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Tendon tendinopathy achilles

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https://www.readbyqxmd.com/read/27885357/achilles-tendinopathy-current-concepts-about-the-basic-science-and-clinical-treatments
#1
REVIEW
Hong-Yun Li, Ying-Hui Hua
Achilles tendinopathy is one of the most frequently ankle and foot overuse injuries, which is a clinical syndrome characterized by the combination of pain, swelling, and impaired performance. The two main categories of Achilles tendinopathy are classified according to anatomical location and broadly include insertional and noninsertional tendinopathy. The etiology of Achilles tendinopathy is multifactorial including both intrinsic and extrinsic factors. Failed healing response and degenerative changes were found in the tendon...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27881831/the-effect-of-suture-anchor-insertion-angle-on-calcaneus-pullout-strength-challenging-the-deadman-s-angle
#2
William M Weiss, Ramon P Saucedo, John D Robinson, Chung-Chieh Jason Lo, Randal P Morris, Vinod K Panchbhavi
: Background Refractory cases of Achilles tendinopathy amenable to surgery may include reattachment of the tendon using suture anchors. However, there is paucity of information describing the optimal insertion angle to maximize the tendon footprint and anchor stability in the calcaneus. The purpose of this investigation is to compare the fixation strength of suture anchors inserted at 90° and 45° (the Deadman's angle) relative to the primary compressive trabeculae of the calcaneus. Methods A total of 12 matched pairs of adult cadaveric calcanei were excised and potted to approximate their alignment in vivo...
November 23, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27881830/repair-of-chronic-achilles-ruptures-has-a-high-incidence-of-venous-thromboembolism
#3
Mark J Bullock, William T DeCarbo, Mark H Hofbauer, Joshua D Thun
: Background Despite the low incidence of deep vein thrombosis (DVT) in foot and ankle surgery, some authors report a high incidence of symptomatic DVT following Achilles tendon rupture. The purpose of this study was to identify DVT risk factors inherent to Achilles tendon repair to determine which patients may benefit from prophylaxis. Methods One hundred and thirteen patient charts were reviewed following elective and nonelective Achilles tendon repair. For elective repair of insertional or noninsertional Achilles tendinopathy, parameters examined included lateral versus prone positioning and the presence versus absence of a flexor hallucis longus transfer...
November 23, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27833972/evaluation-of-normal-and-pathological-achilles-tendon-by-real-time-shear-wave-elastography
#4
Pompiliu HoraŢiu Petrescu, Dragoş Andrei Izvernariu, Cătălina Iancu, Gabriel Ovidiu Dinu, Dan Crişan, Simona Alina Popescu, Roxana Lucia Denisa Şirli, Bogdan Mihai Nistor, Ion Călin RăuŢia, Dorela CodruŢa Lăzureanu, Sorin Dema, Ion Radu Prejbeanu, Ioan Sporea
Tendinopathy covers a range of several tendon conditions, mostly caused by overuse but at least in Achilles tendon pathology, favored by obesity, diabetes, inflammatory and autoimmune conditions. Subclinical tendon pathology is difficult to diagnose, as magnetic resonance imaging (MRI) examinations are sometimes inconclusive and not cost-effective. Elastography is an ultrasound examination method that uses mechanical impulses to produce shear waves in the tissue of interest, then measures the tissue displacement and calculates the shear wave speed or the elastic modulus of the examined tissue...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27813626/the-report-on-the-co-occurrence-of-two-different-rare-anatomic-variations-of-the-plantaris-muscle-tendon-on-both-sides-of-an-individual
#5
Łukasz Olewnik, Grzegorz Wysiadecki, Michał Polguj, Mirosław Topol
The plantaris muscle usually begins with a short and small muscle belly on the popliteal surface of the femur and on the knee joint capsule. It continues distally to form a long and thin tendon typically fixed to the calcaneal tuberosity. However, the course and the insertion of the plantaris muscle is variable, which may influence the development of Achilles tendinopathy. The plantaris tendon may also be used for reconstruction of tendons and ligaments, such as talofibular and calcaneofibular ligament. In literature review no data concerning the co-occurrence of anatomic variations of the plantaris muscle tendon in different individuals has been found...
November 4, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27796191/disrupted-tactile-acuity-in-people-with-achilles-tendinopathy-a-preliminary-case-control-investigation
#6
James Debenham, Prue Butler, Adrian Mallows, Benedict M Wand
Study Design Controlled laboratory study, preliminary case-control design. Background The mechanisms that contribute to Achilles tendinopathy remain poorly understood. The disparity between pain experience and peripheral pathology demonstrated in patients with Achilles tendinopathy suggests that changes in central nervous system function may be involved. Objectives To investigate whether lower-limb tactile acuity is impaired in people with nonacute Achilles tendinopathy. Methods Thirteen consecutive participants with nonacute midportion Achilles tendinopathy and 13 healthy controls were enrolled...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27760023/ultrasonography-and-low-field-magnetic-resonance-imaging-of-the-common-calcanean-tendon-in-a-rabbit-model-for-tendinopathy-research-a-descriptive-study-of-normal-anatomy
#7
A Skalec, P Przyborowska-Zhalniarovich, I Janus, K Kirstein, M Mieszkowska, Z Adamiak, A Chrószcz, M Janeczek
In spite of recent advances in treatment protocols, tendinopathies continue to challenge orthopaedists and surgeons. Due to the complexity of both tendon injuries and the healing processes, animal models are essential for addressing fundamental questions in tendinopathy research. Diagnostic imaging could contribute to the evaluation of animal models, thus providing information, which could be translated to human tendinopathies. The objective of our study was to evaluate in situ appearance of the rabbit common calcanean tendon with ultrasonography and magnetic resonance imaging...
September 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/27757281/a-delphi-study-of-risk-factors-for-achilles-tendinopathy-opinions-of-world-tendon-experts
#8
Seth O'Neill, Paul J Watson, Simon Barry
BACKGROUND AND PURPOSE: Achilles tendinopathy can be a debilitating chronic condition for both active and inactive individuals. The identification of risk facors is important both in preventing but also treating tendinopathy, many factors have been proposed but there is a lack of primary epidemiological data. The purpose of this study was to develop a statement of expert consensus on risk factors for Achilles tendinopathy in active and sedentary patient populations to inform a primary epidemiological study...
October 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27742920/strenuous-treadmill-running-induces-a-chondrocyte-phenotype-in-rat-achilles-tendons
#9
Shao-Yong Xu, Shu-Fen Li, Guo-Xin Ni
BACKGROUND Although tendinopathy is common, its underlying pathogenesis is poorly understood. This study aimed to investigate the possible pathogenesis of tendinopathy. MATERIAL AND METHODS In this study, a total of 24 rats were randomly and evenly divided into a control (CON) group and a strenuous treadmill running (STR) group. Animals in the STR group were subjected to a 12-week treadmill running protocol. Subsequently, all Achilles tendons were harvested to perform histological observation or biochemical analyses...
October 15, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27716217/ultrasound-guided-gastrocnemius-recession-a-new-ultra-minimally-invasive-surgical-technique
#10
Manuel Villanueva, Álvaro Iborra, Guillermo Rodríguez, Pablo Sanz-Ruiz
BACKGROUND: Isolated gastrocnemius contracture is thought to lead to numerous conditions. Although many techniques have been described for gastrocnemius recession, potential anesthetic, cosmetic, and wound-related complications can lead to patient dissatisfaction. Open and endoscopic recession techniques require epidural anesthesia, lower limb ischemia, and stitches and may lead to damage of the sural nerve, which is not under the complete control of the surgeon at all stages of the procedure...
October 3, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27714843/acute-tendon-changes-in-intense-crossfit-workout-an-observational-cohort-study
#11
F Y Fisker, S Kildegaard, M Thygesen, K Grosen, M Pfeiffer-Jensen
CrossFit is a fitness program that has become increasingly popular in the Western world, but as in other sports, the risk of injury is present. Only a few studies have addressed health benefits and injuries in CrossFit. It is known that chronically overloaded tendons will thicken and increase the risk of tendinopathy. However, it remains unknown whether acute overload caused by strenuous, high-intensity exercise will exert changes in tendons and if these changes can be detected and described by ultrasonography...
October 7, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27694583/the-plantaris-tendon-a-narrative-review-focusing-on-anatomical-features-and-clinical-importance
#12
C Spang, H Alfredson, S I Docking, L Masci, G Andersson
In recent years, the plantaris tendon has been implicated in the development of chronic painful mid-portion Achilles tendinopathy. In some cases, a thickened plantaris tendon is closely associated with the Achilles tendon, and surgical excision of the plantaris tendon has been reported to be curative in patients who have not derived benefit following conservative treatment and surgical interventions. The aim of this review is to outline the basic aspects of, and the recent research findings, related to the plantaris tendon, covering anatomical and clinical studies including those dealing with histology, imaging and treatment...
October 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27689161/is-sonographic-assessment-of-intratendinous-blood-flow-in-achilles-tendinopathy-patients-reliable-consistency-of-doppler-ultrasound-modes-and-intra-and-inter-observer-reliability
#13
L Risch, M Cassel, J Messerschmidt, K Intziegianni, K Fröhlich, S Kopinski, F Mayer
PURPOSE: The purpose of this study was to investigate the consistency between different Doppler ultrasound (DU) modes as well as the intra- and inter-observer reliability of investigators with different experience level in assessing intratendinous blood flow (IBF) in Achilles tendinopathy patients. MATERIAL AND METHODS: 18 participants (36 Achilles tendons, AT) with Achilles tendinopathy (24 AT) were examined with power Doppler ultrasound (PDU), colour Doppler ultrasound (CDU) and "Advanced Dynamic Flow" (ADF) (Toshiba Xario SSA-660 A; 14MHz transducer) by 2 investigators (experienced, EI; inexperienced, II) in a test-retest design (M1/M2)...
March 2016: Ultrasound International Open
https://www.readbyqxmd.com/read/27665095/platelet-rich-plasma-in-tendon-related-disorders-results-and-indications
#14
Giuseppe Filardo, Berardo Di Matteo, Elizaveta Kon, Giulia Merli, Maurilio Marcacci
PURPOSE: Platelet-rich plasma (PRP) is currently the most exploited strategy in the clinical practice to provide a regenerative stimulus for tendon healing. The aim of the present study was to systematically review the available evidence on the treatment of the main tendon disorders where PRP is currently applied. METHODS: A systematic review of the literature was performed on the use of PRP as a treatment for tendinopathies focusing on the following sites: Achilles tendon, patellar tendon, rotator cuff tendons, and lateral elbow tendons...
September 24, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27633025/can-ultrasound-imaging-predict-the-development-of-achilles-and-patellar-tendinopathy-a-systematic-review-and-meta-analysis
#15
Seán McAuliffe, Karen McCreesh, Fiona Culloty, Helen Purtill, Kieran O'Sullivan
BACKGROUND: Ultrasound (US) imaging is commonly used to visualise tendon structure. It is not clear whether the presence of structural abnormalities in asymptomatic tendons predicts the development of future tendon symptoms in the Achilles or patellar tendon. AIM: To perform a systematic review and meta-analysis investigating the ability of US imaging to predict future symptoms of patellar or Achilles tendinopathy. METHODS: Prospective studies that performed US imaging of Achilles OR patellar tendon structure among asymptomatic patients at baseline and a clinical measure of pain and/or function at follow-up were included...
December 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27632850/eccentric-loading-of-triceps-surae-modulates-stretch-shortening-cycle-behaviour-a-possible-therapeutic-mechanism
#16
James R Debenham, William I Gibson, Mervyn J Travers, Amity C Campbell, Garry T Allison
CONTEXT: Eccentric exercises are increasingly being used to treat lower limb musculoskeletal conditions such as Achilles tendinopathy. Despite widespread clinical application and documented efficacy, mechanisms underpinning clinical benefit remain unclear. Positive adaptations in motor performance are one potential mechanism. OBJECTIVE: To investigate how an eccentric loading intervention influences measures of stretch-shortening cycle (SSC) behaviour during a hopping task...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27631191/human-genetic-variation-sport-and-exercise-medicine-and-achilles-tendinopathy-role-for-angiogenesis-associated-genes
#17
Masouda Rahim, Louis Y El Khoury, Stuart M Raleigh, William J Ribbans, Michael Posthumus, Malcolm Collins, Alison V September
Sport and Exercise Medicine is one of the important subspecialties of 21st century healthcare contributing to improving the physical function, health, and vitality of populations while reducing the prevalence of lifestyle-related diseases. Moreover, sport and exercise are associated with injuries such as Achilles tendinopathy, which is a common tendon injury. The angiogenesis-associated signaling pathway plays a key role in extracellular matrix remodeling, with increased levels of angiogenic cytokines reported after cyclic stretching of tendon fibroblasts...
September 2016: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/27627685/low-level-laser-therapy-and-cryotherapy-as-mono-and-adjunctive-therapies-for-achilles-tendinopathy-in-rats
#18
Sturla Haslerud, Rodrigo Alvaro Brandão Lopes-Martins, Lúcio Frigo, Jan Magnus Bjordal, Rodrigo Labat Marcos, Ingvill Fjell Naterstad, Liv Heide Magnussen, Jon Joensen
BACKGROUND AND OBJECTIVE: Low-level laser therapy (LLLT) and cryotherapy are widely used treatments in the acute phase of tendon injury. The aim of this study was to investigate the interaction of these two treatments on tendon inflammation and mechanical properties. MATERIALS AND METHODS: Six groups of six Wistar rats were used in this study. The Achilles tendons of the healthy control group were not subjected to injury or treatment. The tendons of the injured nontreated group (ING) were injured, but not treated...
September 14, 2016: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/27624782/photobiomodulation-therapy-on-collagen-type-i-and-iii-vascular-endothelial-growth-factor-and-metalloproteinase-in-experimentally-induced-tendinopathy-in-aged-rats
#19
Anna Cristina de Farias Marques, Regiane Albertini, Andrey Jorge Serra, Evela Aparecida Pereira da Silva, Vanessa Lima Cavalcante de Oliveira, Luciana Miatto Silva, Ernesto Cesar Pinto Leal-Junior, Paulo de Tarso Camillo de Carvalho
This study investigates the effect of photobiomodulation therapy (PBMT) on collagen type I and III, matrix metalloproteinase (MMP), and vascular endothelial growth factor (VEGF) in experimentally induced tendinopathy in female aged rats. Tendinopathy was induced by the Achilles tendoncollagenase peritendinous. Forty-two Wistar rats (Norvegicus albinus) were used; groups consisted of 36 aged animals (18 months old; mean body weight, 517.7 ± 27.54 g) and 6 adult animals (12 weeks old; mean body weight, 266± 19...
December 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27604514/flexor-hallucis-longus-tendon-transfer-fixation-a-biomechanical-analysis-of-the-effects-of-a-terminal-whipstitch-and-bone-tunnel-length
#20
Jessica Lee, Chad Williams, Charles Lowrey, Greg Gould, Ronald Markert, Richard Laughlin
: Introduction Flexor hallucis longus (FHL) tendon transfer to the calcaneus is commonly used in the surgical treatment of chronic Achilles tendinopathy. This study assesses the integrity of FHL tendon biotenodesis screw fixation with respect to 2 variables: incorporation of a terminal whipstitch and tunnel depth. Materials and methods A total of 60 fresh-frozen cadaver FHL tendons and 28 calcanei were harvested for analysis in 4 sets of fixation constructs; 14 whipstitched tendons were compared against their nonwhipstitched paired tendon via pull-out strength load testing, and 16 tendon pairs were randomized for fixation in either a full-depth tunnel (bicortical) or a 25-mm partial tunnel (unicortical)...
September 7, 2016: Foot & Ankle Specialist
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