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Achilles ultrasound

Mohamed S Zulfarina, Razinah Sharif, Syed-Badrul Syarifah-Noratiqah, Ahmad M Sharkawi, Zaris-Sm Aqilah-Sm, Sabarul-Afian Mokhtar, Shuid A Nazrun, Isa Naina-Mohamed
Maximizing bone mineral accrual to attain an optimal peak bone mass (PBM), particularly during adolescence, appears to be an effective protective strategy in the prevention of osteoporosis. This study aimed to evaluate the influence of physical activity (PA), fat mass (FM), lean mass (LM), body mass index (BMI), calcium, or combination of vitamin D supplement intake, smoking and alcohol drinking status on bone health assessed by calcaneus quantitative ultrasound (QUS) in a healthy adolescent population. The participants comprised of 920 male and female secondary school adolescents aged 15-17 years old...
2018: PloS One
Sean I Docking, Ebonie Rio, Jill Cook, David Carey, Lauren Fortington
BACKGROUND: Tendon pathology on imaging has been associated with an increased risk of developing symptoms. This evidence is based on classifying the tendon as normal or pathological. It is unclear whether the extent of tendon pathology is associated with the development or severity of symptoms. OBJECTIVES: To investigate whether the presence and extent of tendon pathology on ultrasound tissue characterisation (UTC), or a previous history of symptoms, were associated with the development of symptoms over a football season...
July 27, 2018: Journal of Science and Medicine in Sport
Jared R Fletcher, Brian R MacIntosh
During prolonged running, the magnitude of Achilles tendon (AT) length change may increase, resulting in increased tendon strain energy return with each step. AT elongation might also affect the magnitude of triceps surae (TS) muscle shortening and shortening velocity, requiring greater activation and increased muscle energy cost. Therefore, we aimed to quantify the tendon strain energy return and muscle energy cost necessary to allow energy storage to occur prior to and following prolonged running. 14 trained male (n = 10) and female (n = 4) distance runners (24±4 years, 1...
2018: PloS One
Samantha Rada, Jutta Gamper, Raquel González, Ghyslain Mombo-Ngoma, Smaïla Ouédraogo, Mwaka A Kakolwa, Rella Zoleko-Manego, Esperança Sevene, Abdunoor M Kabanywanyi, Manfred Accrombessi, Valérie Briand, Michel Cot, Anifa Vala, Peter G Kremsner, Salim Abdulla, Achille Massougbodgi, Arsénio Nhacolo, John J Aponte, Eusébio Macete, Clara Menéndez, Michael Ramharter
BACKGROUND: At times, ultrasound is not readily available in low resource countries in Africa for accurate determination of gestational age, so using alternative methods is pivotal during pregnancy. These assessments are used to aid the risk analysis for an infant and management strategies for premature delivery, if necessary. Currently, date of last menstrual period, fundal height measurements, and the New Ballard Score are commonly used in resource-limited settings. However, concordance of these measures is unknown for sub-Saharan Africa...
2018: PloS One
Sean I Docking, Michael A Girdwood, Jill Cook, Lauren V Fortington, Ebonie Rio
OBJECTIVE: To investigate whether the mean cross-sectional area (mCSA) of aligned fibrillar structure (AFS) was associated with the presence and severity of symptoms. DESIGN: Prospective cohort study. PARTICIPANTS: One hundred seventy-five elite male Australian football players completed monthly Oslo Sports Trauma Research Center overuse injury questionnaires for both the Achilles and patellar tendon over the season to ascertain the presence and severity of symptoms...
July 31, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
William H Clark, Jason R Franz
The human Achilles tendon (AT) consists of sub-tendons arising from the gastrocnemius and soleus muscles that exhibit non-uniform tissue displacements thought to facilitate some independent actuation. However, the mechanisms governing non-uniform displacement patterns within the AT, and their relevance to triceps surae muscle contractile dynamics, have remained elusive. We used a dual-probe ultrasound imaging approach to investigate triceps surae muscle dynamics (i.e., medial gastrocnemius-GAS, soleus-SOL) as a determinant of non-uniform tendon tissue displacements in the human AT...
2018: PeerJ
Wesley Matthews, Richard Ellis, James Furness, Wayne Hing
Ultrasound imaging (US) is an accurate and reliable method used to diagnose tendinopathy. This systematic review was aimed at identifying common criteria and parameters used to diagnose tendinopathy, the methodological quality of studies and the predictive value of US. Nineteen studies met the inclusion criteria, with the Achilles, quadriceps and patella tendons being investigated. Overall, there was significant heterogeneity between the criteria used to diagnose tendinopathy utilising US. The methodological quality of included studies was "good...
July 11, 2018: Ultrasound in Medicine & Biology
Amelie Werkhausen, Kirsten Albracht, Neil J Cronin, Gøran Paulsen, Jens Bojsen-Møller, Olivier R Seynnes
During rapid deceleration of the body, tendons buffer part of the elongation of the muscle-tendon unit (MTU), enabling safe energy dissipation via eccentric muscle contraction. Yet, the influence of changes in tendon stiffness within the physiological range upon these lengthening contractions is unknown. This study aimed to examine the effect of training-induced stiffening of the Achilles tendon on triceps surae muscle-tendon behavior during a landing task. Twenty-one male subjects were assigned to either a 10-week resistance-training program consisting of single-leg isometric plantarflexion ( n = 11) or to a non-training control group ( n = 10)...
2018: Frontiers in Physiology
Andrea Di Matteo, Emilio Filippucci, Edoardo Cipolletta, Iulia Satulu, Jana Hurnakova, Valentina Lato, Rossella De Angelis, Rudolf Horvath, Karel Pavelka, Fausto Salaffi, Walter Grassi
Objectives: The main objective of this study is to explore the prevalence and distribution of entheseal US changes in a cohort of SLE patients, taking as controls a group including both PsA patients and healthy subjects. The secondary objective is to investigate the correlation between the US findings and the clinical and serological data in SLE patients. Methods: Clinical and US assessment of quadriceps, patellar and Achilles tendons, and plantar fascia entheses were performed by independent rheumatologists on 65 patients with SLE, 50 patients with PsA and 50 healthy subjects...
July 3, 2018: Rheumatology
Michael Wagner, Joy Shen-Wagner, Kang X Zhang, Timothy Flynn, Kevin Bergman
Although the use of point-of-care ultrasound (POCUS) is well established in the emergency department (ED) and intensive care unit, the use of POCUS in the outpatient clinic setting is still emerging. General practitioners and specialists alike have increasing access to smaller and less expensive US devices that can assist in making timely diagnoses, guiding procedures, and monitoring patients. In this case-based review, we highlight some of the literature on simple-to-apply POCUS applications relevant to ambulatory medicine...
July 2018: Southern Medical Journal
Olivier C Dams, Inge van den Akker-Scheek, Ron L Diercks, Klaus W Wendt, Johannes Zwerver, Inge H F Reininga
PURPOSE: This study aimed to describe and analyse usual care of Achilles tendon ruptures (ATRs) by orthopaedic surgeons and trauma surgeons in the Netherlands. METHODS: A nationwide online survey of ATR management was sent to all consultant orthopaedic and trauma surgeons in the Netherlands, requesting participation of those involved in ATR management. Data on individual characteristics and the entire ATR management (from diagnosis to rehabilitation) were gathered...
July 3, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Rowan R Smart, Sienna Kohn, Cydney M Richardson, Jennifer M Jakobi
Achilles tendon mechanics influence plantar flexion force steadiness (FS) and balance. In the upper limb, elbow flexor FS is greater in supinated and neutral forearm orientations compared to pronated, with contributions of tendon mechanics remaining unknown in position-dependent FS. This study investigated whether distal biceps brachii (BB) tendon mechanics across supinated, neutral and pronated forearm orientations influence position-dependent FS of the elbow flexors. Eleven males (23 ± 3 years) performed submaximal isometric elbow flexion tasks at low (5, 10% maximal voluntary contraction (MVC)) and high (25, 50, 75% MVC) force levels in supinated, neutral and pronated forearm orientations...
July 25, 2018: Journal of Biomechanics
Harry J Roesch, Steve Milanese, Brooke Osborne, David J Spurrier, Kerry A Thoirs
OBJECTIVES: This study examines the acute morphological changes (up to three days) in the normal, asymptomatic Achilles tendon (AT) in response to a single bout of exercise in relation to tendon dimensions and vascularity. DESIGN: Within-subject pre-post design. METHODS: Participants conducted a 7.7km pack march on a sealed road in a time of 1h 16min (approximately 6kmh-1 ). The longitudinal image of the sagittal diameter, transverse image of the area and vascularity at 20mm proximal to the superior aspect of the calcaneus and longitudinal image of the sagittal diameter at the insertion was measured the day before the pack march, immediately afterwards and then three days later...
November 22, 2017: Journal of Science and Medicine in Sport
Kristen Rasske, Jason R Franz
The Achilles tendon (AT) moment arm transforms triceps surae muscle forces into a moment about the ankle which is critical for functional activities like walking. Moreover, the AT moment arm changes continuously during walking, as it depends on both ankle joint rotation and triceps surae muscle loading (presumably due to bulging of the muscle belly). Here, we posit that aging negatively effects the architecturally complex AT moment arm during walking, which thereby contributes to well-documented reductions in ankle moment generation during push-off...
June 18, 2018: Journal of Biomechanics
Michael Cassel, Lucie Risch, Konstantina Intziegianni, Juliane Mueller, Josefine Stoll, Pia Brecht, Frank Mayer
The study investigated the incidence of Achilles and patellar tendinopathy in adolescent elite athletes and non-athletic controls. Furthermore, predictive and associated factors for tendinopathy development were analyzed. The prospective study consisted of two measurement days (M1/M2) with an interval of 3.2±0.9 years. 157 athletes (12.1±0.7 years) and 25 controls (13.3±0.6 years) without Achilles/patellar tendinopathy were included at M1. Clinical and ultrasound examinations of both Achilles (AT) and patellar tendons (PT) were performed...
June 25, 2018: International Journal of Sports Medicine
Ebonie K Rio, Richard F Ellis, Jono M Henry, Victoria R Falconer, Zoltan S Kiss, Michael A Girdwood, Jill L Cook, Jamie E Gaida
Objective: Pain pressure thresholds (PPT) are used to study peripheral and central pain processing. In the tendon, pathological changes may exist without pain. This pilot study aimed to compare PPT between individuals with normal tendons and asymptomatic tendon pathology, and between individuals with and without a history of tendon pain. Methods: The patellar, Achilles, and supraspinatus tendons of 128 asymptomatic participants were examined with ultrasound. Global PPT average was determined using a digital algometer at the patellar tendon, quadriceps muscle, L3 spinous process, and deltoid muscle insertion...
June 22, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Agnetha de Sá, David A Hart, Karim Khan, Alexander Scott
INTRODUCTION: Statins are widely used to inhibit cholesterol production in the liver among people with hypercholesterolemia. A recent epidemiological study in the UK has shown that statin use (unlike elevated BMI) is not associated with an increased risk of Achilles tendon rupture. However, because of laboratory reports suggesting a negative influence of statins on tenocyte metabolism, we decided to directly compare the Achilles tendon structure (cross-sectional area and longitudinal collagen organization) in regular statin users compared to non-users...
2018: PloS One
Hatem Kalawy, Britt-Marie Stålnacke, Martin Fahlström, Lars Öhberg, Felix Linetsky, Håkan Alfredson
Background The presence of high blood flow in the structurally abnormal and painful regions of tendinosis, but not in the normal pain-free tendons, was recently confirmed by colour Doppler (CD) ultrasound (US). Biopsies from the regions with high blood flow demonstrated the presence of sympathetic and sensitive nerve fibres juxtapositioned to neovessels. Grey-scale US and CD are reliable methods used to evaluate structural homogeneity, thickness, and blood flow in the peripheral tendons. The aim of this study was to utilize CD to qualitatively evaluate for the presence of abnormal high blood flow in paravertebral tissues after whiplash injuries in patients with chronic neck pain...
October 1, 2013: Scandinavian Journal of Pain
Jay Smith, Håkan Alfredson, Lorenzo Masci, Jacob L Sellon, Charonn D Woods
BACKGROUND: The plantaris tendon (PT) has been implicated in the pathogenesis of symptoms in a subset of patients with Achilles region pain syndromes and has been traditionally managed via open surgical resection. Although the PT can be visualized on ultrasound, a minimally invasive technique for sonographically guided PT release has not been formally described. OBJECTIVE: To validate a technique to perform sonographically guided PT release in an unembalmed cadaveric model...
June 13, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
Naghmeh Gheidi, Thomas W Kernozek, John D Willson, Andrew Revak, Keith Diers
OBJECTIVE: Compare the estimated Achilles tendon (AT) loading using a musculoskeletal model during commonly performed weight bearing therapeutic exercises. DESIGN: Controlled laboratory study. SETTING: University biomechanics laboratory. PARTICIPANTS: Eighteen healthy males (Age:22.1 ± 1.8 years, height:177.7 ± 8.4 cm, weight = 74.29 ± 11.3 kg). MAIN OUTCOME MEASURE(S): AT loading was estimated during eleven exercises: tandem, Romberg, and unilateral standing, unilateral and bilateral heel raising, unilateral and bilateral jump landing, squat, lunge, walking, and running...
July 2018: Physical Therapy in Sport
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