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https://www.readbyqxmd.com/read/29161769/influence-of-biceps-brachii-tendon-mechanical-properties-on-elbow-flexor-force-steadiness-in-young-and-old-males
#1
Rowan R Smart, Stéphane Baudry, Andrey Fedorov, Samantha L Kuzyk, Jennifer M Jakobi
Elbow flexor force steadiness (FS) depends on strength and decreases with age. Achilles tendon mechanics effect standing balance and isometric plantarflexion FS. This study investigated the influence of distal biceps brachii (BB) tendon mechanics and elbow flexor strength on age-related decline in FS. Nine young (23±2 years) and 9 old (77±5 years) males performed submaximal isometric elbow flexion tasks at low (2.5, 5, 10% maximal voluntary contraction (MVC)) and high (20, 40, 60, 80%MVC) forces in a neutral forearm position...
November 21, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29153963/shear-wave-elastography-swe-for-monitoring-of-treatment-of-tendinopathies-a-double-blinded-longitudinal-clinical-study
#2
Timm Dirrichs, Valentin Quack, Matthias Gatz, Markus Tingart, Björn Rath, Marcel Betsch, Christiane K Kuhl, Simone Schrading
RATIONALE AND OBJECTIVES: We aimed to investigate the diagnostic accuracy with which shear wave elastography (SWE) can be used to monitor response to treatment of tendinopathies, and to compare it to conventional ultrasound (US)-imaging methods (B-mode US (B-US) and power Doppler US (PD-US)). MATERIALS AND METHODS: A prospective Institutional Review Board-approved longitudinal study on 35 patients with 47 symptomatic tendons (17 Achilles-, 15 patellar-, and 15 humeral-epicondylar) who underwent standardized multimodal US and standardized clinical assessment before and after 6 months of treatment (tailored stretching exercise, sport break, and local Polidocanol) was carried out...
November 16, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29150470/platelet-rich-plasma-in-achilles-tendon-healing-2-path-2-trial-protocol-for-a-multicentre-participant-and-assessor-blinded-parallel-group-randomised-clinical-trial-comparing-platelet-rich-plasma-prp-injection-versus-placebo-injection-for-achilles-tendon-rupture
#3
Joseph Alsousou, David J Keene, Philippa A Hulley, Paul Harrison, Susan Wagland, Christopher Byrne, Michael Maia Schlüssel, Susan J Dutton, Sarah E Lamb, Keith Willett
BACKGROUND: Achilles tendon injuries give rise to substantial long-lasting morbidity and pose considerable challenges for clinicians and patients during the lengthy healing period. Current treatment strategies struggle to curb the burden of this injury on health systems and society due to lengthy rehabilitation, work absence and reinjury risk. Platelet-rich plasma (PRP) is an autologous preparation that has been shown to improve the mechanobiological properties of tendons in laboratory and animal studies...
November 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29147849/heterogeneity-of-passive-elastic-properties-within-the-quadriceps-femoris-muscle-tendon-unit
#4
Brooke K Coombes, Brandon Ziegenfuss, Michael David, Rohitha Badya, Wolbert van den Hoorn, François Hug, Kylie Tucker
PURPOSE: The purpose of this study was to compare regional elastic properties between anterior and posterior regions of the patellar tendon, and individual quadriceps muscles, over a range of knee flexion angles. METHODS: An isokinetic dynamometer passively positioned the non-dominant knee of 19 young, healthy participants, at 25°, 40°, 55°, 70° and 85° flexion. Shear wave velocity (SWV, an index of tissue elasticity) was measured using ultrasound shear wave elastography in a relaxed (passive) state, confirmed by electromyography...
November 17, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29142781/snapping-pes-anserinus-and-the-diagnostic-utility-of-dynamic-ultrasound
#5
Shane A Shapiro, Lorenzo O Hernandez, Daniel P Montero
Snapping pes anserinus syndrome is an often encountered cause of medial knee snapping. It results from impingement and translation of the gracilis tendon or semitendinosus tendon over the osseous structures of the knee during active flexion and extension. Ultrasonography is often the diagnostic imaging test of choice in cases of mechanical snapping. We report 2 cases of painful snapping pes anserinus and highlight the value of dynamic ultrasound in making an accurate diagnosis so as to direct care.
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/29139030/potential-risk-factors-for-reactive-arthritis-and-persistence-of-symptoms-at-2%C3%A2-years-a-case-control-study-with-longitudinal-follow-up
#6
Helga Raquel Garcia Ferrer, Alexander Azan, Isa Iraheta, Joan Von Feldt, Luis R Espinoza, Julia Manasson, Jose U Scher, Abraham Garcia Kutzbach, Alexis Ogdie
The objective of the study is to determine the risk factors for the development of reactive arthritis (ReA) and examine the factors associated with the persistence of symptoms. Patients with a new diagnosis of ReA and controls with a gastrointestinal (GI), urogenital, or sexually transmitted infection in the 3-6 months prior to study entry were prospectively enrolled in Guatemala City. ReA patients fulfilled the Assessment in Spondyloarthritis International Society criteria for peripheral spondyloarthropathy (SpA)...
November 14, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/29125382/intra-sheath-versus-extra-sheath-ultrasound-guided-corticosteroid-injection-for-trigger-finger-a-triple-blinded-randomized-clinical-trial
#7
Mohsen Mardani-Kivi, Mahmoud Karimi-Mobarakeh, Ali Babaei Jandaghi, Sohrab Keyhani, Khashayar Saheb-Ekhtiari, Keyvan Hashemi-Motlagh
OBJECTIVE: The aim of this study is to compare clinical results of ultrasound-guided corticosteroid injection, intra-sheath versus extra-sheath of the finger flexor tendon. METHODS: A total of 166 patients with trigger finger were evaluated in a triple blind randomized clinical trial study. All the patients were injected with 1ml of 40mg/ml methyl prednisolone acetate, under the guidance of ultrasound. Half the patients were injected extra sheath, while the other half were injected intra sheath at the level of first annular pulley...
November 10, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29122315/can-in-vivo-medial-gastrocnemius-muscle-tendon-unit-lengths-be-reliably-estimated-by-two-ultrasonography-methods-a-within-session-analysis
#8
Francesco Cenni, Simon-Henri Schless, Lynn Bar-On, Guy Molenaers, Anja Van Campenhout, Erwin Aertbeliën, Herman Bruyninckx, Britta Hanssen, Kaat Desloovere
A clinically feasible method to reliably estimate muscle-tendon unit (MTU) lengths could provide essential diagnostic and treatment planning information. A 3-D freehand ultrasound (3-DfUS) method was previously validated for extracting in vivo medial gastrocnemius (MG) lengths, although the processing time can be considered substantial for the clinical environment. This investigation analyzed a quicker and simpler method using the US transducer as a spatial pointer (US-PaP), where the within-session reliability of extracting the muscle-tendon unit (MTU) and tendon lengths are estimated...
November 6, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29117295/hand-rejuvenation-by-targeted-volume-restoration-of-the-dorsal-fat-compartments
#9
Jia Zhou, Yun Xie, Wen-Jin Wang, Tanja Herrler, Ru-Lin Hang, Pei-Juan Zhao, Si-Zheng Zhou, Qing-Feng Li
Background: Recent anatomic findings suggest aging-related changes of the complex fat distribution in the hand. Objectives: To rejuvenate the aging hand, we developed a targeted fat grafting technique based on the physiologic fat distribution of the hand. Methods: The dorsum of both hands was examined in 30 healthy volunteers of different age utilizing B-mode ultrasound to determine physiological changes of the aging hand. Additional anatomic dissection was performed in 10 hands of five fresh cadavers to establish the anatomic basis for the targeted restoration technique...
May 30, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29108853/the-biomechanics-of-subsynovial-connective-tissue-in-health-and-its-role-in-carpal-tunnel-syndrome
#10
REVIEW
V J M M Festen-Schrier, P C Amadio
Carpal Tunnel Syndrome (CTS) is the most common surgically treated problem in the hand. Aside from the neuropathy itself, the most common findings are fibrosis of the subsynovial connective tissue (SSCT) and increased intra carpal tunnel pressure. Normally, the SSCT is a multilayer tissue interspersed among the carpal tendons and nerve. As the tendons move, successive SSCT layers are recruited, forming a gliding unit and providing a limit to differential movement. Exceeding this limit, damages the SSCT as has been shown in both cadavers and animal models...
October 24, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29100187/mechanical-muscle-and-tendon-properties-of-the-plantar-flexors-are-altered-even-in-highly-functional-children-with-spastic-cerebral-palsy
#11
Annika Kruse, Christian Schranz, Martin Svehlik, Markus Tilp
BACKGROUND: Recent ultrasound studies found increased passive muscle stiffness and no difference in tendon stiffness in highly impaired children and young adults with cerebral palsy. However, it is not known if muscle and tendon mechanical properties are already altered in highly functional children with cerebral palsy. Therefore, the purpose of this study was to compare the mechanical and material properties of the plantar flexors in highly functional children with cerebral palsy and typically developing children...
October 28, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29089198/dynamic-ultrasound-imaging-for-the-assessment-of-extensor-tendon-adhesion-after-fifth-metacarpal-intraarticular-head-fracture-a-case-report
#12
Tugce Ozekli Misirlioglu, Hakan Ozben
STUDY DESIGN: Case report. INTRODUCTION: Development of extensor tendon adhesions is a common complication after intra-articular metacarpal head fracture. Whenever these adhesions cannot be mobilized by rehabilitation, tenolysis should be considered. However, the decision for tenolysis is often delayed. When the rehabilitation program comes to a plateau and clinical examination may not be sufficient to find out the cause, dynamic ultrasound (US) can show where the gliding mechanism is disrupted and help clinicians to give an accurate decision for determining the next steps...
October 28, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29079961/in-achilles-tendinopathy-the-neovascularization-detected-by-contrast-enhanced-ultrasound-ceus-is-abundant-but-not-related-to-symptoms
#13
Armanda De Marchi, Simona Pozza, Enzo Cenna, Franco Cavallo, Giorgia Gays, Luca Simbula, Paola De Petro, Alessandro Massè, Giuseppe Massazza
PURPOSE AND HYPOTHESIS: Mid-portion Achilles tendinopathy is characterized by a proliferation of small vessels, called neovascularization, which can be demonstrated by power Doppler sonography (PD). Neovascularization can be correlated with diagnosis and consequent therapies focused on vascular supply. Published data regarding the relationship between neovascularisation and symptoms, such as pain and disability, are contradictory. The hypothesis that contrast-enhanced ultrasound (CEUS) could detect with more sensibility than PD the new vessel ingrowth in human degenerated Achilles tendons and therefore the correlation of neovascularization with pain and disability, was evaluated...
October 27, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29079872/lipoma-arborescens-of-the-bicipitoradial-bursa
#14
Ali Kord Valeshabad, Dallas De La Vara, Ejaz Shamim, Alaa Alsadi, Karen L Xie
Lipoma arborescens (LA) is a rare, benign articular lesion that is most commonly found within the suprapatellar recess of the knee. An extremely rare case of LA involving unilateral bicipitoradial bursa is described in this study. A 58-year-old male presented with a superficial soft mass on the volar aspect of the left forearm. The magnetic resonance imaging (MRI) examination demonstrated a lobulated complex mass containing multiple frond-like fatty nodules, along the distal biceps tendon in the bicipitoradial bursa...
October 28, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29077737/a-medical-imaging-analysis-system-for-trigger-finger-using-an-adaptive-texture-based-active-shape-model-atasm-in-ultrasound-images
#15
Bo-I Chuang, Li-Chieh Kuo, Tai-Hua Yang, Fong-Chin Su, I-Ming Jou, Wei-Jr Lin, Yung-Nien Sun
Trigger finger has become a prevalent disease that greatly affects occupational activity and daily life. Ultrasound imaging is commonly used for the clinical diagnosis of trigger finger severity. Due to image property variations, traditional methods cannot effectively segment the finger joint's tendon structure. In this study, an adaptive texture-based active shape model method is used for segmenting the tendon and synovial sheath. Adapted weights are applied in the segmentation process to adjust the contribution of energy terms depending on image characteristics at different positions...
2017: PloS One
https://www.readbyqxmd.com/read/29069005/effect-of-polydeoxyribonucleotide-injection-on-pes-anserine-bursitis-a-case-report
#16
Jong-Uk Mun, Hyung R Cho, Sae M Bae, Soo K Park, Soo L Choi, Mi S Seo, Young S Lim, Soo H Woo Rn, Young U Kim
RATIONALE: Pes anserine (PA) bursitis is an inflammatory condition of the medial knee. The PA bursa becomes more painful when infected, damaged, or irritated. Although various treatment options have been attempted to treat PA bursitis, optimal treatments are still debated. This study aims to investigate the effect of polydeoxyribonucleotide (PDRN) injection on reducing pain and inflammation in a patient presenting with PA bursitis. PATIENT CONCERNS: A 50-year-old female patient was admitted to our pain clinic with symptoms of tenderness and pain over the medial knee...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29067675/estimating-medial-gastrocnemius-muscle-volume-in-children-with-spastic-cerebral-palsy-a-cross-sectional-investigation
#17
Simon-Henri Schless, Britta Hanssen, Francesco Cenni, Lynn Bar-On, Erwin Aertbeliën, Guy Molenaers, Kaat Desloovere
AIM: This cross-sectional investigation evaluates the reliability of estimating medial gastrocnemius anatomical cross-sectional area (aCSA) in typically developing and spastic cerebral palsy (SCP) cohorts. It verifies whether muscle volume estimations based on aCSA improve when aCSA is multiplied by muscle-tendon unit (MTU) or muscle length, and whether the resulting errors in volume estimations are smaller than changes after intervention. METHOD: Fifteen typically developing children (mean age 8y 2mo [SD 1y 5mo], six males, nine females) and 30 children with SCP (mean age 9y 2mo [SD 2y 5mo], 22 males, eight females, Gross Motor Function Classification System [GMFCS] level I=15, II=15) participated in the investigation...
October 24, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29067288/gene-therapy-using-plasmid-dna-encoding-vascular-endothelial-growth-factor-164-and-fibroblast-growth-factor-2-genes-for-the-treatment-of-horse-tendinitis-and-desmitis-case-reports
#18
Milomir Kovac, Yaroslav A Litvin, Ruslan O Aliev, Elena Yu Zakirova, Catrin S Rutland, Andrey P Kiyasov, Albert A Rizvanov
In this clinical study, for the first time we used the direct gene therapy to restore severe injuries of the suspensory ligament branch and superficial digital flexor tendon in horses (Equus caballus). We injected the plasmid DNA encoding two therapeutic species-specific growth factors: vascular endothelial growth factor 164 and fibroblast growth factor 2 at the site of injury in the suspensory ligament branch and tendon. Treatment effects were evaluated with the use of clinical observation and ultrasound imaging during a period of a few months...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29062826/ultrasound-evaluation-of-the-rotator-cuff-after-osteosynthesis-of-proximal-humeral-fractures-with-locking-intramedullary-nail
#19
Mauro Emilio Conforto Gracitelli, Eduardo Angeli Malavolta, Jorge Henrique Assunção, Bruno Akio Matsumura, Kodi Edson Kojima, Arnaldo Amado Ferreira Neto
OBJECTIVE: To evaluate supraspinatus tendon integrity with ultrasound (US) in patients submitted to proximal humeral fracture (PHF) fixation with a locking intramedullary nail. METHODS: Thirty-one patients with PHF treated with curvilinear locking intramedullary nail, aged between 50 and 85 years, were assessed by US at six months postoperatively and clinically at six and 12 months postoperatively. The primary aim was supraspinatus tendon integrity, evaluated by US at six months postoperatively...
September 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29054749/men-with-unilateral-achilles-tendinopathy-have-impaired-balance-on-the-symptomatic-side
#20
M Scholes, S Stadler, D Connell, C Barton, R A Clarke, A L Bryant, P Malliaras
OBJECTIVES: To investigate single leg standing balance in males with mid-portion Achilles tendinopathy (AT). DESIGN: Cross sectional case study. METHODS: Centre of pressure (COP) path length was measured using a Wii Balance Board (WBB) in 21 male participants (20-60 years) with unilateral mid-portion AT during single-limb standing on each limb with eyes open and closed. Ultrasound imaging of both Achilles tendons was also performed by one blinded assessor, and the anteroposterior (AP) thickness and presence of pathology was determined...
October 6, 2017: Journal of Science and Medicine in Sport
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