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https://www.readbyqxmd.com/read/29332731/quantitative-tissue-parameters-of-achilles-tendon-and-plantar-fascia-in-healthy-subjects-using-a-handheld-myotonometer
#1
Sarah Orner, Wolfgang Kratzer, Julian Schmidberger, Beate Grüner
OBJECTIVE: The aim of the study was to examine the quantitative tissue properties of the Achilles tendon and plantar fascia using a handheld, non-invasive MyotonPRO device, in order to generate normal values and examine the biomechanical relationship of both structures. DESIGN: Prospective study of a large, healthy sample population. PARTICIPANTS: The study sample included 207 healthy subjects (87 males and 120 females) for the Achilles tendon and 176 healthy subjects (73 males and 103 females) for the plantar fascia...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29332181/management-of-rotator-cuff-injuries-in-the-elite-athlete
#2
REVIEW
Leigh J Weiss, Dean Wang, Michael Hendel, Philip Buzzerio, Scott A Rodeo
PURPOSE OF REVIEW: Rotator cuff injuries are a common cause of pain and dysfunction for the elite athlete and can result in time loss from participation. This review highlights the current management of these injuries. RECENT FINDINGS: Conservative management of rotator cuff injuries continues to be the "gold standard" in the elite athlete. This includes a comprehensive rehabilitation program, anti-inflammatories, and corticosteroid injections. Newer treatment techniques such as intramuscular dry needling and the use of biologics such as platelet-rich plasma and stem cells demonstrate early promising results; however, these modalities require further investigation to determine their effectiveness...
January 13, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29332055/operating-room-scheduling-and-surgeon-assignment-problem-under-surgery-durations-uncertainty
#3
Hongwei Liu, Tianyi Zhang, Shuai Luo, Dan Xu
BACKGROUND: Scientific management methods are urgently needed to balance the demand and supply of heath care services in Chinese hospitals. Operating theatre is the bottleneck and costliest department. Therefore, the surgery scheduling is crucial to hospital management. OBJECTIVE: To increase the utilization and reduce the cost of operating theatre, and to improve surgeons' satisfaction in the meantime, a practical surgery scheduling which could assign the operating room (OR) and surgeon for the surgery and sequence surgeries in each OR was provided for hospital managers...
December 29, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29330711/boosting-tendon-repair-interplay-of-cells-growth-factors-and-scaffold-free-and-gel-based-carriers
#4
REVIEW
Zexing Yan, Heyong Yin, Michael Nerlich, Christian G Pfeifer, Denitsa Docheva
BACKGROUND: Tendons are dense connective tissues and critical components for the integrity and function of the musculoskeletal system. Tendons connect bone to muscle and transmit forces on which locomotion entirely depends. Due to trauma, overuse and age-related degeneration, many people suffer from acute or chronic tendon injuries. Owing to their hypovascularity and hypocellularity, tendinopathies remain a substantial challenge for both clinicians and researchers. Surgical treatment includes suture or transplantation of autograft, allograft or xenograft, and these serve as the most common technique for rescuing tendon injuries...
January 5, 2018: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/29329890/pain-motion-and-function-comparison-of-two-exercise-protocols-for-the-rotator-cuff-and-scapular-stabilizers-in-patients-with-subacromial-syndrome
#5
Eva Vallés-Carrascosa, Tomás Gallego-Izquierdo, José Jesús Jiménez-Rejano, Gustavo Plaza-Manzano, Daniel Pecos-Martín, Fidel Hita-Contreras, Alexander Achalandabaso Ochoa
STUDY DESIGN: Randomized clinical trial. INTRODUCTION: Eccentric exercise (EE) was shown to be an effective treatment in tendinopathies. However, the evidence of its effectiveness in subacromial syndrome (SS) is scarce. Moreover, consensus has not been reached on whether best results for SS are obtained by means of EE with or without pain. PURPOSE OF THE STUDY: The purpose of this is to compare the effect on pain, active range of motion (AROM), and shoulder function of an exercise protocol performed with pain <40 mm Visual Analog Scale (VAS) and without pain, in patients with SS...
January 9, 2018: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29328887/macroscopic-rotator-cuff-tendinopathy-and-histopathology-do-not-predict-repair-outcomes-of-rotator-cuff-tears
#6
Paul M Sethi, Chirag D Sheth, Leo Pauzenberger, Mary Beth R McCarthy, Mark P Cote, Emma Soneson, Seth Miller, Augustus D Mazzocca
BACKGROUND: Numerous studies have identified factors that may affect the chances of rotator cuff healing after surgery. Intraoperative tendon quality may be used to predict healing and to determine type of repair and/or consideration of augmentation. There are no data that correlate how gross tendon morphology and degree of tendinopathy affect patient outcome or postoperative tendon healing. Purpose/Hypothesis: The purposes of this study were to (1) compare the gross appearance of the tendon edge during arthroscopic rotator cuff repair with its histological degree of tendinopathy and (2) determine if gross appearance correlated with postoperative repair integrity...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29328512/economy-of-scale-third-partner-strengthens-a-keystone-ant-plant-mutualism
#7
Kirsten M Prior, Todd M Palmer
While foundation species can stabilize ecosystems at landscape scales, their ability to persist is often underlain by keystone interactions occurring at smaller scales. Acacia drepanolobium is a foundation tree, comprising >95% of woody cover in East African black-cotton savanna ecosystems. Its dominance is underlain by a keystone mutualistic interaction with several symbiotic ant species in which it provides housing (swollen thorns) and carbohydrate-rich nectar from extra-floral nectaries (EFN). In return, it gains protection from catastrophic damage from mega-herbivores...
January 12, 2018: Ecology
https://www.readbyqxmd.com/read/29324877/impact-of-extra-articular-pathologies-on-groin-pain-an-arthroscopic-evaluation
#8
Mitsunori Kaya
PURPOSE: For patients who have anterior hip pain evaluated by Patrick's test and tenderness at Scarpa's triangle, we perform periarticular debridement based on the hypothesis that extra-articular pathologies are responsible for the hip pain. The purpose of this study was to categorize the endoscopic extra-articular findings and to evaluate the clinical significance of periarticular pathologies in anterior hip pain. METHODS: Arthroscopic findings of 77 patients who underwent periarthritic debridement were evaluated...
2018: PloS One
https://www.readbyqxmd.com/read/29324458/ultrasound-imaging-and-guided-injection-for-the-lateral-and-posterior-hip
#9
Ke-Vin Chang, Wei-Ting Wu, Henry L Lew, Levent Özçakar
Ultrasound has emerged as one of the most utilized tools to diagnose musculoskeletal disorders and to assist in interventions. Traditionally, sonographic examination of the hip joint has been challenging because most of the major structures are deeply situated, thus requiring the use of curvilinear transducer for better penetrance. The posterior lateral hip is a frequent area for musculoskeletal pain and nerve entrapments. Common disorders include greater trochanteric pain syndrome, gluteus medius tendinopathy, piriformis syndrome, pudendal neuralgia and proximal hamstring tendinopathy...
January 11, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29321885/climate-change-affecting-oil-palm-agronomy-and-oil-palm-cultivation-increasing-climate-change-require-amelioration
#10
REVIEW
R Russell M Paterson, Nelson Lima
Palm oil is used in various valued commodities and is a large global industry worth over US$ 50 billion annually. Oil palms (OP) are grown commercially in Indonesia and Malaysia and other countries within Latin America and Africa. The large-scale land-use change has high ecological, economic, and social impacts. Tropical countries in particular are affected negatively by climate change (CC) which also has a detrimental impact on OP agronomy, whereas the cultivation of OP increases CC. Amelioration of both is required...
January 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29321434/tricuspid-and-mitral-valve-regurgitation-with-bi-fascicular-block-following-a-horse-kick
#11
Tomoki Kokubun, Masayoshi Oikawa, Yasuhiro Ichijo, Yoshiyuki Matsumoto, Tetsuro Yokokawa, Kazuhiko Nakazato, Yoshiyuki Sato, Shinya Takase, Hiroharu Shinjo, Hitoshi Yokoyama, Hitoshi Suzuki, Shu-Ichi Saitoh, Yasuchika Takeishi
A 40-year-old man was transferred to our hospital following an isolated horse kick injury to the anterior chest wall. The case showed bi-fascicular block, severe tricuspid valve regurgitation due to ruptured chordae tendineae of the anterior leaflet, moderate mitral valve regurgitation due to prolapse of mitral anterior leaflet, and hypokinetic motion of the inferior septal wall. Both tricuspid and mitral insufficiency were completely repaired by a surgical operation. Fortunately, these injuries were not fatal in this case, but the comprehensive assessment of cardiac damage and careful observation are important for managing patients with cardiac injury...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29320945/the-influence-of-exercise-dosing-on-outcomes-in-patients-with-knee-disorders-a-systematic-review
#12
Jodi L Young, Daniel I Rhon, Joshua A Cleland, Suzanne J Snodgrass
Study Design Systematic review. Background Therapeutic exercise is commonly used to treat individuals with knee disorders, but dosing parameters for optimal outcomes are unclear. Large variations exist in exercise prescription, and research related to specific dosing variables for knee osteoarthritis, patellar tendinopathy and patellofemoral pain syndrome is sparse. Objectives To identify specific doses of exercise related to improved outcomes of pain and function in individuals with common knee disorders, categorized by effect size...
January 10, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29319908/integrating-bayesian-genomic-cline-analyses-and-association-mapping-of-morphological-and-ecological-traits-to-dissect-reproductive-isolation-and-introgression-in-a-louisiana-iris-hybrid-zone
#13
Cheng-Jung Sung, Katherine L Bell, Chris C Nice, Noland H Martin
Hybrid zones provide unique opportunities to examine reproductive isolation and introgression in nature. We utilized 45,384 Single Nucleotide Polymorphism (SNP) loci to perform association mapping of 14 floral, vegetative, and ecological traits that differ between Iris hexagona and Iris fulva, and to investigate, using a Bayesian Genomic Cline (BGC) framework, patterns of genomic introgression in a large and phenotypically diverse hybrid zone in southern Louisiana. Many loci of small effect-size were consistently found to be associated with phenotypic variation across all traits, and several individual loci were revealed to influence phenotypic variation across multiple traits...
January 10, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29319572/vascularized-composite-allotransplantation-of-the-elbow-joint-a-cadaveric-study
#14
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/29316809/extracorporeal-shock-waves-trigger-tenogenic-differentiation-of-human-adipose-derived-stem-cells
#15
Letizia Rinella, Francesca Marano, Laura Paletto, Marco Fraccalvieri, Laura Annaratone, Isabella Castellano, Nicoletta Fortunati, Alessandro Bargoni, Laura Berta, Roberto Frairia, Maria Graziella Catalano
PURPOSES: Incomplete tendon healing impairs the outcome of tendon ruptures and tendinopathies. Human Adipose-derived Stem Cells (hASCs) are promising for tissue engineering applications. Extracorporeal Shock Waves (ESW) are a leading choice for the treatment of several tendinopathies. In this study, we investigated the effects of ESW treatment and tenogenic medium on the differentiation of hASCs into tenoblast-like cells. MATERIALS AND METHODS: hASCs were treated with ESW generated by a piezoelectric device and tenogenic medium...
January 9, 2018: Connective Tissue Research
https://www.readbyqxmd.com/read/29315990/activation-of-akt-mtor-signaling-directs-tenogenesis-of-mesenchymal-stem-cells
#16
Xiao Xia Cong, Xi Sheng Rao, Jun Xin Lin, Xiao Ceng Liu, Guang An Zhang, Xiu Kui Gao, Min Yi He, Wei Liang Shen, Wei Fan, Dominique Pioletti, Li Ling Zheng, Huan Huan Liu, Zi Yin, Boon Chuan Low, Ronen Schweitzer, Hongwei Ouyang, Xiao Chen, Yi Ting Zhou
Tendon repair is a clinical challenge because of the limited understanding on tenogenesis. The synthesis of type I collagen (Collagen I) and other extracellular matrix are essential for tendon differentiation and homeostasis. Current studies on tenogenesis focused mostly on the tenogenic transcriptional factors while the signaling controlling tenogenesis on translational level remains largely unknown. Here, we showed that mechanistic target of rapamycin (mTOR) signaling was activated by protenogenic growth factor, transforming growth factors beta1, and insulin-like growth factor-I...
January 4, 2018: Stem Cells
https://www.readbyqxmd.com/read/29315811/apolipoprotein-a1-apo-a1-distribution-pattern-in-the-human-achilles-tendon
#17
James E Gaida, Håkan Alfredson, Alex Scott, Rouhollah Mousavizadeh, Sture Forsgren
Metabolic factors such as cholesterol appear to play an important role in the development of Achilles tendinopathy. There is, however, no morphologic proof explaining the link between high cholesterol and tendinopathy. As apolipoprotein A1 (Apo-A1) is essential for reverse cholesterol transport, it may be related to cholesterol overload in tendon. Nothing is known about Apo-A1 expression in tendon tissue. We examined the distribution of Apo-A1 protein in biopsies from normal and tendinopathy affected human Achilles tendons, and APOA1 mRNA production from cultured human hamstring tenocytes...
January 5, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29310934/tendinous-framework-of-anurans-reveals-an-all-purpose-morphology
#18
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
https://www.readbyqxmd.com/read/29305235/validation-of-isometric-tetanic-force-as-a-measure-of-muscle-recovery-after-nerve-injury-in-the-rabbit-biceps
#19
Kathleen M Kollitz, Guilherme Giusti, Patricia F Friedrich, Allen T Bishop, Alexander Y Shin
PURPOSE: The purpose of this study was to describe and validate a technique for measurement of isometric tetanic force (ITF) in the rabbit biceps muscle. MATERIALS AND METHODS: Eighteen New Zealand White rabbits were randomized to test either the right side or the left side first. Under propofol anesthesia, the brachial plexus and biceps brachii were exposed. The middle trunk (C6, C7) was secured in a bipolar electrode. Compound muscle action potential (CMAP) was measured...
January 3, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29304968/editorial-commentary-the-amsterdam-achilles-tendinopathy-endoscopic-treatment-should-we-start-booking-our-patients-for-surgery
#20
EDITORIAL
Sameh A Labib
Mid-portion Achilles tendinopathy remains an elusive clinical and pathologic condition, with only a limited treatment algorithm to guide us. Although the risk factors and natural history have been documented, the exact etiology and source of pain generation remains unclear in the literature. Several Level I studies have shown reasonable success with a myriad of nonoperative treatments over the long term. Surgery is often reserved as the last resort for those who have failed nonoperative treatment, with mixed techniques and results...
January 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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