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https://www.readbyqxmd.com/read/29791955/muscle-tendon-enthesis-unit
#1
Anthony S Tadros, Brady K Huang, Mini N Pathria
Injuries to the muscle-tendon-enthesis unit are common and a significant source of pain and loss of function. This article focuses on the important anatomical and biomechanical considerations for each component of the muscle-tendon-enthesis unit. We review normal and pathologic conditions affecting this unit, illustrating the imaging appearance of common disorders on magnetic resonance imaging and ultrasound. Knowledge of the anatomy and biomechanics of these structures is crucial for the radiologist to make accurate diagnoses and provide clinically relevant assessments...
July 2018: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/29789266/microvascular-volume-in-symptomatic-achilles-tendons-is-associated-with-visa-a-score
#2
S F E Praet, J H Ong, C Purdam, M Welvaert, G Lovell, L Dixon, J E Gaida, J Anglim, S Manzanero, N Vlahovich, D Hughes, G Waddington
OBJECTIVES: The role of neovascularisation in tendinopathy is still poorly understood, potentially due to technical limitations of conventional power Doppler ultrasound. This study aimed to investigate the association between contrast-enhanced ultrasound (CEUS) microvascular volume (MV), Victorian Institute of Sports Assessment-Achilles (VISA-A) scores and intrinsic Achilles tendon tenderness, as well as two different Power Doppler modes. DESIGN: Cross-sectional study...
May 15, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29785267/a-silent-massive-ossification-of-achilles-tendon-as-a-suspected-rare-late-effect-of-surgery-for-club-foot
#3
Francesco Manfreda, Paolo Ceccarini, Marco Corzani, Rosario Petruccelli, Pierluigi Antinolfi, Giuseppe Rinonapoli, Auro Caraffa
We report the case of a 66-year-old male patient with massive ossification of the distal portion of the Achilles tendon, as a late consequence of a surgical release for club foot conducted in his childhood. The singularity of the case report derives from its clinical features: the bone mass was of abnormal dimensions, almost substituting the entire tendon; the condition had always been asymptomatic, without deficits in range of motion, in absence of either pain or biomechanical defects with age. In fact, the condition was diagnosed just recently as a consequence of a tear...
2018: SAGE open medical case reports
https://www.readbyqxmd.com/read/29784586/ultrasound-mediated-gene-delivery-enhances-tendon-allograft-integration-in-mini-pig-ligament-reconstruction
#4
Maxim Bez, Thomas J Kremen, Wafa Tawackoli, Pablo Avalos, Dmitriy Sheyn, Galina Shapiro, Joseph C Giaconi, Shiran Ben David, Jess G Snedeker, Zulma Gazit, Katherine W Ferrara, Dan Gazit, Gadi Pelled
Ligament injuries occur frequently, substantially hindering routine daily activities and sports participation in patients. Surgical reconstruction using autogenous or allogeneic tissues is the gold standard treatment for ligament injuries. Although surgeons routinely perform ligament reconstructions, the integrity of these reconstructions largely depends on adequate biological healing of the interface between the ligament graft and the bone. We hypothesized that localized ultrasound-mediated, microbubble-enhanced therapeutic gene delivery to endogenous stem cells would lead to significantly improved ligament graft integration...
April 26, 2018: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29776006/mineralization-can-be-an-incidental-ultrasonographic-finding-in-equine-tendons-and-ligaments
#5
Etienne J O O'Brien, Roger K W Smith
Tendon/ligament mineralization is recognized in horses but information regarding its clinical significance is limited. The aims of this observational study were to report the structures most commonly affected by ultrasonographically detectable mineralization and, for these, determine frequency of diagnosis and key clinical features. Cases presented at our hospital in April 1999-April 2013 and September 2014-November 2015 were included: a total of 27 horses (22 retrospective, five prospective). Mineralizations were most common in deep digital flexor tendons (10) and suspensory ligament branches (eight), representing 10% and 7% (estimated), respectively, of horses diagnosed with injuries to these structures during the study...
May 18, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29773337/ultrasound-of-the-distal-insertions-of-the-ankle-and-foot-tendons-with-anatomical-correlation-a-review
#6
REVIEW
Michel De Maeseneer, Hardi Madani, Leon Lenchik, Johan De Mey, Steven Provyn, Maryam Shahabpour
The distal insertions of the tendons crossing the ankle as well as the tendons originating in the foot are less well known by radiologists. We review the anatomy and ultrasound appearance of these insertions using our own cadaveric sectioning and dissection. The ultrasound images were correlated with anatomical slices. Occasionally magnetic resonance images were also used for better understanding. Understanding the normal appearance of these tendon insertions is important for diagnosing pathology in this region...
May 15, 2018: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/29771609/achilles-tendon-structure-differs-between-competitive-distance-runners-and-non-runners-despite-no-clinical-signs-or-symptoms-of-mid-substance-tendinopathy
#7
Todd J Hullfish, Kenton L Hagan, Ellen Casey, Josh R Baxter
Achilles tendinopathy affects many running athletes and often leads to chronic pain and functional deficits. While changes in tendon structure have been linked with tendinopathy, the effects of distance running on tendon structure is not well understood. Therefore, the purpose of this study was to characterize structural differences in the Achilles tendons in healthy young adults and competitive distance runners using quantitative ultrasound analyses. We hypothesized that competitive distance runners with no clinical signs or symptoms of tendinopathy would have quantitative signs of tendon damage, characterized by decreased collagen alignment and echogenicity, in addition to previous reports of thicker tendons...
May 17, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29769823/relationship-between-achilles-tendon-stiffness-and-ground-contact-time-during-drop-jumps
#8
Mohamed Abdelsattar, Andreas Konrad, Markus Tilp
The purpose of this study was to investigate the relationship between Achilles tendon stiffness and ground contact time (GCT) during drop jumps. The property of "springiness" and a short GCT during the movement is required in several types of sports. Therefore, a stiff tendon might be advantageous due to the quick force transmission from the muscle to the bone. Hence, a secondary aim was to relate Achilles tendon stiffness with squat jump (SJ) and counter movement jump (CMJ) performance, respectively...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29768379/usefulness-of-polydeoxyribonucleotide-as-an-alternative-to-corticosteroids-in-patients-with-lateral-epicondyitis-a-case-series
#9
Goo Joo Lee, Donghwi Park
RATIONALE: Local corticosteroid injections are commonly used as an easy, cost-effective treatment for patients with lateral epicondylitis (LE). Despite their strong anti-inflammatory effect, repeated injections of corticosteroids are not recommended in LE because they can aggravate tearing of the tendons. PATIENT CONCERNS: A 65-year-old (Case1) man and a 59-year-old (Case2) man had a 2-month history of right lateral elbow pain exacerbation. DIAGNOSES: Lateral epicondylitis with hypervascularity of the common extensor tendon...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29764889/autologous-stem-cells-in-achilles-tendinopathy-ascat-protocol-for-a-phase-iia-single-centre-proof-of-concept-study
#10
Andrew J Goldberg, Razi Zaidi, Deirdre Brooking, Louise Kim, Michelle Korda, Lorenzo Masci, Ruth Green, Paul O'Donnell, Roger Smith
INTRODUCTION: Achilles tendinopathy (AT) is a cause of pain and disability affecting both athletes and sedentary individuals. More than 150 000 people in the UK every year suffer from AT.While there is much preclinical work on the use of stem cells in tendon pathology, there is a scarcity of clinical data looking at the use of mesenchymal stem cells to treat tendon disease and there does not appear to be any studies of the use of autologous cultured mesenchymal stem cells (MSCs) for AT...
May 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29759589/ultrasound-guided-subacromial-subdeltoid-bursa-corticosteroid-injections-a-study-of-short-and-long-term-outcomes
#11
R Fawcett, A Grainger, P Robinson, M Jafari, E Rowbotham
AIM: To assess shoulder pain and disability in patients undergoing corticosteroid injection into the subacromial-subdeltoid (SA-SD) bursa under ultrasound guidance, evaluating both short and long-term outcomes. MATERIALS AND METHODS: In this prospective, longitudinal, analytical study 376 patients referred for SA-SD bursa injection during a 6 month period were asked to complete a questionnaire assessing shoulder pain and disability in the form of the Shoulder Pain and Disability Index (SPADI)...
May 11, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29754129/granuloma-formation-associated-with-patellar-tendon-necrosis-in-response-to-ethibond-confirmed-by-histopathological-examination
#12
Alejandro Blasco, Emilio Baixauli
The aim of this study is to describe a case of delayed granuloma formation associated with tendon necrosis in response to Ethibond confirmed by histopathological examination and to review and discuss the related literature. A 40-year-old woman underwent a patellar tendon repair with Krakow-like #5 Ethibond sutures. Four years after the repair, she noticed progressive soreness with knee extension and swelling. An ultrasound examination revealed a proximal partial patellar tendon rupture. Based on these findings, the patient was advised to undergo surgical intervention due to a diagnosis of re-rupture...
May 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29751979/principles-of-billing-for-diagnostic-ultrasound-in-the-office-and-operating-room
#13
REVIEW
Beatrice L Grasu, Bruce S Wolock, Matthew D Sedgley, Michael S Murphy
Ultrasound is becoming more prevalent as physicians gain comfort in its diagnostic and therapeutic uses. It allows for both static and dynamic evaluation of conditions and assists in therapeutic injections of joints and tendons. Proper technique is necessary for successful use of this modality. Appropriate coding for physician reimbursement is required. We discuss common wrist and hand pathology for which ultrasound may be useful as an adjunct to diagnosis and treatment and provide an overview of technique and reimbursement codes when using ultrasound in a variety of situations...
May 8, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29750152/automatic-myotendinous-junction-tracking-in-ultrasound-images-with-phase-based-segmentation
#14
Guang-Quan Zhou, Yi Zhang, Ruo-Li Wang, Ping Zhou, Yong-Ping Zheng, Olga Tarassova, Anton Arndt, Qiang Chen
Displacement of the myotendinous junction (MTJ) obtained by ultrasound imaging is crucial to quantify the interactive length changes of muscles and tendons for understanding the mechanics and pathological conditions of the muscle-tendon unit during motion. However, the lack of a reliable automatic measurement method restricts its application in human motion analysis. This paper presents an automated measurement of MTJ displacement using prior knowledge on tendinous tissues and MTJ, precluding the influence of nontendinous components on the estimation of MTJ displacement...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29741424/morphological-patterns-of-the-pretendinous-cord-in-dupuytren-s-disease-a-predictor-of-clinical-outcome
#15
P Vanek, J Strömberg, J Fridén, Y Aurell
The morphology of the pretendinous cord in Dupuytren's disease is poorly described in vivo and especially with respect to recurrence after treatment. This prospective study was designed to describe the morphology of Dupuytren's cords by ultrasound and to identify possible correlation between the ultrasonographic characteristics of these cords and the clinical outcomes two years after treatment. Thirty-nine patients with a contracture of at least 20° in the metacarpophalangeal (MCP) joint, who were scheduled for local treatment by either injectable collagenase clostridium histolyticum (CCH) or percutaneous needle fasciotomy (PNF), were examined by ultrasound...
May 9, 2018: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/29737558/risk-of-injury-to-the-sural-nerve-during-posterolateral-approach-to-the-distal-tibia-an-ultrasound-simulation-study
#16
Ewa Mizia, Przemysław A Pękala, Piotr Chomicki-Bindas, Wojciech Marchewka, Marios Loukas, Alexander G Zayachkowski, Krzysztof A Tomaszewski
Introduction When surgeons operate on the foot and ankle, the most common complication that may arise is injury of the cutaneous nerves. The sural nerve (SN) is potentially at risk of being injured when treating fractures involving the distal tibia using the posterolateral approach. The aim of this study was to evaluate how differences in length and position of the surgical treatment of fractures involving the distal tibia can affect the risk of SN injury. Materials and Methods The study involved 40 healthy volunteers (n=80 lower limbs)...
May 8, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29731324/comparison-of-two-ways-of-altering-carpal-tunnel-pressure-with-ultrasound-surface-wave-elastography
#17
Yu-Shiuan Cheng, Boran Zhou, Kazutoshi Kubo, Kai-Nan An, Steven L Moran, Peter C Amadio, Xiaoming Zhang, Chunfeng Zhao
Higher carpal tunnel pressure is related to the development of carpal tunnel syndrome. Currently, the measurement of carpal tunnel pressure is invasive and therefore, a noninvasive technique is needed. We previously demonstrated that speed of wave propagation through a tendon in the carpal tunnel measured by ultrasound elastography could be used as an indicator of carpal tunnel pressure in a cadaveric model, in which a balloon had to be inserted into the carpal tunnel to adjust the carpal tunnel pressure. However, the method for adjusting the carpal tunnel pressure in the cadaveric model is not applicable for the in vivo model...
June 6, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29728835/muscle-tendon-related-abnormalities-detected-by-ultrasonography-are-common-in-symptomatic-hip-dysplasia
#18
Julie Sandell Jacobsen, Lars Bolvig, Per Hölmich, Kristian Thorborg, Stig Storgaard Jakobsen, Kjeld Søballe, Inger Mechlenburg
INTRODUCTION: Hip dysplasia is characterized by reduced acetabular coverage of the femoral head leading to an increased mechanical load on the hip joint and the acting hip muscles. Potentially, the muscles and tendons functioning close to the hip joint may present with overuse-related ultrasonography findings. The primary aim was to report the prevalence of muscle-tendon-related abnormalities detected by ultrasonography in 100 patients with symptomatic hip dysplasia. The secondary aim was to investigate correlations between muscle-tendon-related abnormalities detected by ultrasonography and clinically identified pain related to muscles and tendons...
May 4, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29722592/age-related-changes-in-achilles-tendon-stiffness-and-impact-on-functional-activities-a-systematic-review-and-meta-analysis
#19
Tijs Delabastita, Stijn Bogaerts, Benedicte Vanwanseele
Achilles tendon stiffness determines calf muscle functioning during functional activities. However, contrasting evidence was found in studies comparing Achilles tendon stiffness in older and younger adults. Therefore, this systematic review compares Achilles tendon stiffness and elastic modulus in older and younger adults and reviews functional implications. Studies revealed by systematic bibliographic searches were included if healthy older adults were investigated and if Achilles tendon stiffness was measured using ultrasound and dynamometry...
May 3, 2018: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/29721438/correlations-between-the-equine-metacarpophalangeal-joint-angulation-and-toe-conformation-in-statics
#20
Jenny Hagen, Kaid Kojah, Michael Geiger
The angulation of the equine fetlock determines the load of associated tendons and probably their predisposition for injuries. However, it is questionable how the individual toe conformation and tendon properties interact with the dorsal metacarpophalangeal joint angle (DMPJ). Data are needed for a tangible evaluation of the equine limb conformation for more specific orthopaedic treatment. The aim was to evaluate the correlation between the DMPJ, toe conformation and cross-sectional area (CSA) of both flexor tendons; the superficial digital flexor tendon (SDFT) and deep digital flexor tendon (DDFT)...
2018: Open Veterinary Journal
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