medial femoral condyles of six healthy rabbits (control group) and of six ACLT rabbits 6 weeks after OA induction were explanted. The zone of interest (ZOI) for all experiments was defined as the weight bearing areas of the samples...
April 3, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29655650/surgical-treatment-of-lisfranc-injury-with-plantar-plate-approach
#2
Deepal Dalal, Christian Curry, Ryan Carter, Colin Zdenek, Nicholas W Todd, Shannon M Rush, Richard Jensen
Midfoot injuries are the second most common athletic foot injury documented in the published data. High-energy Lisfranc dislocations are commonly seen secondary to traumatic etiologies and disrupt the strong midfoot ligaments supporting the arch. These injuries require immediate surgical intervention to prevent serious complications such as compartment syndrome and amputation. The present case series reports a new Lapidus plate system used in 3 patients who underwent arthrodesis procedures for Lisfranc joint dislocation...
April 11, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29630005/an-exploration-of-equine-assisted-therapy-to-improve-balance-functional-capacity-and-cognition-in-older-adults-with-alzheimer-disease
#3
Thais Borges de Araujo, Wagner Rodrigues Martins, Marco Polo Freitas, Einstein Camargos, Jéssica Mota, Marisete Peralta Safons
BACKGROUND AND PURPOSE: Alzheimer disease (AD) is a chronic, progressive dementia syndrome that features cognitive and behavioral symptoms, as well as physical and functional limitations that develop over the course of the disease. As an activity that involves physical and cognitive aspects, equine-assisted therapy (EAT) could be a useful therapeutic approach in conditions that involve physical and cognitive decline. However, to date, there are no reports of the use of this therapy in participants with AD...
April 6, 2018: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29625468/the-role-of-wnt-%C3%AE-catenin-signaling-and-k-cadherin-in-the-regulation-of-intraocular-pressure
#4
Hannah C Webber, Jaclyn Y Bermudez, J Cameron Millar, Weiming Mao, Abbot F Clark
Purpose: Wnt/β-catenin signaling in the trabecular meshwork (TM) is required for maintaining normal intraocular pressure (IOP), although the mechanism(s) behind this are unknown. We hypothesize that Wnt/β-catenin signaling regulates IOP via β-catenin's effects on cadherin junctions. Methods: Nonglaucomatous primary human TM (NTM) cells were treated with or without 100 ng/ml Wnt3a, 1 μg/ml sFRP1, or both for 4 to 48 hours. Cells were immunostained for β-catenin, total cadherins, or cadherin isoforms...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29621425/age-related-changes-in-postural-sway-during-sit-to-stand-in-typical-children-and-children-with-cerebral-palsy
#5
Silvia Leticia Pavão, Ana Carolina de Campos, Nelci Adriana Cicuto Ferreira Rocha
OBJECTIVE: To assess age-related changes in postural sway during sit-to-stand (STS) in typical children (TC) and children with mild cerebral palsy (CP). METHODS: Thirty-five TC and 23 children with mild CP were allocated in four different age groups: 5-6, 7-9, 10-12, and 13-15 years; they all performed STS movements over a force plate. Anterior-posterior and medial-lateral amplitude of center of pressure (CoP) displacement, area and velocity of CoP sway were analyzed and compared between the age groups for TC and children with CP...
April 5, 2018: Journal of Motor Behavior
https://www.readbyqxmd.com/read/29621028/risk-of-perforation-is-high-during-corrective-reaming-of-retroverted-glenoids-a-computer-simulation-study
#6
Alexander W Aleem, Nathan D Orvets, Brendan C Patterson, Aaron M Chamberlain, Jay D Keener
BACKGROUND: Corrective anterior reaming is an accepted method for addressing retroversion in a biconcave retroverted (Walch classification, type B2) glenoid in anatomic total shoulder arthroplasty. However, concern still exists regarding early glenoid component failure in the setting of severe retroversion, which may be related to loss of component containment and/or violation of subchondral bone resulting from reaming. The goal of this study was to determine what characteristics of B2 glenoids are less amenable to corrective reaming by virtually implanting anatomic glenoid components...
April 4, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29610989/the-use-of-gait-analysis-in-the-assessment-of-patients-afflicted-with-spinal-disorders
#7
Ram Haddas, Kevin L Ju, Theodore Belanger, Isador H Lieberman
PURPOSE: Use gait analysis to establish and detail the clinically relevant components of normal human gait, analyze the gait characteristics for those afflicted with spinal pathology, and identify those aspects of human gait that correlate with pre- and postoperative patient function and outcomes. METHODS: Twenty patients with adult degenerative scoliosis (ADS), 20 patients with cervical spondylotic myelopathy (CSM), and 15 healthy volunteers performed over-ground gait trials with a comfortable self-selected speed using video cameras to measure patient motion, surface electromyography (EMG) to record muscle activity, and force plates to record ground reaction force (GRF)...
April 2, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29606040/decision-making-algorithm-for-minimally-invasive-approaches-to-anterior-skull-base-meningiomas
#8
Malte Ottenhausen, Kavelin Rumalla, Andrew F Alalade, Prakash Nair, Emanuele La Corte, Iyan Younus, Jonathan A Forbes, Atef Ben Nsir, Matei A Banu, Apostolos John Tsiouris, Theodore H Schwartz
OBJECTIVE Anterior skull base meningiomas are benign lesions that cause neurological symptoms through mass effect on adjacent neurovascular structures. While traditional transcranial approaches have proven to be effective at removing these tumors, minimally invasive approaches that involve using an endoscope offer the possibility of reducing brain and nerve retraction, minimizing incision size, and speeding patient recovery; however, appropriate case selection and results in large series are lacking. METHODS The authors developed an algorithm for selecting a supraorbital keyhole minicraniotomy (SKM) for olfactory groove meningiomas or an expanded endoscopic endonasal approach (EEA) for tuberculum sella (TS) or planum sphenoidale (PS) meningiomas based on the presence or absence of olfaction and the anatomical extent of the tumor...
April 2018: Neurosurgical Focus
https://www.readbyqxmd.com/read/29603703/radiographic-assessment-of-anatomy-of-nasopalatine-canal-for-dental-implant-placement-a-cone-beam-computed-tomographic-study
#9
Jaligama B Rao, Pramod Tatuskar, Ashwini Pulla, Naveen Kumar, Swati C Patil, Ila Tiwari
AIM: The aim of this study is to assess the morphology of nasopalatine canal (NPC) with cone beam computed tomography (CBCT). MATERIALS AND METHODS: A total of 460 subjects of both genders were subjected to CBCT with NewTom machine, and sagittal and coronal sections were used for evaluation of the shape of NPC and width of buccal cortical plate. Types of NPC were also assessed. RESULTS: Of 460 subjects, males were 210 and females were 250...
March 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29593378/comparative-study-of-induced-changes-in-effective-lens-position-and-refraction-after-nd-yag-laser-capsulotomy-according-to-intraocular-lens-design
#10
Tiago Monteiro, Andreia Soares, Ricardo Dourado Leite, Nuno Franqueira, Fernando Faria-Correia, Fernando Vaz
Purpose: To evaluate and compare the changes in refraction and effective intraocular lens (IOL) position between a plate-haptic IOL and a c-loop single-piece IOL after neodymium-doped yttrium aluminium garnet (YAG) laser posterior capsulotomy. Methods: In a prospective study, anterior chamber depth and subjective refraction were measured in 110 pseudophakic eyes from 110 patients, before and 1 month after YAG laser capsulotomy. Patients were divided into 2 groups according to the IOL design: group 1 (plate-haptic acrylic hydrophilic AT LISA tri 839MP® ) and group 2 (c-loop acrylic hydrophobic single-piece AcrySof® SA60AT)...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29592781/no-requirement-of-interlukine-1-for-long-term-potentiation-in-the-anterior-cingulate-cortex-of-adult-mice
#11
Jing-Shan Lu, Qian Song, Ming-Ming Zhang, Min Zhuo
Background The enhanced expression of cytokines in the pathological states suggests that they have important roles in the initiation or maintenance of disease states. FINDINGS: To determine the involvement of cytokines in chronic neuropathic pain, the expression of cytokines in the anterior cingulate cortex neurons in the ligation of the common peroneal nerve mice was investigated. We utilized a cytokine enzyme-linked immunosorbent assay plate array to detect 23 cytokines in total eight mice including a female, and no significant differences were found in those cytokines between the common peroneal nerve model and sham surgery mice...
January 2018: Molecular Pain
https://www.readbyqxmd.com/read/29589046/-surgical-therapy-of-ischiofemoral-impingement-by-lateralizing-intertrochanteric-osteotomy
#12
REVIEW
C Suren, R Burgkart, I J Banke, G Hertel, J Schauwecker, R von Eisenhart-Rothe, H Gollwitzer
OBJECTIVE: Lateralizing, derotating intertrochanteric varus osteotomy to increase the ischiofemoral space to counter painful impingement of the lesser trochanter and the os ischium with resulting entrapment of quadratus femoris muscle. INDICATIONS: Symptomatic ischiofemoral impingement (IFI) caused by Coxa valga et antetorta, Coxa valga or Coxa antetorta, or a short femoral neck. CONTRAINDICATIONS: Anatomic configuration suggestive of IFI in asymptomatic patients...
March 27, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29588241/facet-joint-fixation-and-alif-dlif-or-tlif-for-treatment-of-degenerative-lumbar-disc-diseases-retrospective-cohort-study-of-a-new-minimally-invasive-technique
#13
Evgenii Belykh, Andrey A Kalinin, Nikolay L Martirosyan, Talgat Kerimbayev, Nicholas Theodore, Mark C Preul, Vadim A Byvaltsev
BACKGROUND: Anterior, direct lateral and transforaminal lumbar interbody fusions (ALIF, DLIF, and TLIF) are usually combined with posterior fixation to treat degenerative spinal diseases. Outcomes of ALIF, TLIF, or DLIF combined with a new wedge-shaped, interfacet cage-plate have not been reported. We assessed early clinical outcomes of patients treated with interbody fusion and facet fixation using a titanium wedge-shaped cage-plate. METHODS: This retrospective observational cohort study included patients (n=80) who underwent 1-level interbody fusion and facet joint fixation via ALIF (n=24) or DLIF (n=26) with bilateral facet fixation or TLIF with ipsilateral pedicle screws and contralateral facet fixation (n=30)...
March 24, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29587491/graft-free-glaucoma-drainage-device-implantation-short-tunnel-small-flap-technique
#14
Mohammad Pakravan, Vahid Reza Hekmat, Parto Pakravan, Kiana Hassanpour, Hamed Esfandiari
PURPOSE: To introduce a new technique of short tunnel small flap graft-free glaucoma drainage device implantation and report our early experience. METHODS: In a retrospective study, patients with uncontrolled primary open-angle glaucoma underwent short tunnel small flap graft-free Ahmed glaucoma valve implantation. In this technique, plate is sutured 8-10 mm posterior to the limbus and a partial thickness flap is made at 1 or 11 o'clock position, 1 mm posterior the limbus...
March 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29587200/urban-residents-response-to-and-evaluation-of-low-carbon-travel-policies-evidence-from-a-survey-of-five-eastern-cities-in-china
#15
Jichao Geng, Ruyin Long, Hong Chen, Qianwen Li
To address the problems of excessive energy consumption and global climate change, the Chinese government has issued numerous policies to guide urban residents' low-carbon travel behavior. To evaluate the validity of these policies from the perspective of public opinion, this study summarizes 22 policies from the four vantage points of economics, administration, technology, and public information and then measures residents' response to and evaluation of policies based on survey data on 1977 urban residents using stratified random sampling in five cities in eastern China...
March 24, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29578381/stride-length-the-impact-on-propulsion-and-bracing-ground-reaction-force-in-overhand-throwing
#16
Dan K Ramsey, Ryan L Crotin
Propulsion and bracing ground reaction force (GRF) in overhand throwing are integral in propagating joint reaction kinetics and ball velocity, yet how stride length effects drive (hind) and stride (lead) leg GRF profiles remain unknown. Using a randomised crossover design, 19 pitchers (15 collegiate and 4 high school) were assigned to throw 2 simulated 80-pitch games at ±25% of their desired stride length. An integrated motion capture system with two force plates and radar gun tracked each throw. Vertical and anterior-posterior GRF was normalised then impulse was derived...
March 26, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29565956/neonatal-sleep-restriction-increases-nociceptive-sensitivity-in-adolescent-mice
#17
Paula Araujo, Cesar A Coelho, Maria G Oliveira, Sergio Tufik, Monica L Andersen
BACKGROUND: Sleep loss in infants may have a negative effect on the functional and structural development of the nociceptive system. We tested the hypothesis that neonatal sleep restriction induces a long-term increase of pain-related behaviors in mice and that this hypersensitivity occurs due to changes in the neuronal activity of nociceptive pathways. OBJECTIVES: We aim to investigate the effects of sleep loss in neonatal mice on pain behaviors of adolescent and adult mice in a sex-dependent manner...
March 2018: Pain Physician
https://www.readbyqxmd.com/read/29564221/orthodontic-and-orthopedic-treatment-for-a-growing-patient-with-tessier-number-0-cleft
#18
Seung-Hak Baek, Yoon-Hee Park, Jee Hyeok Chung, Sukwha Kim, Jin-Young Choi
The purpose of this case report was to introduce the concept of orthodontic and orthopedic treatment for a growing patient with Tessier number 0 cleft. A 5-year-old boy patient with Tessier number 0 cleft presented congenitally missing maxillary central incisors (MXCI), a bony defect at the premaxilla, a constricted maxillary arch, an anterior openbite, and maxillary hypoplasia. His treatment was divided into three stages: management of the bony defect at the premaxilla and the congenitally missing MXCIs using a fan-type expansion plate, iliac bone grafting, and eruption guidance of the maxillary lateral incisors into the graft area for substitution of MXCIs; management of the maxillary hypoplasia using sequential facemask therapy with conventional and skeletal anchorage; and management of the remaining occlusal problems using fixed orthodontic treatment...
March 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/29558996/management-of-irreducible-unilateral-facet-joint-dislocations-in-subaxial-cervical-spine-two-case-reports-and-a-review-of-the-literature
#19
Yu Zhou, Zhenyu Zhou, Lifeng Liu, Xuecheng Cao
BACKGROUND: Skeletal and soft tissue damage are often associated with unilateral facet dislocations, which undoubtedly lead to instability of the spine and further increase difficulties in cervical reduction. This type of irreducible facet dislocation is usually accompanied with potential catastrophic consequences including neurological deficit and severe disability. Therefore, a consistent and evidence-based treatment plan is imperative. CASE PRESENTATION: The literature regarding the management of traumatic unilateral locked cervical facet dislocations was reviewed...
March 21, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29558909/effect-of-number-and-position-of-intraocular-lens-haptics-on-anterior-capsule-contraction-a-randomized-prospective-trial
#20
Mihyun Choi, Marjorie Z Lazo, Minji Kang, Jeehye Lee, Choun-Ki Joo
BACKGROUND: The present study aimed to evaluate the degree of anterior capsule contraction (capsulorhexis contraction) with three different single-piece, hydrophilic acrylic intraocular lenses (IOLs). METHODS: Patients were prospectively randomized to be implanted with one of three types of IOLs during cataract surgery: the Ophtec Precizon (IOL A), the Lucid Korea Microflex (IOL B), and the Carl Zeiss Asphina (IOL C). One week, 2 weeks, and 6 months after surgery, the area of the anterior capsule opening was measured using digital retro-illumination images after dilation of the pupil...
March 20, 2018: BMC Ophthalmology
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