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https://www.readbyqxmd.com/read/27914201/shear-wave-ultrasound-elastographic-evaluation-of-the-rotator-cuff-tendon
#1
Stephanie W Hou, Alexander N Merkle, James S Babb, Robert McCabe, Soterios Gyftopoulos, Ronald S Adler
OBJECTIVES: (1) Assess the association between the B-mode morphologic appearance and elasticity in the rotator cuff tendon using shear wave elastography (SWE). (2) Assess the association between SWE and symptoms. METHODS: Institutional Review Board approval and informed consent were obtained. A retrospective review identified 21 studies in 19 eligible patients for whom SWE was performed during routine sonographic evaluations for shoulder pain. Evaluations were compared with 55 studies from 16 asymptomatic volunteers and 6 patients with asymptomatic contralateral shoulders...
December 3, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27900711/lacertus-fibrosus-augmentation-for-distal-biceps-brachii-rupture-repair-surgical-technique
#2
M Fontana, A Trimarchi, A Colozza
BACKGROUND: Repair of distal biceps tendon ruptures has become widely accepted. Unfortunately, care of retracted-degenerated injuries remains a challenge for orthopedic surgeons. Complication rates appear to increase when surgery is performed in chronic cases compared to those operated acutely. Multiple techniques for chronic reconstruction with the use of grafts have been described. Recently Morrey, from the Mayo Clinic, proposed a direct anatomic repair of retracted distal biceps tendon ruptures in extreme flexion (60°-90°) to avoid grafting...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27900300/treatment-of-proximal-hamstring-tendinopathy-related-sciatic-nerve-entrapment-presentation-of-an-ultrasound-guided-intratissue-percutaneous-electrolysis-application
#3
Gabriele Mattiussi, Carlos Moreno
BACKGROUND: Proximal Hamstring Tendinopathy-related Sciatic Nerve Entrapment (PHTrSNE) is a neuropathy caused by fibrosis interposed between the semimembranosus tendon and the sciatic nerve, at the level of the ischial tuberosity. METHODS: Ultrasound-guided Intratissue Percutaneous Electrolysis (US-guided EPI) involves galvanic current transfer within the treatment target tissue (fibrosis) via a needle 0.30 to 0.33 mm in diameter. The galvanic current in a saline solution instantly develops the chemical process of electrolysis, which in turn induces electrochemical ablation of fibrosis...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27896400/quantitative-assessment-of-the-supraspinatus-tendon-on-mri-using-t2-t2-mapping-and-shear-wave-ultrasound-elastography-a-pilot-study
#4
Konstantin Krepkin, Mary Bruno, José G Raya, Ronald S Adler, Soterios Gyftopoulos
OBJECTIVE: To determine whether there is an association between T2/T2* mapping and supraspinatus tendon mechanical properties as assessed by shear-wave ultrasound elastography (SWE). MATERIALS AND METHODS: This HIPAA-compliant prospective pilot study received approval from our hospital's institutional review board. Eight patients (3 males/5 females; age range 44-72 years) and nine shoulders underwent conventional shoulder MRI, T2/T2* mapping on a 3-T scanner, and SWE...
November 28, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27895962/texture-analysis-of-supraspinatus-ultrasound-image-for-computer-aided-diagnostic-system
#5
Byung Eun Park, Won Seuk Jang, Sun Kook Yoo
OBJECTIVES: In this paper, we proposed an algorithm for recognizing a rotator cuff supraspinatus tendon tear using a texture analysis based on a histogram, gray level co-occurrence matrix (GLCM), and gray level run length matrix (GLRLM). METHODS: First, we applied a total of 57 features (5 first order descriptors, 40 GLCM features, and 12 GLRLM features) to each rotator cuff region of interest. Our results show that first order statistics (mean, skewness, entropy, energy, smoothness), GLCM (correlation, contrast, energy, entropy, difference entropy, homogeneity, maximum probability, sum average, sum entropy), and GLRLM features are helpful to distinguish a normal supraspinatus tendon and an abnormal supraspinatus tendon...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27886830/flexor-tendon-pulley-injuries-in-rock-climbers
#6
REVIEW
Elizabeth A King, John R Lien
Closed pulley ruptures are rare in the general population but occur more frequently in rock climbers due to biomechanical demands on the hand. Injuries present with pain and swelling over the affected pulley, and patients may feel or hear a pop at the time of injury. Sequential pulley ruptures are required for clinical bowstringing of the flexor tendons. Ultrasound confirms diagnosis of pulley rupture and evaluates degree of displacement of the flexor tendons. Isolated pulley ruptures frequently are treated conservatively with early functional rehabilitation...
February 2017: Hand Clinics
https://www.readbyqxmd.com/read/27882112/diagnostic-value-of-high-frequency-ultrasound-and-magnetic-resonance-imaging-in-early-rheumatoid-arthritis
#7
Ming-Yu Wang, Xian-Bin Wang, Xue-Hui Sun, Feng-Li Liu, Sheng-Chuan Huang
Early diagnosis and management improve the outcome of patients with rheumatoid arthritis (RA). The present study explored the application of high-frequency ultrasound (US) and magnetic resonance imaging (MRI) in the detection of early RA. Thirty-nine patients (20 males and 19 females) diagnosed with early RA were enrolled in the study. A total of 1,248 positions, including 858 hand joints and 390 tendons, were examined by high-frequency US and MRI to evaluate the presence of bone erosion, bone marrow edema (BME), synovial proliferation, joint effusion, tendinitis and tendon sheath edema...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27868077/platelet-rich-plasma-injections-with-needle-tenotomy-for-gluteus-medius-tendinopathy-a-registry-study-with-prospective-follow-up
#8
James J Lee, Julian R Harrison, Kwadwo Boachie-Adjei, Elizabeth Vargas, Peter J Moley
BACKGROUND: Gluteal tendinopathy is a prevalent condition that can be associated with significant pain and disability. To date, no studies have prospectively assessed the efficacy of intratendinous platelet-rich plasma (PRP) injections as a minimally invasive treatment for gluteus medius tendinopathy. PURPOSE: To prospectively assess the efficacy of intratendinous PRP injections as treatment for chronic recalcitrant gluteus medius tendinopathy. STUDY DESIGN: Case series; Level of evidence, 4...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27867405/development-and-assessment-of-inter-and-intra-rater-reliability-of-a-novel-ultrasound-tool-for-scoring-tendon-and-sheath-disease-a-pilot-study
#9
L Horton, P Emery, P Marshall
BACKGROUND: Tendon and synovial sheath disease is common. A method of monitoring the status of tendons and sheaths is important for both diagnosis of pathology and evaluation of the efficacy of treatments. For this study, an ultrasound scoring tool was developed and its reliability tested between raters. The tool is novel in that it scores tendons and sheaths separately, an important consideration since disorders of these structures are not necessarily concurrent. METHODS: Thirty diseased tendons and sheaths were included in this pilot cross-sectional study...
August 2016: Ultrasound: Journal of the British Medical Ultrasound Society
https://www.readbyqxmd.com/read/27866971/snapping-knee-caused-by-the-thickening-of-the-medial-hamstrings
#10
B de la Hera Cremades, L Escribano Rueda, A Lara Rubio
We report a case of symptomatic subluxation of the semitendinosus and gracilis over the medial condyle of the tibia caused by the thickening of its tendons. Snapping was reproduced on active extension. Clinical examination and, above all, dynamic ultrasound were the key for the diagnosis because other imaging tests were normal. Due to failure of conservative treatment with physiotherapy and infiltrations, surgery was undertaken, involving desinsertion and excision of distal 8cm segment of the semitendinosus and gracilis tendons...
November 17, 2016: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/27861523/knee-moment-angle-characteristics-and-semitendinosus-muscle-morphology-in-children-with-spastic-paresis-selected-for-medial-hamstring-lengthening
#11
Helga Haberfehlner, Richard T Jaspers, Erich Rutz, Jules G Becher, Jaap Harlaar, Johannes A van der Sluijs, Melinda M Witbreuk, Jacqueline Romkes, Marie Freslier, Reinald Brunner, Huub Maas, Annemieke I Buizer
To increase knee range of motion and improve gait in children with spastic paresis (SP), the semitendinosus muscle (ST) amongst other hamstring muscles is frequently lengthened by surgery, but with variable success. Little is known about how the pre-surgical mechanical and morphological characteristics of ST muscle differ between children with SP and typically developing children (TD). The aims of this study were to assess (1) how knee moment-angle characteristics and ST morphology in children with SP selected for medial hamstring lengthening differ from TD children, as well as (2) how knee moment-angle characteristics and ST morphology are related...
2016: PloS One
https://www.readbyqxmd.com/read/27856801/efficacy-of-triamcinolone-acetate-and-methylprednisolone-acetonide-for-intrabursal-injection-after-ultrasound-guided-percutaneous-treatment-in-painful-shoulder-calcific-tendonitis-a-randomized-controlled-trial
#12
Milva Battaglia, Federica Guaraldi, Davide Gori, Emanuela Castiello, Emanuela Arvat, Alessandra Sudanese
BACKGROUND: Ultrasound-guided percutaneous irrigation of calcific tendinopathy (US-PICT) with intrabursal steroid injection is an elective treatment for painful rotator cuff calcific tendinopathy. PURPOSE: To compare the efficacy of post-US-PICT intrabursal 40 mg injection of triamcinolone acetonide (TA) versus methylprednisolone acetate (MA). MATERIAL AND METHODS: Forty patients (22 women; mean age 48.7 ± 7.2 years) with painful shoulder calcific tendinopathy, treated with TA or MA injected intrabursally after US-PICT, were included in this randomized controlled trial...
November 17, 2016: Acta Radiologica
https://www.readbyqxmd.com/read/27855536/comparison-of-estimates-of-achilles-tendon-loading-from-inverse-dynamics-and-inverse-dynamics-based-static-optimisation-during-running
#13
Thomas Kernozek, Naghmeh Gheidi, Robert Ragan
Tendon stress may be one of the important risk factors for running-related tendon injury. Several methods have been used to estimate Achilles tendon (AT) loading during a human performance such as inverse dynamics (ID) and inverse dynamics-based static optimisation (IDSO). Our purpose was to examine differences between ID and IDSO estimates of AT loading during running. Kinematic data were captured simultaneously with kinetic data. Imaging of the AT cross-sectional area was performed with ultrasound for 17 healthy runners (height: 170...
November 18, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27852376/-rheumatoid-arthritis-involving-tibialis-posterior-tendon-study-on-the-early-diagnostic-value-of-power-doppler-ultrasonography-and-comparison-with-surgery
#14
J Y Mao, X H Zhao, H Dai, X J Gao, L L Lu
Objective: To explore the value of power Doppler ultrasonography (PDUS) in the early diagnosis of tibialis posterior tendon injury induced by rheumatoid arthritis (RA). Method: From January 2014 to December 2015, a total of 48 cases (60 feet) of RA tendinopathy group were selected as the research subjects from Guanghua Hospital; 12 cases(20 feet) of non-RA tendinopathy group and 10 cases (20 feet) of healthy volunteers were selected as control group.The blood flow signals of pannus were observed by PDUS to determine whether the tendon was injured or the degree of the injury...
November 8, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27851825/severity-and-diurnal-improvement-of-morning-stiffness-independently-associate-with-tenosynovitis-in-patients-with-rheumatoid-arthritis
#15
Yoshihisa Kobayashi, Kei Ikeda, Takayuki Nakamura, Mieko Yamagata, Takuya Nakazawa, Shigeru Tanaka, Shunsuke Furuta, Takeshi Umibe, Hiroshi Nakajima
BACKGROUND AND OBJECTIVES: Although morning stiffness has long been recognized as a characteristic feature of rheumatoid arthritis (RA), it is no more included in the 2010 ACR/EULAR Classification Criteria or in the current major instruments for evaluating disease activity of RA. In this cross-sectional study, we aimed to determine the independent value and the optimal measurement of morning stiffness by clarifying the associations between morning stiffness and synovial inflammation. PATIENTS AND METHODS: We enrolled 76 consecutive RA patients who underwent musculoskeletal ultrasound examination and agreed to participate in the study...
2016: PloS One
https://www.readbyqxmd.com/read/27847117/quantification-of-collagen-fiber-orientation-in-human-tendons-with-the-coefficient-of-variation-of-echogenicity
#16
Tomonobu Ishigaki, Masahiro Kouno, Toshihiro Ikebukuro, Keitaro Kubo
The grayscale distribution on the ultrasonic images of tendons may be reduced with alignment of collagen fibers, because ultrasound signal intensity changes with alterations in tendon collagen fiber orientation due to acoustic anisotropy in the tendons. The purpose of this study was to investigate changes in the coefficient of variation (CV) of echogenicity in the Achilles tendon during passive dorsiflexion (the angle task) and isometric plantar flexion (the contraction task). Achilles tendon transverse ultrasonic images were collected from 14 healthy individuals every 10° from 20° to -20° (positive values for plantar flexion) in the angle task and every 10% maximum voluntary contraction (MVC) from 0% to 70% MVC in the contraction task...
November 9, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27846355/-precision-of-arthroscopic-surgeons-using-ultrasound-for-the-first-time-to-measure-tendon-structures
#17
J I Erquicia, M Tey, J L Doreste, J C Monllau, J M Centenera, J M Altisench
BACKGROUND: The precision of a group of arthroscopic surgeons using ultrasound for the first time was assessed when measuring shoulder and hip tendon structures. METHODS: Twenty-two students and 3 professors participated in a one-day theoretical-practical course. Two measurement rounds were conducted, during which each student identified the greater and lesser axes and the cross-sectional area of the biceps tendon, the supraspinous depth, as well as the lesser and greater axes and the cross-sectional area of the iliac psoas...
March 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27833972/evaluation-of-normal-and-pathological-achilles-tendon-by-real-time-shear-wave-elastography
#18
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/27833696/ultrasound-detection-of-patellar-fracture-and-evaluation-of-the-knee-extensor-mechanism-in-the-emergency-department
#19
Kiersten Carter, Arica Nesper, Laleh Gharahbaghian, Phillips Perera
Traumatic injuries to the knee are common in emergency medicine. Bedside ultrasound (US) has benefits in the rapid initial detection of injuries to the patella. In addition, US can also quickly detect injuries to the entire knee extensor mechanism, including the quadriceps tendon and inferior patellar ligament, which may be difficult to diagnose with plain radiographs. While magnetic resonance imaging remains the gold standard for diagnostic evaluation of the knee extensor mechanism, this can be difficult to obtain from the emergency department...
November 2016: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27833002/a-mathematical-model-characterising-achilles-tendon-dynamics-in-flexion
#20
N Chatzistefani, M J Chappell, C Hutchinson, S Kletzenbauer, N D Evans
The purpose of this study is to acquire mechanistic knowledge of the gastrocnemius muscle-Achilles tendon complex behaviour during specific movements in humans through mathematical modelling. Analysis of this muscle-tendon complex was performed to see if already existing muscle-tendon models of other parts of the body could be applied to the leg muscles, especially the gastrocnemius muscle-Achilles tendon complex, and whether they could adequately characterise its behaviour. Five healthy volunteers were asked to take part in experiments where dorsiflexion and plantar flexion of the foot were studied...
November 8, 2016: Mathematical Biosciences
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