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https://www.readbyqxmd.com/read/29471516/optical-spectral-transmission-to-assess-inflammation-in-hand-and-wrist-joints-of-rheumatoid-arthritis-patients
#1
Nick J Besselink, Patricia van der Meijde, Wouter H J Rensen, Peter B L Meijer, Anne C A Marijnissen, Jacob M van Laar, Floris P J G Lafeber, Johannes W G Jacobs
Objective: To develop an optical spectral transmission (OST) model to measure joint inflammation, and thus disease activity, as well as to evaluate (patho-)physiological findings that could lead to misclassification of inflammation. Methods: Forty-six RA patients were included in this cross-sectional study, where US scores, duplicate OST measurements and 28-joint DAS (DAS28) were acquired. With US as a reference standard, the diagnostic performance of OST in detecting inflammation at the joint level was evaluated using receiver operating characteristic (ROC) curve analyses...
February 19, 2018: Rheumatology
https://www.readbyqxmd.com/read/29460389/the-remarkable-vocal-anatomy-of-the-koala-phascolarctos-cinereus-insights-into-low-frequency-sound-production-in-a-marsupial-species
#2
Roland Frey, David Reby, Guido Fritsch, Benjamin D Charlton
Koalas are characterised by a highly unusual vocal anatomy, with a descended larynx and velar vocal folds, allowing them to produce calls at disproportionately low frequencies. Here we use advanced imaging techniques, histological data, classical macroscopic dissection and behavioural observations to provide the first detailed description and interpretation of male and female koala vocal anatomy. We show that both males and females have an elongated pharynx and soft palate, resulting in a permanently descended larynx...
February 19, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29459572/a-rare-case-of-multiple-myxoma-involving-both-mitral-valve-leaflets
#3
Xiao-Dong Li, Yang Bai, Xiu-Mei Duan, Xiao-Cong Wang
Mitral valve myxoma is a very rare entity. Multiple myxomas with extensive involvement of the anterior and posterior leaflets of the mitral valve are exceedingly rare. We report a 58-year-old man who was admitted as sudden syncope. Thoracic echocardiography showed several masses adherent to the anterior and posterior leaflets and the mitral annulus with obvious mobility. Intraoperative probing revealed multiple tumors attached to the mitral annulus, valve leaflets, and tendinous cords. Mechanical mitral valve replacement was performed...
February 20, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29450206/restriction-of-passive-glenohumeral-abduction-combined-with-normal-passive-external-rotation-is-a-diagnostic-feature-of-calcific-tendinitis
#4
Anna Jungwirth-Weinberger, Christian Gerber, Glenn Boyce, Thorsten Jentzsch, Simon Roner, Dominik C Meyer
Background: Passive glenohumeral range of motion may be characteristically limited to specific shoulder pathologies. While pain associated with loss of range of passive external glenohumeral rotation is recognized as a salient feature in adhesive capsulitis, restriction of glenohumeral range of motion in calcific tendinitis of the supraspinatus tendon has never been studied. Hypothesis: On the basis of clinical observation, we hypothesized that calcific tendinitis of the supraspinatus tendon is associated with loss of passive glenohumeral abduction without loss of external rotation...
February 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29424327/-a-woman-with-spontaneous-neck-pain
#5
M Geerdes, S P Smook, T A von Schükkmann
A 42-year-old woman presented with neck pain without previous trauma. On suspicion of spondylodiscitis, an MRI of the cervical spine was made. This MRI and an additional CT showed calcific tendinitis of the longus colli muscle, a self-limiting disorder.
2018: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29423702/linburg-comstock-variation-histoanatomy-and-classification-of-the-connection-between-flexor-pollicis-longus-and-flexor-digitorum-profundus-to-the-index-finger
#6
Laphatrada Yurasakpong, Krai Meemon, Athikhun Suwannakhan
PURPOSE: The aim of the study was to investigate the anatomy and histology of Linburg-Comstock variation, or the anomalous connection between flexor pollicis longus and flexor digitorum profundus to the index finger, in Thai population. METHODS: One hundred and thirty cadaveric upper limbs were dissected. Skin and superficial fascia on the anterior distal forearm and hand were removed. The tendons of the flexor pollicis longus and flexor digitorum profundus to the index finger were identified for the possible occurrence of the intertendinous connection...
February 8, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29409407/complications-of-intramedullary-fixation-for-distal-radius-fractures-in-elderly-patients-a-retrospective-analysis-using-mckay-s-complication-checklist
#7
Takuma Wakasugi, Ritsuro Shirasaka, Toshiyuki Kawauchi, Koji Fujita, Atsushi Okawa
BACKGROUND: Intramedullary fixation for distal radius fractures is reported to be free of hardware irritation and less invasive than other fixation methods. Some specific complications associated with intramedullary fixation, such as radial nerve sensory neuritis, have been reported, but no study has focused on the complication rates of intramedullary fixation for distal radius fractures in the elderly population. Furthermore, no studies have analyzed common complications, such as carpal tunnel syndrome and flexor tenosynovitis including trigger finger, among patients with distal radius fractures treated by intramedullary fixation based on a comprehensive complication checklist...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29408642/comparative-outcomes-of-extracorporeal-shockwave-therapy-for-shoulder-tendinitis-or-partial-tears-of-the-rotator-cuff-in-athletes-and-non-athletes-retrospective-study
#8
Wen-Yi Chou, Ching-Jen Wang, Kuan-Ting Wu, Ya-Ju Yang, Jai-Hong Cheng, Shih-Wei Wang
BACKGROUND: Refractory shoulder tendinitis or partial thickness rotator cuff tears (PTRCTs) are common findings in overhead athletes. Previous studies have examined the effectiveness of extracorporeal shockwave therapy (ESWT) for shoulder tendinitis. MATERIALS AND METHODS: In the current study, we recruited 36 shoulders and performed a comparison between the professional athletes (13 shoulders, athletic group; AG) and the non-athletic population (23 shoulders, non-athletic group, NAG) with PTRCTs or shoulder tendinitis of the shoulder after ESWT...
February 2, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29405176/gender-and-country-of-birth-inequalities-in-occupational-diseases-compensation-rate-in-italy-inail-data-base-analysis-2010-2013
#9
Silvana Salerno
BACKGROUND: In Italy and in Europe occupational diseases (OD) claims are growing among women, and international studies show women's lower compensation rate. OBJECTIVES: Analysis of occupational diseases compensation rate among "Italian" women (country of birth: Italy) and "immigrant" women (country of birth: not Italy) focusing on biomechanical overload of the upper limb, the most common OD in Italy. METHODS: INAIL (Italian National Institute for Insurance against Accidents at Work) statistical data (2010-2013) on ascertained OD in Industry-Services (I-S) were analyzed by gender and country of birth with particular attention to biomechanical overload of the upper limb and to occupational diseases not included in the official OD list...
February 1, 2018: La Medicina del Lavoro
https://www.readbyqxmd.com/read/29397976/anatomy-of-the-mitral-subvalvular-apparatus
#10
Agata Krawczyk-Ożóg, Mateusz K Hołda, Filip Bolechała, Zbigniew Siudak, Danuta Sorysz, Dariusz Dudek, Wiesława Klimek-Piotrowska
OBJECTIVES: To characterize morphologic variations in the papillary muscles and tendinous cords of the left ventricle and ventricular zones of the mitral valve leaflets. METHODS: A total of 100 autopsied human hearts from healthy donors with classical mitral valve type were investigated. RESULTS: In 1 heart, only 1 group of papillary muscles was found, and in the remaining 99%, we could distinguish 2 groups of muscles: Superolateral (SLPM) and inferoseptal papillary muscle (ISPM) groups...
December 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29394519/eccentric-exercise-induces-spatial-changes-in-the-mechanomyographic-activity-of-the-upper-trapezius-muscle
#11
Pascal Madeleine, Ernst A Hansen, Rasmus E Andersen, Martyna Kumorek, Dariusz Mroczek, Afshin Samani, Adam Kawczynski
In this study, we hypothesized that the recordings of multi-channel mechanomyography (MMG) of the upper trapezius muscle would reveal spatially-dependent manifestations in presence of delayed onset muscle soreness occurring 24-h after eccentric exercise (ECC). Sixteen participants performed high intensity eccentric exercises (5 sets of 10 eccentric contractions at 100% of max elevation force) targeting the upper trapezius on their dominant side. Twelve accelerometers were attached to record MMG activity during submaximal exercise consisting of static and dynamic arm flexion and abduction...
February 2, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29379708/an-arthroscopic-knotless-technique-for-anatomical-restoration-of-the-rotator-cuff-and-superior-capsule-the-double-layer-cinch-bridge
#12
Philipp R Heuberer, Leo Pauzenberger, Daniel Smolen, Roman C Ostermann, Werner Anderl
Rotator cuff repairs are the most common procedures in shoulder surgery, but still show long-term retear rates of up to 70%. Nonanatomic reconstruction is one possible cause of repair failure. The rotator cuff histologically consists of 5 separate layers of which 2 are macroscopically identifiable: the superior or tendinous layer and the inferior or capsule-ligamentous layer. In case of rotator cuff tears, these layers are often retracted to different degrees. The intraoperative detectable prevalence of rotator cuff delamination reaches up to 85%...
January 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29369060/tendon-transfers-to-restore-ankle-dorsiflexion-after-anterior-compartment-myonecrosis-a-case-report
#13
Wesley Zhang Yang, Joseph S Park, Seth Robert Yarboro
CASE: A 47-year-old Caucasian woman spontaneously developed an isolated anterior compartment pressure of >100 mm Hg in the left leg. Despite fasciotomies, the musculature was nonviable and required debridement. Following Achilles tendon lengthening, a posterior tibial tendon (PTT) to anterior tibial tendon (ATT) transfer was supplemented with a flexor digitorum longus tendon transfer to the remaining PTT in order to prevent a flatfoot deformity while restoring active dorsiflexion. CONCLUSION: Preservation of the tendinous portion of the ATT during debridement allowed for transfer of the PTT to the ATT using a modified Pulvertaft transfer...
January 24, 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29368252/bilateral-muscular-slips-between-superior-and-inferior-rectus-muscles-case-report-with-discussion-on-classification-of-accessory-rectus-muscles-within-the-orbit
#14
Robert Haładaj, Grzegorz Wysiadecki, Michał Polguj, Mirosław Topol
Accessory rectus muscles have rarely been reported as muscular 'bands' or 'slips' originating from the common tendinous ring (annulus of Zinn) and inserting in atypical location. This group of muscles is innervated by the inferior branch of the oculomotor nerve, lies on lateral side of the optic nerve and inserts in rectus muscles. Since there are only few descriptions of such unusual findings in the medical literature, the anatomical data on accessory rectus muscles is limited. Furthermore, existing reports vary in terms of studied objects (cadavers or living subjects), medical history (absence or presence of ocular movement disorders or eye movement abnormalities) and details of anatomical description...
January 24, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29356388/analysis-of-the-moment-arms-and-kinematics-of-ostrich-struthio-camelus-double-patellar-sesamoids
#15
Sophie Regnault, Vivian R Allen, Kyle P Chadwick, John R Hutchinson
The patella ("kneecap") is a biomechanically important feature of the tendinous insertion of the knee extensor muscles, able to alter the moment arm lengths between its input and output tendons, and so modify the mechanical advantage of the knee extensor muscle. However, patellar gearing function is little-explored outside of humans, and the patella is often simplified or ignored in biomechanical models. Here, we investigate patellar gearing and kinematics in the ostrich-frequently used as an animal analogue to human bipedal locomotion and unusual in its possession of two patellae at the knee joint...
April 2017: Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology
https://www.readbyqxmd.com/read/29354480/an-all-arthroscopic-length-tensioned-suprapectoral-biceps-tenodesis-technique
#16
Allison J Rao, Eamon Bernardoni, Nikhil Verma, Scott Trenhaile
Biceps tenodesis remains a popular choice for treating anterior shoulder pain in the setting of primary biceps tendinitis or biceps pain due to concomitant glenohumeral joint pathology. A variety of surgical approaches and fixation construct options are available for biceps tenodesis. The advantages of an all-arthroscopic biceps tenodesis include anatomic maintenance of the length-tension relation with strength preservation and improved cosmetic results. This technique can be technically challenging but allows for a minimally invasive approach to anchor the biceps...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29345399/glycine-improves-the-remodeling-process-of-tenocytes-in-vitro
#17
Cristiano Pedrozo Vieira, Manuela Viola, Giane Daniela Carneiro, Maria Luisa D'Angelo, Cristina Pontes Vicente, Alberto Passi, Edson Rosa Pimentel
Tendinitis changes the biochemical and morphological properties of the tendon, promoting an increase of activity of metalloproteinases and disorganization of collagen bundles. Tenocytes, the primary cells in tendon, are scattered throughout the collagenic fibers, and are responsible of tendon remodeling and tissue repair in pathological condition. In vivo, glycine, component of the typical Gly-X-Y collagen tripeptide, showed beneficial effects in biochemical and biomechanical properties of Achilles tendon with tendinitis...
January 18, 2018: Cell Biology International
https://www.readbyqxmd.com/read/29335832/lateral-trochanteric-pain-following-total-hip-arthroplasty-radiographic-assessment-of-altered-biomechanics-as-a-potential-aetiology
#18
Ali Abdulkarim, Cathy Keegan, Raazi Bajwa, Eoin Sheehan
INTRODUCTION: Lateral trochanteric pain (LTP) complicates up to 17% of cases of total hip arthroplasty (THA). Studies have refuted underlying trochanteric bursitis. Restoration of the femoral offset and reproduction of the natural femoral centre of rotation are important in successful arthroplasty. LTP is believed to be associated with their alteration. AIM: The aim of our study was to evaluate the effect of femoral offset and centre of rotation on the incidence of LTP post-THA...
January 15, 2018: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29319572/vascularized-composite-allotransplantation-of-the-elbow-joint-a-cadaveric-study
#19
Mitchell A Pet, Angelo B Lipira, Yusha Liu, Dennis Kao, Jason H Ko
BACKGROUND: Surgical options for the unreconstructable elbow are limited to arthrodesis, total arthroplasty, or osteoarticular allograft reconstruction. Each of these options is limited by severe functional impairment and/or high complication rates. Vascularized allotransplantation of the elbow joint has the potential to mitigate these complications. In this study, we describe our technique for harvesting the elbow for vascularized joint transplantation and demonstrate the flap's vascularity using contrast angiography...
January 9, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29310934/tendinous-framework-of-anurans-reveals-an-all-purpose-morphology
#20
Jéssica Fratani, María Laura Ponssa, Virginia Abdala
Tendons are directly associated with movement, amplifying power and reducing muscular work. Taking into account habitat and locomotor challenges faced by anurans, we identify the more conspicuous superficial tendons of a neotropical anuran group and investigate their relation to the former factors. We show that tendons can be visualized as an anatomical framework connected through muscles and/or fascia, and describe the most superficial tendinous layer of the postcranium of Leptodactylus latinasus. To analyze the relation between tendon morphology and ecological characters, we test the relative length ratio of 10 tendon-muscle (t-m) elements in 45 leptodactylid species while taking phylogeny into account...
August 31, 2017: Zoology: Analysis of Complex Systems, ZACS
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