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Ultrasound tendon

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https://www.readbyqxmd.com/read/28089807/ultrasonography-detects-ulnar-nerve-dislocation-despite-normal-electrophysiology-and-magnetic-resonance-imaging
#1
Jared M Pisapia, Zarina S Ali, Eric D Hudgins, Viviane Khoury, Gregory G Heuer, Eric L Zager
BACKGROUND: Dislocation of the ulnar nerve (UN) occurs in a subset of patients with ulnar neuropathy. Electrodiagnostic and magnetic resonance imaging (MRI) studies are performed to support the clinical diagnosis. We report the case of a patient with ulnar neuropathy with normal electrodiagnostic and MRI studies but with ultrasound (US) showing UN dislocation, which prompted successful treatment by UN submuscular transposition. CASE DESCRIPTION: A healthy 15 year-old female softball player presented with right medial elbow pain and paresthesias of the fourth and fifth digits...
January 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28089102/comparison-of-corticosteroid-autologous-blood-or-sclerosant-injections-for-chronic-tennis-elbow
#2
R Branson, K Naidu, C du Toit, A H Rotstein, R Kiss, D McMillan, L Fooks, B K Coombes, B Vicenzino
OBJECTIVES: To compare three different ultrasound-guided injections for chronic tennis elbow. DESIGN: Assessor-blinded, randomized controlled comparative trial. METHODS: 44 patients with clinically diagnosed tennis elbow, confirmed by Doppler ultrasound, received under ultrasound guidance, a single corticosteroid injection (n=14), or two injections (separated by 4 weeks) of either autologous blood (n=14) or polidocanol (n=16). Clinical and ultrasound examination was performed at baseline, 4, 12 and 26 weeks...
October 29, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28079648/acute-response-of-the-infraspinatus-and-biceps-tendons-to-pitching-in-youth-baseball
#3
Adam Popchak, Nathan Hogaboom, Dharmesh Vyas, John Abt, Anthony Delitto, James J Irrgang, Michael Boninger
PURPOSE: Youth baseball frequently results in repetitive strain injuries. Quantitative ultrasound allows real-time imaging with the ability to identify acute markers of tendon change. The study objective was to determine acute quantitative ultrasound changes in the long head of the biceps and infraspinatus tendons of the throwing and non-throwing shoulders during a pitching performance. We hypothesized the tendons of the pitching arm would exhibit an increased width and decreased echogenicity after pitching and that tendons of the non-pitching arm would not demonstrate such changes...
January 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28077355/no-evidence-for-the-use-of-stem-cell-therapy-for-tendon-disorders-a-systematic-review
#4
Haiko I M F L Pas, Maarten H Moen, Hidde J Haisma, Marinus Winters
INTRODUCTION: Stem cells have emerged as a new treatment option for tendon disorders. We systematically reviewed the current evidence for stem cell therapy in tendon disorders. METHODS: Randomised and non-randomised controlled trials, cohort studies and case series with a minimum of 5 cases were searched in MEDLINE, CENTRAL, EMBASE, CINAHL, PEDro and SPORTDiscus. In addition, we searched grey literature databases and trial registers. Only human studies were included and no time or language restrictions were applied to our search...
January 11, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28075051/bilateral-multifocal-upper-extremity-atypical-granular-cell-tumors-presenting-as-long-standing-right-wrist-and-left-hand-masses-in-a-15-year-old-african-american-female
#5
Michael DeWall, Corey O Montgomery, Jerad M Gardner
Granular cell tumor (GrCT) is a benign nerve sheath tumor. Atypical and malignant variants of GrCT are rare but have been well described. We report a case of multifocal symmetric atypical GrCT in the bilateral hand/wrists of a 15 year old African American female. The initial clinical impression for both masses were favored to be ganglion cysts. Ultrasound findings of both masses revealed hypoechoic soft tissue lesions with some internal echogenicity favoring complex cysts. On excision, both masses were histologically circumscribed, lobulated, and attached to tendon...
January 11, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28067854/quantitative-assessment-of-first-annular-pulley-and-adjacent-tissues-using-high-frequency-ultrasound
#6
Yi-Hsun Lin, Tai-Hua Yang, Shyh-Hau Wang, Fong-Chin Su
Due to a lack of appropriate image resolution, most ultrasound scanners are unable to sensitively discern the pulley tissues. To extensively investigate the properties of the A1 pulley system and the surrounding tissues for assessing trigger finger, a 30 MHz ultrasound system was implemented to perform in vitro experiments using the hypodermis, A1 pulley, and superficial digital flexor tendon (SDFT) dissected from cadavers. Ultrasound signals were acquired from both the transverse and sagittal planes of each tissue sample...
January 7, 2017: Sensors
https://www.readbyqxmd.com/read/28058481/extensor-tendinopathy-of-the-elbow-assessed-with-sonoelastography-histologic-correlation
#7
Andrea S Klauser, Mathias Pamminger, Ethan J Halpern, Mohamed M H Abd Ellah, Bernhard Moriggl, Mihra S Taljanovic, Christian Deml, Judit Sztankay, Guenther Klima, Werner R Jaschke
PURPOSE: To compare agreement between conventional B-mode ultrasound (US) and compression sonoelastography (SEL) of the common extensor tendons of the elbow with histological evaluation. MATERIALS AND METHODS: Twenty-six common extensor tendons were evaluated in 17 cadavers (11 females, median age 85 years and 6 males, median age 80 years). B-mode US was graded into: Grade 1, homogeneous fibrillar pattern; grade 2, hypoechoic areas and/or calcifications <30%; and grade 3 > 30%...
January 5, 2017: European Radiology
https://www.readbyqxmd.com/read/28053262/functional-outcomes-of-conservatively-managed-acute-ruptures-of-the-achilles-tendon
#8
J E Lawrence, P Nasr, D M Fountain, L Berman, A H N Robinson
AIMS: This prospective cohort study aims to determine if the size of the tendon gap following acute rupture of the Achilles tendon shows an association with the functional outcome following non-operative treatment. PATIENTS AND METHODS: All patients presenting within two weeks of an acute unilateral rupture of the Achilles tendon between July 2012 and July 2015 were considered for the study. In total, 38 patients (nine female, 29 male, mean age 52 years; 29 to 78) completed the study...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28044199/muscle-fascicle-shortening-behaviour-of-vastus-lateralis-during-a-maximal-force-velocity-test
#9
Hugo Hauraix, Sylvain Dorel, Giuseppe Rabita, Gaël Guilhem, Antoine Nordez
PURPOSE: Muscle fascicles-tendon interactions are the main determinant in production of high joint velocity. Currently, no study has investigated the muscle fascicles behaviour of knee extensor muscles until the highest reachable velocity (e.g., unloaded knee extension). We aimed to track the changes in vastus lateralis fascicles length during knee extensions to quantify muscle fascicles and tendinous tissues contributions to muscle-tendon unit shortening and to determine maximal muscle fascicles shortening velocity...
January 3, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28028840/pain-duration-is-associated-with-increased-muscle-sympathetic-nerve-activity-in-patients-with-achilles-tendinopathy
#10
J L Jewson, E A Lambert, S Docking, M Storr, G W Lambert, J E Gaida
Tendinopathy is a common condition, which has been linked to surrogate measures of sympathetic nervous system (SNS) activity and insulin resistance. This study aimed to compare in vivo measures of the SNS and insulin resistance between individuals with and without Achilles tendinopathy. This case-control study compared Achilles tendinopathy sufferers to healthy controls. SNS activity was quantified using muscle sympathetic nerve activity (MSNA), while metabolic status was assessed via a modified glucose tolerance test and fasting lipid panel...
December 28, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28024659/diagnosis-of-complex-pulley-ruptures-using-ultrasound-in%C3%A2-cadaver-models
#11
Isabelle Schöffl, Arnica Hugel, Volker Schöffl, Wolfgang Rascher, Jörg Jüngert
Pulley ruptures are common in climbing athletes. The purposes of this study were to determine the specific positioning of each pulley with regards to the joint, and to evaluate the ultrasound diagnostics of various pulley rupture combinations. For this, 34 cadaver fingers were analyzed via ultrasound, the results of which were compared to anatomic measurements. Different pulley ruptures were then simulated and evaluated using ultrasound in standardized dynamic forced flexion. Visualization of the A2 and A4 pulleys was achieved 100% of the time, while the A3 pulley was visible in 74% of cases...
December 23, 2016: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28004174/altered-patterns-of-displacement-within-the-achilles-tendon-following-surgical-repair
#12
Åsa Fröberg, Ann-Sophie Cissé, Matilda Larsson, Mattias Mårtensson, Michael Peolsson, Tomas Movin, Anton Arndt
PURPOSE: Ultrasound speckle tracking was used to compare tendon deformation patterns between uninjured and surgically repaired Achilles tendons at 14-27-month follow-up. The hypothesis was that the non-homogenous displacement pattern previously described in uninjured tendons, where displacement within deep layers of the tendons exceeds that of superficial layers, is altered following tendon rupture and subsequent surgical repair. METHODS: In the first part of this study, an in-house-developed block-matching speckle tracking algorithm was evaluated for assessment of displacement on porcine flexor digitorum tendons...
December 21, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28002864/ultrasound-guided-platelet-rich-plasma-treatment-application-and-technique
#13
Kenneth S Lee
Platelet-rich plasma injection is a minimally invasive treatment method for common overuse tendon injuries. This article discusses the biology of platelet-rich plasma (PRP), the healing cascade that PRP promotes, and how PRP composition may differ depending on centrifuge method. It also highlights the common uses of PRP tendon injection and offers an update on the most current clinical evidence-based literature.
November 2016: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/28002863/ultrasound-guided-percutaneous-tenotomy
#14
Jon A Jacobson, Sung Moon Kim, Monica Kalume Brigido
Of the many treatment options for tendinopathy, percutaneous tenotomy has been used throughout the body with success. With this procedure, a needle is repeatedly passed into the abnormal tendon with the goal of converting a chronic degenerative process to an acute inflammatory condition that will progress to tendon healing. Ultrasound guidance for this procedure is essential to ensure that the abnormal region of the tendon is accurately targeted. The treatment has few contraindications, and negligible complications have been described...
November 2016: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/27999728/from-acute-achilles-tendon-rupture-to-return-to-play-a-case-report-evaluating-recovery-of-tendon-structure-mechanical-properties-clinical-and-functional-outcomes
#15
Jennifer A Zellers, Daniel H Cortes, Karin Grävare Silbernage L
INTRODUCTION: Achilles tendon rupture results in significant functional deficits regardless of treatment strategy (surgical versus non-surgical intervention). Recovery post-rupture is highly variable, making comprehensive patient assessment critical. Assessment tools may change along the course of recovery as the patient progresses - for instance, moving from a seated heel-rise to standing heel-rise to jump testing. However, tools that serve as biomarkers for early recovery may be particularly useful in informing clinical decision-making...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27998042/ultrasound-features-of-the-posterior-tibialis-tendon-and-peroneus-brevis-tendon-entheses-a-comparison-study-between-healthy-adults-and-inflammatory-arthritis
#16
Ian M Ward, Eugene Kissin, Gurjit Kaeley, Joshua N Scott, Michelle Newkirk, Bernard A Hildebrand, Josh Lospinoso, Minna J Kohler, Jay B Higgs
OBJECTIVES: Limited literature exists on the sonographic appearance of the posterior tibialis (PTT) and the peroneus brevis (PBT) tendon entheses. We determined the anatomic features and best imaging techniques of normal PTT and PBT using musculoskeletal ultrasound and compared these findings to subjects with inflammatory arthritis. METHODS: Adult subjects were enrolled as: healthy controls (HC), rheumatoid arthritis (RA), and spondyloarthropathy (SpA). Bilateral PTT and PBT entheses were imaged longitudinally, comparing two angles of insonation: perpendicular to the skin surface and 45˚ cephalad...
December 20, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27992779/achilles-tendon-morphology-plantar-flexors-torque-and-passive-ankle-stiffness-in-spastic-hemiparetic-stroke-survivors
#17
Bruno Freire, Caroline Pieta Dias, Natália Batista Albuquerque Goulart, Camila Dias de Castro, Jefferson Becker, Irênio Gomes, Marco Aurélio Vaz
BACKGROUND: The present study compared the Achilles tendon morphological characteristics, plantar flexor toque and passive ankle stiffness between hemiparetic spastic stroke survivors and healthy subjects. METHODS: The Achilles tendon length was measured at the affected and contralateral limbs of twelve hemiparetic stroke survivors with ankle spasticity and twelve healthy subjects. The ankle was held at three different angles (20° plantar flexion, 0° and maximum dorsiflexion) while an ultrasound system was used to capture images from the Achilles tendon...
December 12, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27980864/pulsed-magnetic-field-versus-ultrasound-in-the-treatment-of-postnatal-carpal-tunnel-syndrome-a-randomized-controlled-trial-in-the-women-of-an-egyptian-population
#18
Dalia M Kamel, Nashwa S Hamed, Neveen A Abdel Raoof, Sayed A Tantawy
The aim of this study was to compare the effects of pulsed electromagnetic field versus pulsed ultrasound in treating patients with postnatal carpal tunnel syndrome. The study was a randomized, double-blinded trial. Forty postnatal female patients with idiopathic carpal tunnel syndrome were divided randomly into two equal groups. One group received pulsed electromagnetic field, with nerve and tendon gliding exercises for the wrist, three times per week for four weeks. The other group received pulsed ultrasound and the same wrist exercises...
January 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/27974984/technical-innovation-case-report-ultrasound-guided-prolotherapy-injection-for-insertional-achilles-calcific-tendinosis
#19
Benjamin K Buchanan, Jesse P DeLuca, Kyle P Lammlein
We describe the use of ultrasound guidance for hyperosmolar dextrose (prolotherapy) injection of the distal calcaneal tendon specifically just anterior to identified enthesophytes in patients with insertional Achilles calcific tendinosis refractory to conservative treatment. This specific technique has not to our knowledge been described or used in literature previously.
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27956233/graft-augmentation-versus-bridging-for-large-to-massive-rotator-cuff-tears-a-systematic-review
#20
REVIEW
Yohei Ono, Diego Alejandro Dávalos Herrera, Jarret M Woodmass, Richard S Boorman, Gail M Thornton, Ian K Y Lo
PURPOSE: To systematically review the literature on the healing rates and clinical outcomes of the 2 different graft indications (i.e., augmentation vs bridging) during rotator cuff repair. METHODS: A systematic literature review was performed for clinical studies of rotator cuff repair using grafts for large to massive tears. The primary outcome was tendon healing on either magnetic resonance imaging or ultrasound. The secondary outcomes included visual analog scale for pain, American Shoulder and Elbow Surgeons score, and University of California at Los Angeles score, and forward elevation...
December 9, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
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