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https://www.readbyqxmd.com/read/28088070/fatigue-life-of-bovine-meniscus-under-longitudinal-and-transverse-tensile-loading
#1
Jaremy J Creechley, Madison E Krentz, Trevor J Lujan
The knee meniscus is composed of a fibrous extracellular matrix that is subjected to large and repeated loads. Consequently, the meniscus is frequently torn, and a potential mechanism for failure is fatigue. The objective of this study was to measure the fatigue life of bovine meniscus when applying cyclic tensile loads either longitudinal or transverse to the principal fiber direction. Fatigue experiments consisted of cyclic loads to 60%, 70%, 80% or 90% of the predicted ultimate tensile strength until failure occurred or 20,000 cycles was reached...
December 27, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28087556/ahead-study-an-observational-study-of-the-management-of-anticoagulated-patients-who-suffer-head-injury
#2
Suzanne Mason, Maxine Kuczawski, M Dawn Teare, Matt Stevenson, Steve Goodacre, Shammi Ramlakhan, Francis Morris, Joanne Rothwell
OBJECTIVES: Management of anticoagulated patients after head injury is unclear due to lack of robust evidence. This study aimed to determine the adverse outcome rate in these patients and identify risk factors associated with poor outcome. DESIGN: Multicentre, observational study using routine patient records. SETTING: 33 emergency departments in England and Scotland. PARTICIPANTS: 3566 adults (aged ≥16 years) who had suffered blunt head injury and were currently taking warfarin...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28087348/the-eyes-of-children-with-celiac-disease
#3
Arzu Seyhan Karatepe Hashas, Orhan Altunel, Eylem Sevınc, Necati Duru, Bedirhan Alabay, Yasemin Altuner Torun
PURPOSE: To determine possible eye involvement in pediatric patients with celiac disease. METHODS: Children (aged 5-18 years) with classic celiac disease and sex- and age-matched controls were included. In addition to a complete ophthalmologic examination, all patients were scanned by a Scheimpflug camera and spectral domain optical coherence tomography, and Schirmer and break-up time (BUT) tests were performed. Data were evaluated by paired t test, with a P value of <0...
January 10, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28087165/radiographic-comparison-of-adolescent-athletes-with-elbow-osteochondritis-dissecans-to-ulnar-collateral-ligament-injuries-and-controls
#4
Brian C Lau, Nirav K Pandya
BACKGROUND: There are excellent data supporting recommendations to prevent elbow injuries (osteochondritis dissecans [OCD] and ulnar collateral ligament [UCL] injuries), such as pitch count and pitch type in baseball, but anatomic risk factors have not been thoroughly examined. This study aimed to evaluate radiographic measurements in adolescents with elbow OCD lesions or UCL injuries and controls. METHODS: We retrospectively identified adolescent patients between 2011 and 2016 with isolated capitellum OCD, UCL tear, or normal elbows based on magnetic resonance imaging...
January 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28087164/anatomic-study-and-electromyographic-analysis-of-the-teres-minor-muscle
#5
Junichiro Hamada, Akimoto Nimura, Kunio Yoshizaki, Keiichi Akita
BACKGROUND: The teres minor muscle is a focused topic on the treatment of massive rotator cuff tears and reverse total shoulder arthroplasty. Its precise anatomy and function have not been completely investigated. The purposes of this study were to anatomically investigate the muscle and analyze electromyographic (EMG) activities during shoulder motion. METHODS: This anatomic study used 20 shoulders from deceased donors (mean age, 75.0 years). EMG data were recorded from 10 healthy volunteers (mean age, 21...
January 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28079395/diagnostic-performance-of-wrist-magnetic-resonance-mr-arthrography-comparison-of-three-dimensional-isotropic-t1-weighted-fast-spin-echo-mr-arthrography-and-two-dimensional-mr-arthrography
#6
Eunsun Oh, Young Cheol Yoon, Min Jong Park
OBJECTIVES: To compare the diagnostic performance of wrist direct magnetic resonance arthrography (D-MRA) with 2D T1-weighted fast spin-echo (FSE) and 3D isotropic T1-weighted FSE sequences for detecting triangular fibrocartilage (TFC) central perforations and scapholunate ligament (SLL) and lunotriquetral ligament (LTL) tears. METHODS: Twenty-six patients who had undergone preoperative wrist D-MRA with 2D and 3D isotropic T1-weighted FSE sequences and subsequent arthroscopic surgeries were included...
January 12, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28079022/lifitegrast-for-the-treatment-of-dry-eye-disease-results-of-a-phase-iii-randomized-double-masked-placebo-controlled-trial-opus-3
#7
Edward J Holland, Jodi Luchs, Paul M Karpecki, Kelly K Nichols, Mitchell A Jackson, Kenneth Sall, Joseph Tauber, Monica Roy, Aparna Raychaudhuri, Amir Shojaei
PURPOSE: Lifitegrast is a lymphocyte function-associated antigen-1 antagonist developed to reduce inflammation in dry eye disease (DED). We report the results of OPUS-3 (NCT02284516), a phase III study evaluating the efficacy and safety of lifitegrast versus placebo in participants with DED. DESIGN: Twelve-week, phase III, randomized, double-masked, multicenter, placebo-controlled study. PARTICIPANTS: Adults aged ≥18 years with Schirmer tear test (without anesthesia) ≥1 and ≤10 mm, corneal fluorescein staining score ≥2...
January 2017: Ophthalmology
https://www.readbyqxmd.com/read/28078849/effects-of-carbomer-eye-drops-in-combination-with-orthokeratology-lens-in-treating-adolescent-myopia
#8
Y H Shi, L T Zhou, C X Zhang, Y Z Li, J Z Zhang, H M Zhou, Y G Li, T Liu, L L Zhang, L N Sun, Z Chen
To investigate the effects of carbomer eye drops (CED) during long-time wearing of overnight orthokeratology lens of adolescents with myopia, 260 teenagers with myopia treated in the Henan Provincial People’s Hospital from June 2012 to August 2014 and followed-up for more than 2 years were enrolled. All the patients underwent regular fitting of orthokeratology lens. They were divided into a CED (Vidisic) group (130 cases, 260 eyes treated with CED) and rewetting drops (RD) (Baushe and Lomb) group (130 cases, 260 eyes treated with RD)...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078354/-tracheal-laceration-after-dilatational-tracheostomy-a-case-of-succesful-conservative-management
#9
L Eichler, M Simon, S Kluge
During bronchoscopically guided percutaneous dilatational tracheostomy, a 71-year-old woman suffered a long-stretched tear to the posterior tracheal wall. The injury was suspected to be caused by blunt trauma during dilation or cannula insertion, possibly aggravated by vigorous cuff inflation. Since the defect ended just 0.5 cm proximal to the main carina, placing a cuffed endotracheal tube beyond the injury was not an option. However, we decided for a conservative treatment approach by placing a cuffed endotracheal tube under bronchoscopic visualization in direct proximity to the cranial end of the laceration...
January 11, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28076600/use-of-cuff-tear-arthroplasty-head-prosthesis-for-rotator-cuff-arthropathy-treatment-in-elderly-patients-with-comorbidities
#10
Cassiano Diniz Carvalho, Carlos Vicente Andreoli, Alberto de Castro Pochini, Benno Ejnisman
Objective: To evaluate the clinical and functional behavior of patients undergoing cuff tear arthroplasty at different stages of the disease. Methods: Cuff tear arthroplasty hemiarthroplasties were performed in 34 patients with rotator cuff arthropathy and associated comorbidities, classified according to Seebauer. The mean age was 76.3 years, and the sample comprised 23 females (67.6%) and 11 males (32.4%). The mean follow-up period was 21.7 months, and evaluations were performed using the Visual Analog Scale for pain and the Constant scale...
October 2016: Einstein
https://www.readbyqxmd.com/read/28076573/dacryoliths-causing-intermittent-epiphora-associated-with-a-patent-lacrimal-system
#11
Yerena Muiños Díaz, Alicia Galindo-Ferreiro, Patricia M Akaishi
We present two patients with dacryoliths and patent lacrimal drainage with intermittent tearing and without infection. Dacryoliths can be present in the lacrimal sac or lacrimal duct without acute or chronic inflammation. In these cases, we believe dacryolith formation was a causative factor of intermittent epiphora even with a patent drainage system, and we propose that dacryoliths and even fungal colonization formation may be the first event before dacryocystitis and should be considered as a cause of epiphora...
November 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28076015/us-and-mr-imaging-of-pectoralis-major-injuries
#12
Yauk K Lee, Matt R Skalski, Eric A White, Anderanik Tomasian, Diane D Phan, Dakshesh B Patel, George R Matcuk, Aaron J Schein
During the past 2 decades, the frequency of pectoralis major muscle injuries has increased in association with the increased popularity of bench press exercises. Injury of the pectoralis major can occur at the muscle origin, muscle belly, musculotendinous junction, intratendinous region, and/or humeral insertion-with or without bone avulsion. The extent of the tendon injury ranges from partial to complete tears. Treatment may be surgical or conservative, depending on the clinical scenario and anatomic characteristics of the injury...
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28075154/survivorship-after-meniscal-allograft-transplantation-according-to-articular-cartilage-status
#13
Bum-Sik Lee, Seong-Il Bin, Jong-Min Kim, Won-Kyeong Kim, Jun Weon Choi
BACKGROUND: Clinical outcomes after meniscal allograft transplantation (MAT) in arthritic knees are unclear, and objective estimates of graft survival according to the articular cartilage status have not been performed. HYPOTHESIS: MAT should provide clinical benefits in knees with high-grade cartilage damage, but their graft survivorship should be inferior to that in knees with low-grade chondral degeneration after MAT. STUDY DESIGN: Cohort study; Level of evidence, 3...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28074776/morphological-classification-of-acromial-spur-correlation-between-rockwood-tilt-view-and-arthroscopic-finding
#14
Pinkawas Kongmalai, Adinun Apivatgaroon, Bancha Chernchujit
: Purpose and hypothesis: Acromion spur is the extrinsic factor for impingement syndrome and rotator cuff tear. The Rockwood tilt view can be used to evaluate prominence of the anterior acromion, however no study has shown the correlation of findings between the Rockwood tilt view and the arthroscopic finding. METHODS: We developed the arthroscopic classification of acromion spur as type 1 flat spur, type 2 bump spur, type 3 heel spur, type 4 keel spur, and type 5 irregular spur...
2017: SICOT-J
https://www.readbyqxmd.com/read/28073648/elevated-neutrophil-elastase-in-tears-of-ocular-graft-versus-host-disease-patients
#15
Samer N Arafat, Marie-Claude Robert, Tulio Abud, Sandra Spurr-Michaud, Francisco Amparo, Claes H Dohlman, Reza Dana, Ilene K Gipson
PURPOSE: To investigate the levels of neutrophil elastase (NE), matrix metalloproteinases (MMPs) and myeloperoxidase (MPO) in tear washes of patients with ocular graft-versus-host disease (oGVHD). DESIGN: Case-control study. METHODS: Based on established criteria, oGVHD patients (n = 14; 28 eyes) and age/sex-matched healthy controls (n = 14; 28 eyes) were enrolled. Tear washes were collected and analyzed for NE using a single-analyte enzyme-linked immunosorbent assay (ELISA)...
January 7, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28072709/tranexamic-acid-reduces-perioperative-blood-loss-of-posterior-lumbar-surgery-for-stenosis-or-spondylolisthesis-a-randomized-trial
#16
Houyin Shi, Yunsheng Ou, Dianming Jiang, Zhengxue Quan, Zenghui Zhao, Yong Zhu
BACKGROUND: A prospective, randomized, double-blind, placebo-controlled study was performed. The routine usage of TA in spinal surgery is controversial. Only a few studies have focused on patients undergoing posterior lumbar surgery for stenosis or spondylolisthesis, although a large clinical cohort exists in the population. This study aimed to evaluate the effect and safety of TA in reducing perioperative blood loss in posterior lumbar surgery for stenosis or spondylolisthesis. METHODS: 100 eligible patients out of 126 were randomized to receive either a bolus dose of 30 mg/kg TA i...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28072702/hypersomnia-due-to-injury-of-the-ventral-ascending-reticular-activating-system-following-cerebellar-herniation-a-case-report
#17
Sung Ho Jang, Chul Hoon Chang, Young Jin Jung, Hyeok Gyu Kwon
RATIONALE: We report on a patient with hypersomnia who showed injury of the lower ascending reticular activating system (ARAS) following cerebellar herniation due to a cerebellar infarct, detected on diffusion tensor tractography (DTT). PATIENT CONCERNS: A 53-year-old male patient was diagnosed as a left cerebellar infarct, and underwent decompressive suboccipital craniectomy due to brain edema at 2 days after the onset of a cerebellar infarct. Three weeks after onset when the patient started rehabilitation, he showed hypersomnia without impairment of consciousness; he fell asleep most of daytime without external stimulation and showed an abnormal score on the Epworth Sleepiness Scale: 15 (full score: 24, cut off for hypersomnia: 10)...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28072615/retinal-detachment-associated-with-peripapillary-staphyloma-imaged-with-swept-source-optical-coherence-tomography
#18
Daisuke Kunita, Makoto Inoue, Takashi Koto, Akito Hirakata
PURPOSE: To examine a rhegmatogenous retinal detachment (RRD) associated with a peripapillary staphyloma with swept source optical coherence tomography (SS-OCT) before and after vitrectomy and circumferential photocoagulation. METHODS: The SS-OCT images including the montage images of two patients with a RRD associated with peripapillary staphylomas were analyzed. A 34-year-old woman (Case 1) and a 70-year-old woman (Case 2) both noticed temporal visual field defects in their left eyes...
January 9, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28072595/fluoroquinolone-associated-muscle-tear-and-hematoma-a-case-report
#19
Ghulam Murtaza, Boonphiphop Boonpheng
No abstract text is available yet for this article.
December 28, 2016: American Journal of Therapeutics
https://www.readbyqxmd.com/read/28072552/vehicle-controlled-phase-2-clinical-trial-of-a-sustained-release-dexamethasone-intracanalicular-insert-in-a-chronic-allergen-challenge-model
#20
Gail Torkildsen, Mark B Abelson, Paul J Gomes, Eugene McLaurin, Susan L Potts, Francis S Mah
PURPOSE: To evaluate the efficacy and safety of a sustained-release dexamethasone intracanalicular insert (Dextenza™) in a model of allergic conjunctivitis. METHODS: This was a randomized, double-masked, vehicle-controlled, Phase 2 study. Subjects had to have a positive conjunctival allergen challenge (CAC) reaction to allergen (bilateral +2 itching and redness on 5-point, 0-4 scales) at Visit 1, and for 2 of 3 time points on subsequent visits. Subjects who met entry criteria were randomized to receive Dextenza or PV (vehicle insert)...
January 10, 2017: Journal of Ocular Pharmacology and Therapeutics
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